Archer AX11000 v1.0 upgrade to 2.2.1 Build 20250725 rel.9119(5553)
Archer AX11000 v1.0 upgrade to 2.2.1 Build 20250725 rel.9119(5553)

Hi ,
I've just upgraded to firmware 2.2.1Build 20250725 rel.9119(5553) and now when I use my VPN to connect to our data center I can't copy any files from any of the serves to my local PC. This would normally work fine, I would connect to the VPN and then use Windows explorer to connect to teh URI can copy a file to my local PC.
Now the copy fails to start and all network activity stops .
The only thing changed is the Router firmware version.
Where can I get a list of firmware versions to rollback to . This page https://www.tp-link.com/au/support/download/archer-ax11000/#Firmware only shows firmware up to Archer AX11000(US)_V1_1.3.4 Build 20230906 for V1 .
If my hardware version is v1.0 why did the Check for updates button load 2.2.1 Build 20250725 rel.9119(5553) . Is it fine to use this firmware?
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after upgrade to 20250725 firmware, my PC would periodically not able to resolve DNS even though I can ping the DNS server, I have even tried to statically point to open dns server, the PC won't resolve. Had to reboot the router for the conection to restore. is this a known issue?
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@rsk22 ,
Sure, I have sent it via Message. Please let me know if it can help.
If not, please provide more details, like screenshots with error message.
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hello @xiekai37 ,
Could you take some screenshots with the error message and send them here?
Please manually set your DNS server to a reliable public DNS server (such as 8.8.8.8 or 1.1.1.1) and ensure the settings are correctly saved. Here are the steps to change the DNS server on your TP-Link router: How to Change the DNS servers on the wireless router?
How about other clients? Can they access the internet normally?
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