SA540 Changed ISPs and now remote management no longer connects

[Tropolis Group]

Hi:

I have an SA540.  We changed ISPs so I updated the WAN settings.  Now remote management will not connect.  If I try to telnet to the public IP from outside on port 443 it won't connect.  Remote management used to work w/old ISP WAN IP and I didn't make any other cfg. changes.

Thanks for any insights!

Bob H. 

[Tropolis Group]

Note if I switch it to port 60443 then it connects but upon switching back to port 443 it still refuses the connection.

[Tropolis Group]

Also, it's running firmware 2.2.0.7

Could this issue be a bug in the firmware?