The Xfinity cable on our street was severed. After it was fixed, all my Roku sticks will not stay connected to my wifi. I can setup a connection, it shows on the TV screen that it is connected, but as soon I I try to stream something there is no connection. Before the Xfinity cable broke, every thing worked perfectly.
The question is what would be changed in some internal modem or router setting that would do this. At the same time, I can't see my network printer.
Xfinity check their settings, I've rest the modem and router to no avail.
Do you have access to the router? And have you installed an app like WiFi Analyzer for Android or something similar for iPhone? I ask is its possible the router channel selection is set to 'auto' and its picking channels that are highly congested. So if you install the app you'll be able to see how many others are using the same one as you are the disable the auto selection and set the channel to one with less congestion. If you can't access the router, contact Xfinity and find out how
Unplug both the router and modem from power for about a minute. Plug modem back, wait until modem connects back to the ISP, plug back in router, let it boot up. Then try resetting each of the sticks like they were new and set up the network again and see if that helps. In addition to the other post with a wi-fi analyzer, my other suggestion would try factory resetting your router and set it up again if neither of those things work.
It’s was just the router. It’s seems obvious now.