Wifi problem after update firmware

Wifi problem after update firmware

Wifi problem after update firmware
Wifi problem after update firmware
2026-01-01 01:05:39 - last edited Tuesday
Model: Archer A8  
Hardware Version: V2
Firmware Version: 1.15.0 Build 250729 Rel.63726n(4555)

Hello.


I have an Archer A8 Ver 2.20 router.


A few days ago, an online firmware update appeared, version 1.15.0 Build 250729 Rel.63726n(4555). I installed it, and everything went smoothly. However, I have a problem with Wi-Fi. It automatically turns off and sometimes turns on by itself after a while, and sometimes I have to turn it on manually. I did a factory reset, but the problem persists. The Archer A8 support website does not have the software version that I have. Downgrading also does not work, as I get the error ,,Firmware update failed. Check the configuration file and try again.'' The router does not overheat. I have also noticed that the waiting time for loading the administration page and selecting individual options has increased. Is there any way to revert to the previous firmware version or install a patch to improve Wi-Fi performance?

 

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1 Accepted Solution
Re:Wifi problem after update firmware-Solution
2026-01-07 02:37:43 - last edited Tuesday

Hello @marcinosbdg ,

Welcome to our community.

 

Have you tested which wireless band encounters the unstable connection? 

 

For an unstable wireless connection: 
    1) Make sure the Router is properly placed; it should be put in an open area instead of inside a cabinet or shelf.
    2) Change the wireless channel to another one. You may refer to 
Changing Channel and Channel Width on a TP-Link Router (new logo).
    3) Change channel width to avoid interference. For 2.4GHz wireless client devices, adjust the 2.4GHz channel width to 20MHz; for 5 GHz wireless client devices, adjust the 5GHz channel width to 80MHz or 40MHz, etc.

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Re:Wifi problem after update firmware-Solution
2026-01-07 02:37:43 - last edited Tuesday

Hello @marcinosbdg ,

Welcome to our community.

 

Have you tested which wireless band encounters the unstable connection? 

 

For an unstable wireless connection: 
    1) Make sure the Router is properly placed; it should be put in an open area instead of inside a cabinet or shelf.
    2) Change the wireless channel to another one. You may refer to 
Changing Channel and Channel Width on a TP-Link Router (new logo).
    3) Change channel width to avoid interference. For 2.4GHz wireless client devices, adjust the 2.4GHz channel width to 20MHz; for 5 GHz wireless client devices, adjust the 5GHz channel width to 80MHz or 40MHz, etc.

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