TP-Link TL-WR940N v4 WiFi router: Pros and Cons
The TP-Link TL-WR940N v4 (TL-WR940NV4) router released in 2012. It is powered by Atheros AR7240 @ 400 MHz chipset, 32 MB of RAM and 4 MB of flash. The N450 router is compatible with IEEE 802.11b/g/n standards, and the maximum speed that you can get with TL-WR940N v4 is 450 Mbps. The router has 1 x 10/100 Mbps WAN and 4 x 10/100 Mbps LAN ports.
Table of Contents
Our personal experiences and opinions form the basis of this article. We aimed to share insights on a topic, and we hoped others would find it useful and inspirational. The specs below rely on official manufacturer data, but we also consider user reviews. If you noticed any mistakes or missing details about the TP-Link TL-WR940N v4, please let us know. Furthermore, we strive to deliver a thorough and precise overview.
If you need more features, you may want to consider better TP-Link routers. Or, you can look at other routers on the market. TP-Link has a history of introducing innovative features and technologies into their products.
TP-Link TL-WR940N v4 specifications
| Brand | TP-Link |
|---|---|
| Name | TL-WR940N v4 |
| Type | TL-WR940NV4 |
| Rating | |
| Launch | 2012 |
Body
| Dimensions | 230 x 144 x 35 mm |
|---|
If you plan to move or travel a lot and need to take your router with you, the size is important. It needs to be small to be easy to carry.
System
| Chipset | Atheros AR7240 @ 400 MHz |
|---|---|
| RAM | 32 MB |
| Flash | 4 MB |
| OS | TP-Link |
| Alternative OS | OpenWRT DD-WRT |
| Power supply | 9 V / 0.85 A |
The Atheros AR7240 @ 400 MHz CPU provides processing power. It handles tasks and services within the TL-WR940N v4 router. The amount of RAM in a router can affect its performance. It also affects its capacity to handle concurrent operations and traffic. The 4 MB flash memory in the router serves as the storage medium for the router's firmware. The firmware upgrade process may vary depending on the router model. However, it often involves accessing the router's web-based administration interface.
Other router operating systems offer more customization options. They also have advanced features. Router makers compare this to the default firmware. OpenWrt offers many features and capabilities. They extend the functionality of networking hardware. The TP-Link packages the TL-WR940N v4 router with 9 V / 0.85 A PSU.
Network
| Protocols | IPv4 |
|---|---|
| LAN ports | 4 x 10/100 Mbps |
| WAN ports | 1 x 10/100 Mbps |
| Mobile network | no |
| VPN support | no |
Like many modern routers, the TL-WR940N v4 supports many network standards too. The IPv4 uses 32-bit addresses, represented as four sets of numbers separated by periods (e.g. 192.168.0.1). The TL-WR940N v4 features a Fast Ethernet WAN port that has a maximum speed of 100 Mbps.
Wireless
| Antennas | 3 x 5 dBi fixed |
|---|---|
| 2.4 GHz | yes |
| 5 GHz | no |
| 60 GHz | no |
| Standards | IEEE 802.11b/g/n |
| Class | N450 |
| Speed | 450 Mbps |
| Transmit power | 20 dBm |
| Security | WEP WPA WPA2 WPS |
| Guest network | no |
A well-positioned antenna can reduce interference and signal weakening. This leads to a more reliable connection. The TL-WR940N v4 is compatible with 2.4 GHz Wi-Fi networks. This is a Wi-Fi 4 router, with slower data transfer speeds. This can result in slower downloads, video buffering, and reduced performance. Real-world TL-WR940N v4 router speeds are lower than its theoretical maximum speed. WEP was the first Wi-Fi security protocol. But it is now seen as weak and easy to hack.
The introduction of WPA2 (Wi-Fi Protected Access 2) improved upon WEP. It provides stronger security. WPS (Wi-Fi Protected Setup) provides an easy method. It connects devices to a Wi-Fi network.
Connectivity
| USB ports | no |
|---|---|
| Print server | no |
| File server | no |
The TL-WR940N v4 router doesn't have file-server or print-server functionality.
Administration
| Default IP | 192.168.1.1 |
|---|---|
| Default username | admin |
| Default password | admin |
If you can't log in to your TP-Link router's setup panel, try resetting it. A reset can help you troubleshoot. It is highly recommended to change the default password of your TL-WR940N v4 router. Do this after the initial setup.
Pros and Cons
Every router, including this TP-Link one, has its good sides and not-so-good sides. Let's take a closer look at both to get a full understanding of what this router can do. We'll talk about what it does well and also where it could use some improvements. Just remember, this is just what I think, and you might see things differently.
Pros
- OpenWrt compatible
- WPS friendly
Cons
- insufficient flash
- lack of Gigabit LAN
- Non-gigabit WAN port
- missing Wi-Fi 6 support
- lacks Wi-Fi 5 compatibility
- reduced Wi-Fi bandwidth
- incompatible with WPA3
- no USB connectivity
TP-Link TL-WR940N v4 photos
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