@Joseph-TP

 

I have changed the DNS now to 8.8.8.8 and 1.1.1.1, There are still issues with the 6GHz WiFi network. I get "Connected without internet," and when I open apps, they work for about 5-10 seconds before I get an error message saying there is no internet connection.

 

The guest network is working normally, even though it is also enabled on 6GHz.

 

Other devices have stable wired and wireless connection, but i find it odd that my previous samsung s 22 ultra had the same issues as my brand new samsung s25

 

 

  @Tallaks1 

 

there's an setting called private DNS in Samsung devices to setup DoH which doesn't always work fine and often causes the 'connected with no internet' problem. There are 3 options when set it up; Off, Automatic & Manually enter your DNS provider, you could try to set it to OFF and check if you're able to connect to the internet. The setting is at: Settings > Connections > More Connection Settings > Private-DNS. If you have DoH/DoT enabled in the router and on your phone (as I described above) you definitely get the 'connected with no internet' error, so please give the above a try:)

When using Firmware v1.1.1, my S25 Ultra also experiences random disconnections. Private DNS and DoT/DoH were disabled on both the S25 Ultra and the BE550.

  @Joseph-TP 

 

I have diabled "private DNS" on my phone and DoT/DoH on the router is disabled, but the problem still persist.