Hi,

About a year ago, I purchased a two-pack of Deco BE85. They have been pretty good and stable. 
The only 6 GHz client I had a the time was my Samsung Galaxy S23 Ultra smartphone. It has always had a stable connection to the 6 GHz network of either Deco with Wi-Fi 6E.

This March, I got a new Laptop, a MSI Prestige 16 AI Studio. One of the first laptops with Wi-Fi 7, Intel BE200 chip (Killer Wi-Fi 7 BE1750w).
Then problems started immediately. It would lose connection on the 6 GHz band all the time. It was rock solid on the 5 GHz band.
I got a lot of help troubleshooting the issue from MSI support, but they gave up after a while and told me to send the laptop back for a repair or replacement. They was not able to replicate the problem in their lab. 
I sent it for repair, but the repair centre found no faults and returned it. But I still had the problem, so I contacted the reseller and agreed to return it to them for a new laptop. I got a brand new laptop this week, same model. Same problem. :-(

In the mean time, I have tried two other 6 GHz computers on the network. One with Intel AX210 (Wi-Fi 6E) and one with Realtek 8832CU (Wi-Fi 6E)
The Intel one was stable as rock on 6 GHz, the Realtek one was even worse than the Wi-Fi 7 laptop. It was completely useless on 6 GHz, most of the time it wouldn't even connect to 6 GHz. 

I now started suspecting the Deco BE85 after all.
So I moved the most remote Deco to my desk next to the laptop. I probably never connected to this node before. Then it was completely stable with the MSI laptop on 6 GHz! But still useless with the Realtek USB WiFi 6E. 

I am pretty sure now that this unstability on 6 GHz is a TP-Link issue. And it seems like one of the Decos is worse than the other. Might be a coincidence, I have previously had stable connection for a long time before it starts dropping like crazy again, so I am not sure if it will continue to be stable.   

I do use all latest drivers and firmware available. 

Any suggestions?