TP-Link TL ER5120 Review | 77 Data compared
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SPECS
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REVIEWS
ALTERNATIVES

TP-Link TL ER5120 Review | 77 Data compared

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  • Avg. price in UK: ~£160
  • Avg. price in US: ~$140
  • Wi-Fi version: N/A
  • Wi-Fi speed: N/A Mbps
  • LAN port speeds: 1 Gbps
  • Mesh Wi-Fi: no

TP-Link TL ER5120 review. Compare 77 technical specifications and user reviews to see how this product ranks in the Routers category and whether it is worth buying.

6.6

Overall score

What it is: An overall evaluation of the router's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best routers on the market.

Score components:

90.0%

6.6

Technical Score

10.0%

?

User score

Good
6.6

Technical Score

What it is: An assessment of the router's technical performance, covering key areas such as Wi-Fi performance, wired connectivity, security, software features, coverage, and design.

When it matters: When you want to compare routers based on technical performance and available features.

Score components:

26.0%

4.1

Wireless

20.0%

5.4

Ports

18.0%

9.8

Networking

14.0%

8.7

Security

12.0%

6.5

Hardware

10.0%

7.0

Management

Good
?

User score

What it is: A rating that combines user reviews and the total number of reviews received by the router.

When it matters: When you want to know how a router performs in daily use and how reliable it is for speed, coverage, and stability according to user feedback.

Score components:

70.0%

?

User reviews

30.0%

?

Popularity

  • 8.3
    Gaming

    Score components:

    33.0%

    ?

    Wi-Fi speed

    28.0%

    ?

    CPU clock speed

    22.0%

    ?

    RAM capacity

    17.0%

    10

    Maximum connected devices

  • 6.8
    Travel

    Score components:

    40.0%

    ?

    Weight

    30.0%

    ?

    Wi-Fi speed

    20.0%

    4.0

    Cellular modem type

    10.0%

    4.0

    SIM slot

  • tp-link-tl-er5120
  • tp-link-tl-er5120
  • tp-link-tl-er5120
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Best prices in UK

    N/A~ £160

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The TP-Link TL-ER5120 is a Gigabit Load Balance Broadband Router designed for small to medium enterprises, featuring a 64-bit dedicated processor and 2Gbit DDRIII high-speed memory for robust data processing. Its hardware configuration includes 1 fixed Gigabit WAN port, 1 fixed Gigabit LAN/DMZ port, and 3 adaptable Gigabit WAN/LAN ports, supporting up to 4 WAN connections for intelligent load balancing and link backup. Key pros include extensive security features such as DoS defense, ARP inspection, and 4kV lightning protection, alongside specialized management tools like a built-in PPPoE server and one-click IM/P2P application blocking. However, reported cons include potential CPU performance bottlenecks under heavy PPPoE routing loads and a lack of built-in wireless capabilities, requiring external access points for Wi-Fi.

Technical Specifications of router TP-Link TL ER5120

Technical Score

What it is: An assessment of the router's technical performance, covering key areas such as Wi-Fi performance, wired connectivity, security, software features, coverage, and design.

When it matters: When you want to compare routers based on technical performance and available features.

Score components:

26.0%

?

Wireless

20.0%

?

Ports

18.0%

?

Networking

14.0%

?

Security

12.0%

?

Hardware

10.0%

?

Management

6.6
TP-Link TL ER5120 has a technical score of 6.62 points, which is lower than that of 62.8% of products in this category.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the router.

When it matters: When you want to know how a router performs in daily use and how reliable it is for speed, coverage, and stability according to user feedback.

Score components:

70.0%

0.0

User reviews

30.0%

1.0

Popularity

?
Popularity
What it is: An indicator based on the number of reviews received by the router.
When it matters: When you prefer to choose a router reviewed and selected by many other buyers.
1.0
TP-Link TL ER5120 has a popularity of 1 points, which is lower than 72.1% of products in this category.
Ratio quality/price

What it is: An indicator that combines the router's overall rating with its cost.

When it matters: When you are looking for a router with a good balance between network performance, features, and price.

Score components:

60.0%

6.6

Overall score

40.0%

9.7

Price

7.5
TP-Link TL ER5120 has a quality-to-price ratio of 7.5 points, which is lower than 68.4% of products in this category.
Brand name
What it is: The manufacturer or brand of the product.
When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

Importance: LOW

TP-Link
Wi-Fi version
What it is: Identifies the Wi-Fi generation the router supports, such as Wi-Fi 5, 6, 6E, or 7.
When it matters: When newer phones, laptops, and consoles need the latest Wi-Fi efficiency and speed features.

