New xFi Gateway, WiFi not working because all devices say the password is incorrect even though I KNOW it is not wrong

Hi, @user_8b37c9. I see you may be having a similar issue with your network and equipment. I'll be glad to help. Can I have more details about your situation and the steps you have taken so far? 

@user_8b37c9​ I rebooted my gateway and set my 2.4ghz and 5ghz wifi bands to be separate SSID instead of the same. I can't say which really fixed it, but that is what I did and I haven't had the issue since. I think it was probably the reboot and possibly just a matter of time. It didn't persist after the first day. 

Thank you for following up on this topic @kevwbuts. It sounds like your scenario was due to what we call band steering. This is when you share the same network name for both the 2.4 GHz and 5 GHz bands on your WiFi. When you do this, it helps the xFi equipment optimize your connection by assigning the band that would provide the most optimal performance. I understand, however, there may be times you want your bands split, so you can select the band on your end. I recently broke this down in detail here https://forums.xfinity.com/conversations/your-home-network/ring/6360505eb5284b6592d8ce40?commentId=6362f89692a15b227c27d499 which I think can help give you more insight about this process, how to set-up, and what to expect what you do. I hope this helps as well @user_8b37c9.