Re: Problems accessing Exchange Server from the VPN

Turned out to be much simpler than I thought once I got to see the
issue firsthand.

At least at his home, his wireless router was giving him the same exact
internal IP as our Exchange Server. Once I set it up to give him
something different, even if the first 3 digits were the same,
everything worked fine.

Thanks for all your help.

rastlin.rastlin@xxxxxxxxx wrote:
I agree with the ping test and host file idea. You can also try
turning off simple file sharing and enable netbios over tcp/ip.
Sometimes those 2 help out the checkpoint client. Also static DNS
suffix can fix problems.

hairymon wrote:
We just installed a SonicWall SSL-VPN 2000 to allow complete and easy
broadband remote access. It works around an included program called
NetExtender that lets you log into the network as if you were here and
simply go into network file shares and directly access your Exchange
Server mailbox with Outlook like you would in the office.

One person, who uses it with a Tablet PC, has some weird problems. At
two hotels it worked perfectly for him. But at home and at a client
site, he can log into the network but when he opens Outlook it says
"Exchange Server not available".

His home setup is a cable modem with a Linksys wireless router; and he
wirelessly connects to the cable modem. Because of this I thought
"overlapping subnets" might be the issue (though I imagine if so he
wouldn't have even been able to log into the network to begin with). As
a test I had him directly connect the cable modem to his tablet/laptop
and bypass wireless access and he still had the same problem. My home
setup is a cable modem with the same provider and I have no problem at
all. By the way, he can ping internal IP's when connected and can use
Outlook Web Access when he connects to get to his email.

SonicWall tech support has been clueless. First they told me to make
his account so all traffic is tunneled through the VPN box, that didn't
work. Then they said "overlapping subnets", but I think the cable modem
test disproves that. Then they said something about fooling around with
MTU settings, but I'm not so sure.

It's a real mystery and we're wondering if anyone out there has any
thoughts on it, thanks!

.

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