Importance: HIGH

Good value: Wi-Fi 6 (802.11ax)

N/A
Wi-Fi bands
What it is: Lists which wireless frequency bands the router can use, such as 2.4 GHz, 5 GHz, or 6 GHz.
When it matters: When you need to balance range, speed, and congestion across different types of client devices.

Importance: HIGH

Good value: 2.4 GHz + 5 GHz

N/A
Wi-Fi speed
What it is: The advertised maximum wireless throughput rating of the router under supported conditions.
When it matters: When several users stream, download, and game at once and you want more wireless headroom.

Importance: HIGH

Good value: >2700 Mbps

N/A
Channel widths supported
What it is: Lists the Wi-Fi channel widths the router can use, such as 20, 40, 80, or 160 MHz.
When it matters: When you want the option to trade peak speed against stability in crowded wireless environments.

Importance: MEDIUM

Good value: 20 MHz + 40 MHz + 80 MHz

N/A
Show more
Wi-Fi security protocols
What it is: Lists the wireless security standards the router supports, such as WPA2 or WPA3.
When it matters: When you want stronger wireless protection without locking out older devices that still need compatibility.

Importance: MEDIUM

N/A
DoS protection
What it is: Provides defenses intended to reduce the impact of denial-of-service traffic against the router or network.
When it matters: When exposed services or remote access make resilience against traffic floods more important.

Importance: LOW

yes
TP-Link TL ER5120 includes DoS protection. 12.8% of routers include DoS protection.
SPI intrusion protection
What it is: Uses stateful packet inspection to track sessions and block suspicious unsolicited traffic more accurately.
When it matters: When the router needs a stronger first line of filtering on an internet-facing connection.

Importance: LOW

yes
TP-Link TL ER5120 includes SPI-based intrusion protection. 6.1% of routers include SPI-based intrusion protection.
MAC address filtering
What it is: Lets the router allow or block devices based on their MAC addresses.
When it matters: When you want an extra device-level access rule beyond passwords and network names.

Importance: LOW

yes
TP-Link TL ER5120 supports MAC address filtering. 2.2% of routers include MAC address filtering.
URL filter
What it is: Allows the router to block or allow access based on website addresses or domain rules.
When it matters: When you need to restrict specific sites for children, guests, or work-policy reasons.

Importance: LOW

yes
TP-Link TL ER5120 supports URL filtering. 3.4% of routers include URL filtering.
Show more
IPv6 support
What it is: Support for the newer IPv6 internet addressing standard alongside the older IPv4 system.
When it matters: When your internet provider or network already uses IPv6, or you want the router to stay compatible as IPv6 use becomes more common.

Importance: MEDIUM

yes
TP-Link TL ER5120 supports IPv6. 11.5% of routers are IPv6-ready.
Dynamic routing
What it is: Supports routing protocols or dynamic route updates instead of relying only on static route entries.
When it matters: When the router sits in a more complex network with changing paths between multiple subnets.

Importance: LOW

yes
TP-Link TL ER5120 supports dynamic routing. 47.8% of routers support dynamic routing.
Inter-VLAN routing
What it is: Allows the router to pass traffic between separate VLANs under controlled rules.
When it matters: When you need segmented networks to communicate selectively instead of staying fully isolated.

Importance: LOW

yes
TP-Link TL ER5120 supports inter-VLAN routing. 76.7% of routers support inter-VLAN routing.
VLAN tagging
What it is: Lets the router mark traffic with VLAN tags for segmented or ISP-specific network setups.
When it matters: When you separate guest, office, IoT, or ISP-required traffic into different network segments.

Importance: MEDIUM

yes
TP-Link TL ER5120 supports VLAN tagging. 38.2% of routers include VLAN tagging.
QoS
What it is: Provides quality-of-service controls that prioritize some traffic over less important traffic.
When it matters: When calls, gaming, and downloads compete and you want latency-sensitive traffic protected.

Importance: MEDIUM

yes
TP-Link TL ER5120 includes QoS controls. 3.2% of routers include QoS controls.
Show more
N. of LAN ports
What it is: Measures how many LAN ports the router includes. A higher count expands direct connectivity for matching devices.
When it matters: When you run a home office with NAS, TV boxes, and desktops, having more LAN ports avoids extra switches and keeps latency lower on wired links.

