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ISA Server and Firewall Client

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by suzanne

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I have a Win2K machine running ISA server. I also have a NT4 PC running Exchange 5.5. The ISA server was upgraded from NT4, but I uninstalled the Proxy Server software before installing ISA server.

I upgraded my Exchange Server to Win2K, but ran into a problem. When I installed and implemented the Firewall client which needs to run to get email in and out via the ISA server, it all seemed to be fine until ai rebooted the server. The machine then hung on the "Restoring Network Connections" screen. I ran Microsoft and we thought at the time it was a different problem and went through a long and involved solution finding process which took 5 working days (without email during that time!!!).

In the end I did a clean install back to NT4 and installed the firewall client and the problem went away.

I tried the same process on another PC running Windows 2K Pro and had the same problem. It's not a case of waiting for it to time out and continue - I tried this and waited three days before giving up. The problem only shows on PCs running Win2K, running XP or Win9X dont have the problem. I've installed on a clean disk after doing a format, installed all service packs, but get the same problem. Every time I install the Firewall client and reboot the PC it hangs.

The problem is, I need to upgrade my server to Win2K so I can migrate to Exchange 2000, but am unable to do so.

Does anyone have any bright ideas? Apart from installing Exchange on the ISA server which is my nextoption.

3 replies

by cg it

I'll take a stab. No where in your question do you mention Active Directory [AD]running on a W2K PDC. Are you running AD on a W2K PDC? Exchange 2000 requires AD to work and AD only works on a W2K PDC server.

As far as ISA server, configuring inbound and outbound SMTP, POP3, NNTP, traffic is just setting rules allowing such traffic on their respective ports. By default, ISA server closes all ports until a rule is created allowing traffic that meets that rule [including day and time restrictions [if any]].

There is still the question of AD running [which Exchange 2000 requires to operate].

by cg it

You did mention that you have a NT4 PDC. That has to be upgraded to a W2K PDC and then have AD installed. Once AD is installed, you can then install Exchange 2000. There's tons of articles on migration from NT4 to W2K and Exchange 5.5 to E2K.

by suzanne

Yes, the ISA server is also my PDC and is running AD. Sorry, my questions wasn't as clear as it could have been. The Exchange version I'm running at the moment is 5.5, I havent done the upgrade to 2000 yet because I need to do some other ground work. The operating system is NT4 which I tried to upgrade to Win2K Server.

The email goes out fine if I've got the firewall client installed on a Exchange server running NT4, but if I upgrade the server to Win2K server then run the firewall client itdies.

I dont even get as far as trying to send mail out because it dies in the boot up. The problem also occurs on a Win2K Pro PC, so it's not prejudiced. But the firewall client will run on an XP PC.

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