Beautiful nice day,
I have an unstable Wi-Fi connection on my Tower PC that is interrupted every 5-20 minutes. With a Wi-Fi stick on the TowerPC, there's an internet connection without interruptions. I bought the new WLAN card, it was also recognized without problems and updated to the latest drivers. WLAN works on the laptop or PS4 without such an interruption. According to the Wi-Fi heat map, the interference signal is -70dBm.
I'm open to any suggestion.
Shortly a few more information.
WLAN card: Asus PCE-AC51.
Internet line: 50k.
Modem: FritzBox7590.
My buddy had the same problem, but I don't know if it is the same with you, with my buddy the card gets too hot, so I removed the sticker on the surface and have a pair of passive heat sinks with adhesive thermal pads attached by the airflow The card was then cooled a bit in the pc and the connection breaks stopped.