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Moving ISA to new server, can't shut down old server - 26.Jun.2008 11:55:28 AM

mcreams99

Posts: 1
Joined: 26.Jun.2008
Status: offline

I have migrated my win2k/ISA server to a new Win2k3 server and my configuration is finished. Only now when I turn off my old server some users cannot browse the internet and most users lose pop3/smtp email access.

I have changed all the users PCs whether they are webclients or firewall clients and I have reinstalled the proxy client. I have checked network settings, proxy settings, registry enties all to no avail.

Here is a scenario: I have the client changed over to the new server, pointing the web proxy settings to new server, IP gateway to new server, routing table looks good, reinstalled the MSP. If I turn off the firewall service on the old server, I cannot even telnet into my pop3/smtp server on the outside of my network.

For some reason, my old ISA server is passing pop3/smtp traffic and my new server is blocking it. I have compared all my settings between the two servers and they are identical.

This server is behind another hardware firewall so I just want ISA to pass ALL traffic. I just use the logs for reporting purposes. (and no, the hardware firewall is not a factor)

Anyone have any ideas? I am at the end of my rope.

Thanks in advance.