S25 Connection problem with wifi and mobile network

[Members_eLTOBke]

Hello, I am facing strange problem with my new S25. While making normal call or Wifi/WhatsApp call, there is a call drop. There is a feeling like a lag during the  call but actually dropping the call. In short, i cant use my phone for normal calls. Initially,  suspected wifi/network problem  but on the same environment everything works perfect on a different phone. I tried network reset but no luck. I looked at signal strength and it seems normal. Does anyone else facing this issue ? 

[Tourbillon De La Vie]

Did you check with your network provider tech support 

[Jojo5878]

Having the same problem on my S25 ultra. Speed is very slow compared to other phones.