There is a TP-Link Archer C2 router. Internet provider speed is 100 Mbps. The speed reaches 98-99 Mbit / s via cable. After moving, I ran into a problem that the speed over Wi-Fi dropped sharply to 26 Mbps (and sometimes up to 5 Mbps). However, this problem is observed on the phone, laptop and tablet. On a computer, the Wi-Fi speed reaches 80-95 Mbps.
Changing DNS, switching to another channel did not help.
Wi-Fi Analyzer shows excellent signal and free channel.
The problem arose after the move.
What could be the problem?
Answer
Hello. It is difficult, of course, to give a specific answer to your question, since the reason for the drop in speed can be anything. But you wrote that you have 80-95 Mbps Wi-Fi on your computer. TP-Link Archer C2 is a dual-band router, that is, it most likely distributes 2 Wi-Fi networks to you. It is difficult to get 80-95 Mbit / s in the 2.4 GHz range. I am assuming that the computer is connected to a 5 GHz network.
So maybe the rest of your devices are connected to a Wi-Fi network at 2.4 GHz? And because of this, the speed dropped on the laptop, tablet and phone. On these devices, even next to TP-Link Archer C2, the speed is up to 26 Mbps and from time to time drops even lower? If the speed is unstable, it is most likely due to noise. Are there many nearby Wi-Fi networks in the house? Is the router installed near a device that might be interfering?
I don’t know how many times you changed the Wi-Fi channel and which ones you set, but you need to try several options. I also recommend experimenting with the channel width. After changing the parameters, save the settings and reboot the router. These are the settings that apply to a 2.4 GHz network.
On TP-Link Archer C2, depending on the hardware version, different control panels were installed. So the appearance of the settings may differ from those in the screenshot.
If you have only new devices in your house, you can also set the network operation mode to 802.11n (Only n) in the settings.
If possible. In the web interface, in the first screenshot, you can select only mixed mode. Only n is not supplied.
In the event that all this does not help, then you can supplement your question by answering my questions that I asked above. Let's think further.
27.11.18
4
Asked by Alexander
