xb8 wp2A printer authentication

I have  the HP office pro 8600 and the XB8 router from Xfinity for wifi.   I tried to use the setup wizard to have it connect to the new router.  Same printer I have used in the past with their other routers.  The setup wizard will see SSID but will not accept the pwd.   Apparently there is an issue with WPA3 not being compatible with the setup wizard....I tried HP support and their answer is "contact xfinity or go to a wired solution".  Wired doesn't work for a family these days.

I logged into the xfinity router admin at 10.0.0.1 and the feature to change off WP3A is greyed out and can't be changed.  There is no way to change it to WPA2 in any of the settings. I tried manually to add the MAC address, nope that didn't work either. 

I have reached out to xfinity tech support and their first tier had no answer, other than going back to a XB6 or getting a new printer.

Checking here in the forum to see if other network guru's have found a solution or if Tier 2/3 at Xfinity wants a crack at resolving this problem.