DHCP renewal issue

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I have a Dell notebook (XP Pro) with both a wired and wireless adapter. And I
have a VPN tunnel (contractor supplied). Everything was fine till a few
months ago (about the time I loaded SP2), then the VPN client was unable to
obtain an IP address from the DHCP server. I also noticed that the wireless
connection would no longer get an IP address when I enabled it (I keep it
disabled when using the wire).

After many hours of digging and searching and trying various suggested fixed
I have gotten nowhere as far solving the problem. But I have narrowed it
down. It appears that any network connection that is disabled at bootup will
not be able to perform an ipconfig /renew. If I enable and reboot it works
fine. This provides a workaround for the wireless but not the VPN tunnel.

I have searched the KB and these forums and tried everything, including all
the Winsock fixes, the TCP/IP stack resets, etc. At this point I know of
nothing else I can do other than offer it up on the altar of OS reload. Which
I don't really want to do if at all possible. Has anyone seen this or have a
suggestion?

Thanks
 
Mark said:
I have a Dell notebook (XP Pro) with both a wired and wireless adapter. And I
have a VPN tunnel (contractor supplied). Everything was fine till a few
months ago (about the time I loaded SP2), then the VPN client was unable to
obtain an IP address from the DHCP server. I also noticed that the wireless
connection would no longer get an IP address when I enabled it (I keep it
disabled when using the wire).

After many hours of digging and searching and trying various suggested fixed
I have gotten nowhere as far solving the problem. But I have narrowed it
down. It appears that any network connection that is disabled at bootup will
not be able to perform an ipconfig /renew. If I enable and reboot it works
fine. This provides a workaround for the wireless but not the VPN tunnel.

I have searched the KB and these forums and tried everything, including all
the Winsock fixes, the TCP/IP stack resets, etc. At this point I know of
nothing else I can do other than offer it up on the altar of OS reload. Which
I don't really want to do if at all possible. Has anyone seen this or have a
suggestion?

Thanks
Click to expand...
Hi Mark,
Try to check the Firewall and assign the programs and services you want.
Here is a link on how to configure your Firewall to work:
http://www.microsoft.com/windowsxp/using/security/internet/sp2_wfintro.mspx
Hope this Helps
Regards
nass
 
nass said:
Hi Mark,
Try to check the Firewall and assign the programs and services you want.
Here is a link on how to configure your Firewall to work:
http://www.microsoft.com/windowsxp/using/security/internet/sp2_wfintro.mspx
Hope this Helps
Regards
nass
Click to expand...

Thanks but one of the first things I did after installing SP2 was to turn
off the MS firewall. I use Sygate when I need a firewall on and have it shut
down while I am working on this. I have left the MS firewall off although I
did turn it on long enough to go through and set it off for all applications
and then turn the whole firewall off again. I thought there might be a
setting that had gotten "hung" in some way. That didn't help either.

When I was working with the VPN connection I ran Ethereal on it so I could
watch and see what happens. The tunnel actually connects and I can see
traffic on the network at the other end. But there is never any DHCP traffic
so the address is never resolved and the tunnel is closed.
 
Mark said:
Thanks but one of the first things I did after installing SP2 was to turn
off the MS firewall. I use Sygate when I need a firewall on and have it shut
down while I am working on this. I have left the MS firewall off although I
did turn it on long enough to go through and set it off for all applications
and then turn the whole firewall off again. I thought there might be a
setting that had gotten "hung" in some way. That didn't help either.

When I was working with the VPN connection I ran Ethereal on it so I could
watch and see what happens. The tunnel actually connects and I can see
traffic on the network at the other end. But there is never any DHCP traffic
so the address is never resolved and the tunnel is closed.
Click to expand...
Hi Mark,
Try to Flush the DNS by opening a RUN Command and type the following:
ipconfig /flushdns press OK and Open Control Panel and Go to
Network and Internet Connections, Network Connection Click TCP/IP Properties
and be sure that the settings Okay for Obtaining the Ip and the DNS Server.
Click on Advance >> DNS and check that Append Primary and connections
specific DNS Suffixes are Checked or selected.
Register the connection address in DNS.
On the WINS TAB be sure that LMHOSTS is Enabled and Enable NETBIOS over
TCP/IP.
Click OK and close.
Reboot and try to Log in your connection.
If no joy try to Ping the server name and see what message you will get.
Hope this Helps
nass
 
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