BM 3.6 VPN. We have two server to server VPN connections. Both have
been
trouble free for over a year. Recently, the ISP for one of the remote

offices had a router melt down. The router was repaired/replaced
several
hours later. Since then(3 days ago), we have not been able to
re-establish
the VPN. If I "reset" the VPN tunnel, the server on the other side
"hears"
it and states that the VPN has become disconnected and re-connected.

However, no traffic seems to be able to get through the tunnel.

I assume the ISP made some change to their router to cause this. The
server
can be pinged(when the filters are taken down) and internet traffic is
going
through.

Any thoughts on how I can convince the ISP that this is a problem with
their
router?

Thanks!!!

jc