GL-AXT1800 no longer connecting to Xfinity hotspot

This setup has been working for about a year with no problem. Suddenly I'm unable to even pull an IP address.

Note that I am still able to access this hotspot on my Samsung tablet. But not my Windows PC.

Any suggestions? Thx!

Hello,

Is Xfinity an EAP Wi‑Fi? Does it require username, password, EAP-Method (TTLS) to connect?

Please try cloning the Samsung tablet's MAC address to repeater‘s MAC addr.

Please PM to me the router syslog.

Edit:
BTW, please try to install the v4.6.11 for AXT1800, and repeat the Xfinity with the above docs guide.