Importance: MEDIUM

Good value: 4 ports

4
TP-Link TL ER5120 has 4 LAN ports, which is more than 23.7% of routers and the same as 69.2% of routers.
LAN port speeds
What it is: Lists the Ethernet speeds available on the router’s LAN ports, such as Gigabit or multi-gig.
When it matters: When wired transfers to NAS, desktops, or access points need more than basic Ethernet speeds.

Importance: HIGH

Good value: 1 Gbps

1 Gbps
TP-Link TL ER5120 offers 1 Gbps on its LAN ports, which is faster than 27.1% of routers and on par with 59.9% of routers.
Includes LAN-capable combo ports.
N. of WAN ports
What it is: Shows how many separate WAN uplink ports the router provides for internet connections.
When it matters: When you use dual internet lines, backup WAN, or load balancing between multiple external links.

Importance: MEDIUM

Good value: 1 WAN port

4
TP-Link TL ER5120 has 4 WAN ports, which is more than 99.5% of routers and the same as 0.5% of routers.
N. of USB ports
What it is: Shows how many USB ports the router includes for storage, printers, or modem accessories.
When it matters: When you plan to share storage, attach a printer, or use USB-based network extras.

Importance: LOW

Good value: 1 USB port

0
TP-Link TL ER5120 has 0 USB ports, which is fewer than 60.8% of routers and the same as 39.2% of routers.
Power over Ethernet (PoE)
What it is: Power over Ethernet support, meaning the router can receive power, deliver it, or be part of a PoE-based installation.
When it matters: When you want cleaner installation with fewer separate power cables, especially in ceilings, walls, racks, or remote locations.

Importance: LOW

no
TP-Link TL ER5120 does not support Power over Ethernet (PoE). 0.5% of routers can be powered over Ethernet.
Show more
Management interface
What it is: Shows how the router is configured and monitored, such as web UI, app, or command-line tools.
When it matters: When setup depth and day-to-day admin convenience are part of the buying decision.

Importance: MEDIUM

Web UI, CLI, SNMP
TP-Link TL ER5120 uses Web UI, CLI, SNMP for management, which is more advanced than 97.8% of routers and equal to 2% of routers.
Firmware upgrade method
What it is: Describes how router firmware updates are installed, such as automatic OTA, web UI, or manual upload.
When it matters: When you want security fixes and new features applied with less maintenance friction.

Importance: MEDIUM

Web UI
TP-Link TL ER5120 supports Web UI firmware update methods, which are less convenient than 69.5% of routers and equal to 29.7% of routers.
Traffic monitoring
What it is: Lets the router track bandwidth usage by device, app category, or time period.
When it matters: When you need to find which devices or activities are causing slowdowns or high data use.

Importance: LOW

yes
TP-Link TL ER5120 includes traffic monitoring. 18.1% of routers include traffic monitoring.
Guest Wi-Fi network
What it is: Lets the router create a separate wireless network for visitors or less-trusted devices.
When it matters: When guests need internet access without reaching private devices on the main network.

Importance: LOW

no
TP-Link TL ER5120 does not offer a guest Wi‑Fi network. 91.7% of routers offer a guest Wi‑Fi network.
Captive portal
What it is: Supports a login or acceptance page that users must pass before getting internet access.
When it matters: When guest networks, rentals, cafes, or managed access points need a sign-in page.

Importance: LOW

yes
TP-Link TL ER5120 offers captive portal features. 76.7% of routers offer captive portal features.
Show more
CPU clock speed
What it is: Shows the operating frequency of the router processor, often listed per core.
When it matters: When routing, encryption, QoS, and many active clients can put heavier load on the CPU.

Importance: MEDIUM

2 x 4 GHz
TP-Link TL ER5120 runs at 2x4 GHz, which is faster than 91.6% of routers.
RAM capacity
What it is: The amount of working memory available for sessions, routing tables, and running router services.
When it matters: When many devices, VPN tunnels, or advanced features need the router to stay responsive under load.

Importance: MEDIUM

Good value: >=512 MB

256 MB
TP-Link TL ER5120 has 256 MB of RAM, which is more than 48.7% of routers and the same as 15.4% of routers.
Internal storage
What it is: The built-in storage available for logs, apps, shared files, or other local router functions.
When it matters: When the router runs extra services and needs space for logs, packages, or shared content.

