PS5 Connection problems and bad wifi

Hey guys,

I keep getting an error whenever I download something for a longer time (more than 30mins) or when I play a multiplayer game. The PS5 just cant connect to the Wifi anymore and I have to restart the whole console and suddenly it works. When I play multiplayer games or watch videos on YT or streams on Twitch, it just laggs like hell. That doesnt happen with other devices I have, my wifi isnt that bad.

This is the error I am getting.