Live view not working when phone is on WiFi

Hi all, As the title suggests, I’m having a strange issue which has only started recently. If we try to view our Ring Doorbell Cams live view while we are connected to our WiFi it doesn’t work, however, if we pause WiFi on our phones it works instantly so is not a WiFi strength issue to the bell. I’ve tried the usual of power cycling everything but that hasn’t helped. Anyone have any other suggestions? Cheers!