Importance: LOW

Good value: >=8 GB

0.007812 GB
TP-Link TL ER5120 has 0.007812 GB of internal storage, which is less than 72.7% of routers and the same as 20.6% of routers.
Hardware acceleration
What it is: Uses dedicated hardware paths to offload routing, NAT, encryption, or switching tasks from the main CPU.
When it matters: When heavy routing or security features would otherwise reduce throughput on the processor alone.

Importance: MEDIUM

yes
TP-Link TL ER5120 offers hardware acceleration. 31.4% of routers offer hardware acceleration.
N. of external antennas
What it is: Shows how many antennas are mounted externally on the router.
When it matters: When you want stronger adjustable coverage or plan to aim antennas for difficult room layouts.

Importance: LOW

Good value: 3 antennas

0
TP-Link TL ER5120 has 0 external antennas, which is fewer than 59.6% of routers and the same as 40.4% of routers.
Show more

TP-Link TL ER5120 vs the average router

  • Supports automatic failover
    TP-Link TL ER5120 offers automatic failover, while the average router does not. 24.9% of routers offer automatic failover.
    What it is: Can switch to a backup internet connection automatically if the primary line fails.
    When it matters: When uptime matters and the network cannot stop every time the main WAN drops.

    Importance: MEDIUM

    TP-Link TL ER5120 offers automatic failover, while the average router does not. 24.9% of routers offer automatic failover.
  • Better management tools
    TP-Link TL ER5120 uses the management interface Web UI, CLI, SNMP, while the average router uses Web UI, App.
    What it is: Shows how the router is configured and monitored, such as web UI, app, or command-line tools.
    When it matters: When setup depth and day-to-day admin convenience are part of the buying decision.

    Importance: MEDIUM

    TP-Link TL ER5120 uses the management interface Web UI, CLI, SNMP, while the average router uses Web UI, App.Web UI, CLI, SNMP vs Web UI, App
  • Higher CPU clock speed
    TP-Link TL ER5120 has a higher CPU clock speed than the average router (2x4 GHz vs 2x0.5 GHz). The average router has a CPU clock speed of 2x0.5 GHz.
    What it is: Shows the operating frequency of the router processor, often listed per core.
    When it matters: When routing, encryption, QoS, and many active clients can put heavier load on the CPU.

    Importance: MEDIUM

    TP-Link TL ER5120 has a higher CPU clock speed than the average router (2x4 GHz vs 2x0.5 GHz). The average router has a CPU clock speed of 2x0.5 GHz.2x4 GHz vs 2x0.5 GHz
  • Supports captive portal
    TP-Link TL ER5120 supports captive portal, while the average router does not. 23.5% of routers support captive portal.
    What it is: Supports a login or acceptance page that users must pass before getting internet access.
    When it matters: When guest networks, rentals, cafes, or managed access points need a sign-in page.

    Importance: LOW

    TP-Link TL ER5120 supports captive portal, while the average router does not. 23.5% of routers support captive portal.
  • Supports inter-VLAN routing
    TP-Link TL ER5120 supports inter-VLAN routing, while the average router does not. 23.5% of routers support inter-VLAN routing.
    What it is: Allows the router to pass traffic between separate VLANs under controlled rules.
    When it matters: When you need segmented networks to communicate selectively instead of staying fully isolated.

    Importance: LOW

    TP-Link TL ER5120 supports inter-VLAN routing, while the average router does not. 23.5% of routers support inter-VLAN routing.
  • 236 more connected devices
    TP-Link TL ER5120 supports more connected devices than the average router (300 vs 64). The average router supports 64 connected devices.
    What it is: The vendor’s stated upper limit for how many client devices the router can support at once.
    When it matters: When the network must handle many phones, TVs, smart-home devices, and PCs together.

    Importance: LOW

    Good value: >=128 devices

    TP-Link TL ER5120 supports more connected devices than the average router (300 vs 64). The average router supports 64 connected devices.300 vs 64
  • 135,012 more NAT sessions
    TP-Link TL ER5120 has more concurrent NAT sessions than the average router (150,000 vs 14,988). The average router supports 14,988 concurrent NAT sessions.
    What it is: The number of simultaneous NAT-tracked connections the router can handle before tables become a bottleneck.
    When it matters: When many apps and devices open lots of parallel internet sessions at the same time.

