Ever since the newest update I've been having really bad WiFi speeds. I've reset network settings, reset my router and still nothing. Everything else connected to WiFi is getting 150mbps+ while my phone can barely get 1-5. What's going on??
I'm having the same issue on my S20 Ultra unfortunately :\
Just bought a S5e tablet and it was fine until updated system and now wifi connected but very slow.
Is there no answer to this?