Hello - 

Today I logged into my AX10 to check some settings out - noticed that there was an available update. Updated the firmware, and upon rebooting the 5ghz band was no longer functional. Note: I did not change any settings, I was just looking at the LAN network settings.  The 5ghz SSID broadcasts randomly - meaning sometimes it is available to see, sometimes it is not. Most of the time it is not. If I try to connect to it, I either get a message saying that I cannot connect to it, or I can connect, and there is no internet ONLY on the 5ghz band, then it will randomly disconnect me from the 5ghz ssid. 
 

I have tried disabling and re-enabling, Restarting the router, resetting to factory settings, downloading the firmware from tplinks website and reinstalling - nothing. I am now forced to use only the 2,4ghz connection. Having spent a decent amount of money on this router- I would like to find a way to be able to fix this issue.