    Importance: LOW

    Good value: >=16000 sessions

    TP-Link TL ER5120 has more concurrent NAT sessions than the average router (150,000 vs 14,988). The average router supports 14,988 concurrent NAT sessions.150,000 vs 14,988
  • 236 more connected devices
    TP-Link TL ER5120 supports more connected devices than the average router (300 vs 64). The average router supports 64 connected devices.
  • Supports automatic failover
    TP-Link TL ER5120 offers automatic failover, while the average router does not. 24.9% of routers offer automatic failover.
  • Supports inter-VLAN routing
    TP-Link TL ER5120 supports inter-VLAN routing, while the average router does not. 23.5% of routers support inter-VLAN routing.
  • 135,012 more NAT sessions
    TP-Link TL ER5120 has more concurrent NAT sessions than the average router (150,000 vs 14,988). The average router supports 14,988 concurrent NAT sessions.
  • Better management tools
    TP-Link TL ER5120 uses the management interface Web UI, CLI, SNMP, while the average router uses Web UI, App.
  • Supports captive portal
    TP-Link TL ER5120 supports captive portal, while the average router does not. 23.5% of routers support captive portal.
  • Higher CPU clock speed
    TP-Link TL ER5120 has a higher CPU clock speed than the average router (2x4 GHz vs 2x0.5 GHz). The average router has a CPU clock speed of 2x0.5 GHz.

Total
Wireless
Networking
Management
Hardware
  • No band steering
    TP-Link TL ER5120 does not support band steering, while the average router does. 51.8% of routers support band steering.
  • No beamforming
    TP-Link TL ER5120 does not support beamforming, while the average router does. 56.7% of routers support beamforming.
  • No WPS support
    TP-Link TL ER5120 does not support WPS, while the average router does. 89.5% of routers support WPS.
  • 1 fewer USB ports
    TP-Link TL ER5120 has fewer USB ports than the average router (0 vs 1). The average router has 1 USB ports.
  • 3 fewer WAN ports
    TP-Link TL ER5120 has fewer WAN ports than the average router (4 vs 1). The average router has 1 WAN ports.
  • Limited firmware updates
    TP-Link TL ER5120 supports the firmware update methods Web UI, while the average router supports Web UI, App, Automatic.
  • Less capable NAS services
    TP-Link TL ER5120 includes none NAS services, while the average router includes SMB, FTP, time machine, NFS, web access.
  • No guest Wi-Fi network
    TP-Link TL ER5120 does not offer a guest Wi-Fi network, while the average router does. 91.4% of routers offer a guest Wi-Fi network.
  • No DLNA support
    TP-Link TL ER5120 does not support DLNA, while the average router does. 54% of routers support DLNA.
  • 93.8% less internal storage
    TP-Link TL ER5120 has less internal storage than the average router (0 GB vs 0.125 GB). The average router offers 0.125 GB of internal storage.
  • 2 fewer external antennas
    TP-Link TL ER5120 has fewer external antennas than the average router (0 vs 2). The average router has 2 external antennas.
  • Fewer power options
    TP-Link TL ER5120 uses AC power input, while the average router uses DC barrel.
  • 4.55x heavier weight
    TP-Link TL ER5120 is heavier than the average router (2000 g vs 440 g). The average router weighs 440 g.
  • 238 mm wider width
    TP-Link TL ER5120 is wider than the average router (440 mm vs 202 mm). The average router is 202 mm wide.
  • 3 older release date
    TP-Link TL ER5120 is an older model than the average router (2012 vs 2015). The average router release year is 2015.
  • Limited firmware updates
    TP-Link TL ER5120 supports the firmware update methods Web UI, while the average router supports Web UI, App, Automatic.
    What it is: Describes how router firmware updates are installed, such as automatic OTA, web UI, or manual upload.
    When it matters: When you want security fixes and new features applied with less maintenance friction.

    Importance: MEDIUM

    TP-Link TL ER5120 supports the firmware update methods Web UI, while the average router supports Web UI, App, Automatic.Web UI vs Web UI, App, Automatic
  • Less capable NAS services
    TP-Link TL ER5120 includes none NAS services, while the average router includes SMB, FTP, time machine, NFS, web access.
    What it is: Lists the onboard file-sharing services the router can provide, such as SMB, FTP, or media sharing.
    When it matters: When the router is expected to handle light file serving without separate NAS hardware.

