Hello, 


I have Archer C6 V2 EU version and after updating to the latest version "Archer C6(EU)_V2_200630" The internet connection on the 5G band is inconsistent. 
The internet connection speed gets dropped for 3 seconds each 5-6 seconds of connection.
For example, You are downloading a game on STEAM store, if You open the " Windows task manager" and then go to "Performance" then monitor the WIFI download speed at that moment. 
You will see that the download pattern looks like a mountain. the download speed for example continues at a rate of 100 Mbps for 6 seconds then drops to 0 for 3  seconds and then again downloading for 6 seconds then off again and so on. You will see that the pattern looks like mountains. 

If I change the connection to 2G then it is stable again and working fine. 

I have tried my old router and it is working fine as well on 5G without any issue. 

Please help to have this issue solved, as this way, I have unfortunately to keep using my old router for 5G to get the full potential of my +100 Mbps internet speed. 

The issue is that I can not downgrade to the version that i had before as it is not allowed to downgrade to a version lower than Archer C6(EU)_V2_200402