For a long time I've had an XFinity cable modem and my 2.4 and 5 ghz SSIDs have always had the same name. About a week ago out of nowhere my laptops and phones could no longer connect for more than a few seconds at a time. The only way to get wifi access was to connect via a LinkSys extender I had purchased a while back to increase my overall coverage range. I opened ticket CR914371636 with Xfinity support and after about 90 minutes of troubleshooting I was told the modem was failing and I needed to exchange exchange it. I did that, and the problem did *not* go away. Noticing that a couple of older devices that only support 2.4 ghz still worked fine connecting directly to the SSID, I changed the name of the 2.4 ghz SSID to something different, and now all of a sudden everything works fine.
My question is - what changed? I had the same SSIDs running on the same model modem literally for years, and a few days ago they just started fighting with each other. Anyone else see this issue? Is there some other solution rather than my workaround?
Thanks in advance,