    Importance: LOW

    TP-Link TL ER5120 includes none NAS services, while the average router includes SMB, FTP, time machine, NFS, web access.none vs SMB, FTP, time machine, NFS, web access
  • 1 fewer USB ports
    TP-Link TL ER5120 has fewer USB ports than the average router (0 vs 1). The average router has 1 USB ports.
    What it is: Shows how many USB ports the router includes for storage, printers, or modem accessories.
    When it matters: When you plan to share storage, attach a printer, or use USB-based network extras.

    Importance: LOW

    Good value: 1 USB port

    TP-Link TL ER5120 has fewer USB ports than the average router (0 vs 1). The average router has 1 USB ports.0 vs 1
  • No guest Wi-Fi network
    TP-Link TL ER5120 does not offer a guest Wi-Fi network, while the average router does. 91.4% of routers offer a guest Wi-Fi network.
    What it is: Lets the router create a separate wireless network for visitors or less-trusted devices.
    When it matters: When guests need internet access without reaching private devices on the main network.

    Importance: LOW

    TP-Link TL ER5120 does not offer a guest Wi-Fi network, while the average router does. 91.4% of routers offer a guest Wi-Fi network.
  • 93.8% less internal storage
    TP-Link TL ER5120 has less internal storage than the average router (0 GB vs 0.125 GB). The average router offers 0.125 GB of internal storage.
    What it is: The built-in storage available for logs, apps, shared files, or other local router functions.
    When it matters: When the router runs extra services and needs space for logs, packages, or shared content.

    Importance: LOW

    Good value: >=8 GB

    TP-Link TL ER5120 has less internal storage than the average router (0 GB vs 0.125 GB). The average router offers 0.125 GB of internal storage.0.007812 GB vs 0.125 GB
  • No band steering
    TP-Link TL ER5120 does not support band steering, while the average router does. 51.8% of routers support band steering.
    What it is: Can guide dual-band or tri-band clients toward the more suitable frequency band automatically.
    When it matters: When you want devices spread more intelligently across 2.4, 5, or 6 GHz bands.

    Importance: LOW

    TP-Link TL ER5120 does not support band steering, while the average router does. 51.8% of routers support band steering.
  • No beamforming
    TP-Link TL ER5120 does not support beamforming, while the average router does. 56.7% of routers support beamforming.
    What it is: Uses signal-shaping techniques to direct wireless energy more effectively toward connected clients.
    When it matters: When coverage at the edge of the home needs to stay more stable for active devices.

    Importance: LOW

    TP-Link TL ER5120 does not support beamforming, while the average router does. 56.7% of routers support beamforming.
  • No DLNA support
    TP-Link TL ER5120 does not support DLNA, while the average router does. 54% of routers support DLNA.
    What it is: Supports DLNA-related media sharing or discovery for compatible devices on the local network.
    When it matters: When TVs, media players, and local content need easier plug-and-play discovery on the network.

    Importance: LOW

    TP-Link TL ER5120 does not support DLNA, while the average router does. 54% of routers support DLNA.
Total
Overall
Wireless
Ports
Management
Hardware

Graphic comparison of TP-Link TL ER5120 and other routers

Attribute category
Attribute
No results found

Third-party reviews

What customers like about TP-Link TL ER5120?

  • Effective multi-WAN load balancing that supports up to 4 WAN ports simultaneously
  • Excellent value for the price, often cited as having more features than higher-end competitors at a lower cost
  • Robust and heavy-duty metal construction suitable for industrial or business environments
  • Reliable performance and high uptime once configured, with minimal speed drop-offs
  • Intuitive web interface that is relatively easy to set up for those with basic networking knowledge
  • Includes professional-standard lightning protection and built-in security features like DoS defense

What customers dislike about TP-Link TL ER5120?

  • Lacks built-in wireless (Wi-Fi) and modems, requiring separate devices for those functions
  • Early firmware versions (v1.00) were reported as flakey and buggy
  • Large physical footprint that requires significant shelf or rack space compared to consumer routers
  • Not ideal for gaming; users have reported difficulties obtaining an 'open' NAT on consoles
  • Failover switchover time is not instantaneous, often taking 5-10 seconds to redirect traffic
  • Documentation can be sparse, making advanced configurations more time-consuming

Video reviews

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8.2
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