I just got Sonic early this morning at my home, after setting everything up I was shocked that the speed test over wifi were 60 megabits, while the wired connections rarely went above 100 megabits... I used to get over 600 with xfinity. I think I'm regretting the switch. Why is this happening? Have tried to reset and unplug and replug all the devices and nothing. I live in Oakland in the Bay Area
Since you're in Oakland, I assume you're on Sonic's Fiber service - this sounds suspiciously like a bad ethernet cable if you're not getting above 100mbps. Have you tried swapping out the ethernet cables between your ONT and router and/or router and computer?
I'd definitely want to try that as a first step. Also if you've not yet called into Sonic's support, you should! They'll be able to figure out what's going on.