@luke240778:
On Status > Gateways, the new one says online.. BUT computers on my LAN can ping 8.8.8.8 and so on, but can't open any www. sites, which to me means DNS problem.
Unfortunately humans often translate a browser error message to "can't open site zzz" with significant information loss. The browser error report is almost always more informative than "can't open …"
The problem could be upstream congestion, no access to the name server, broken upstream link between you and the hosts you attempted to access, ... The browser error report will likely give a clue to help identify a specific cause.
@luke240778:
A second attempt and different results.. Gateway status says Online, but not even pfSense can ping it via IP or ping anything else on the www.
As above, giving the ping command and its response is almost always more informative than "can't ping".