Tp t2u archer wont connect to 5ghz but 2.4 ghz working fine

Tp t2u archer wont connect to 5ghz but 2.4 ghz working fine

Tp t2u archer wont connect to 5ghz but 2.4 ghz working fine
Tp t2u archer wont connect to 5ghz but 2.4 ghz working fine
2022-08-23 14:13:39
Model: Archer T2U Plus  
Hardware Version: V1
Firmware Version:

My network adapter wont connect to 5ghz.I can see the 5ghz wifi but cant connect and its working fine in all other devices .I have a mercusys  AX3000 Dual-Band Wi-Fi 6 Router .I tried changing it to 80 mhz and also tried changing channels i.e , 40 ,36,44, 48 

2 Reply
Re:Tp t2u archer wont connect to 5ghz but 2.4 ghz working fine
2022-08-26 01:57:01

Hello   @DROIDO 

It's good to know you have to tried changing 5Ghz Wi-Fi Channel and Bandwidth settings.

If the network adapter is able to see 5Ghz Wifi but fails to connect to 5Ghz Wi-Fi, please check some tips here

  • Confirm you have put in correct 5Ghz Wi-Fi password
  • Set wireless security to WPA/WPA2-AES

For a test, you could use a different 5Ghz Wi-Fi password or create a 5Ghz Guest Wifi network without any password and see if the adapter could connect to it or not.

  • If the adapter has connected to 5Ghz wifi before, delete the Wifi profile and manually put in wifi password to reconnect to Wifi

How to connect to wireless networks and remove its profile on Windows 10


If still the same, for further investigation, may I have a photo of the error message, a photo of 5Ghz wireless settings on router?

Has the adapter worked with 5G of router before? Please also share the driver date and a photo of PC system information here, thank you. 

 How to check driver version of TP-Link adapters and system information of your computer

Happy New Year! Meet Us at CES 2023 | Featuring Wi-Fi 7, EasyMesh, Matter, and a New HomeShield Security
Re:Tp t2u archer wont connect to 5ghz but 2.4 ghz working fine
2022-08-30 05:02:00

Methods to fix-

1) Check to see if your Router is Compatible with 5GHz
Before we get into the more complicated stuff, we should probably start by making sure that your router is actually compatible with and equipped to deal with the 5GHz wavelength. The quickest way to do this is to check the specs of the specific router that you have. If the manual is long since disposed of, you should be able to give it a simple Google. 

Naturally, if your router wasn’t built with this usage in mind, it can’t be trained to do so from now on out. Unfortunately, the only solution in that case is to upgrade the TP-Link router that you are using. However, if it is equipped to deal with 5GHz and just isn’t doing what it is supposed to, it is time to move onto the next step. 


2) Check the Settings on the Router

With that first step out of the way, it is time to jump into the actual troubleshooting part of this article. To kick things off, the first thing we need to do is check the settings on the router. The reason for this is that the most common cause of the 5GHz option not being available is that the device may have been incorrectly set up and configured. 

So, to rectify this, you will need to go into your settings. What you should be looking for is that the 802.11 connection type is enabled. You should also then set the router to operate on the 5GHz frequency once this change has been made.

Finally, to make sure that all of these chances are enacted and enabled, reboot the router after you are done. In most cases, this should be the problem fixed. If not, it is time to move onto the next step. 

3) Your Firmware may need Upgrading

Your Firmware may need Upgrading

If after the above step you didn’t notice any change, the most likely thing that is holding you back is that your firmware isn’t upgraded. When this happens, your router’s performance can suffer in some pretty unusual ways, up to and including causing this issue. 

So, always make sure to check for updates on a relatively frequent basis to ensure that glitches like this don’t happen to you. As soon as the latest updates are done, everything should start working again for most of you. 

4) Check Device Settings and Compatibility

Check Compatibility

One possibility that is worth considering is that your router may be on the 5GHz wavelength, but the devices that you are trying to connect to it may not be. This is quite often the case with older laptops, tablets, and PCs. The result of this is that, if you are trying to find your router with such a device, it simply won’t show up on the list of available networks. 

However, if your device is compatible with 5GHz, the next logical thing to do is to make sure that that particular feature is switched on. It may have been switched off at some stage by accident, which could explain the lack of connectivity. 

In general, we would recommend having both the 2.4 and 5GHz options switched on at all times. However, toggling between the two can occasionally solve the issue for you sometimes. 


5) Update your Drivers

If you are using a mobile device, you might need to update your firmware to resolve the issue. On a more robust device, the trick may well be to update your network drivers. 

These sorts of software issues can play havoc with your connectivity if left unchecked and cause the 5GHz Wi-Fi being transmitted from your router to not show up. So, once everything is updated to the most recent available versions, everything should start working as normal again. 


This may help you,

Rachel Gomez