Had a brief power outage. After the power came back internet connection has been slow. I have trouble or unable to connect to my zoom meeting calls on my phone. Streaming on the tv is slow. etc. I have reset the gateway via the app several times. I have even unplugged the gateway. It's been over a week. When I check the status on the app it says I'm getting full speeds to the house.
For a test, does a computer / device hardwired directly to the router / gateway device with an ethernet cable have the same problem ?
With this test, we are trying to isolate this from being either a WiFi-only problem or a problem with the general connection to the Comcast system which would of course affect both. It's a good first step of troubleshooting before we proceed any further.