The same thing happned to me. I did not reset my cable modem, a Cisco DPC3941T . The SSID name changed from HOME-xxxx to HOME-2.5 AND HOME-5. Isn't that interesting? The Wifi is dual transmission of 2.4 GHz and 5 GHz. The old SSID name does not trnsmit. I thought the wifi was not working so I called Xfinity for help... 3 times. No one new what I was talking about. I finnaly discovered that my router had chnaged the SSID to the 2 names stated above and that the wifi passwords for these were unchanged and retained my original passwords. The wifi works as before but with the 2 new SSIDs.
I decided not to change my wifi SSID back to what I had before and left everyting as it is. I reconnected all of my devices to the new SSIDs and now back online.
@Kycowger wrote: Ok so when we set up our router we had to change the name and password. So I changed it. I get home from work today and my routers name has reverted back to the "set up" name and has no internet access. Any ideas?
That might be caused by a reboot of the gateway, although I have never had that happen with my reboots.
Have you tried calling 1800comcast?
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