xbox one not connecting to wifi,

xbox one not connecting to wifi,
xbox not connecting to wifi, shows the name of the wifi on the xbox screen, so it seems like it is connect but says service info unavailable, all other devices connect to wifi just fine, what is blocking this connection?
the name of the wifi shows up on the xbox one screen, just says NAT unavailable, service info available, please help

we have comcast cable , but use EERO router mesh system. Has been working fine for at least a year.

:)