Re: Can Not Ping By Name
- From: "Peter" <pczurak@xxxxxxxxxxxxx>
- Date: Tue, 15 Nov 2005 22:32:03 -0600
"Chuck" <none@xxxxxxxxxxx> wrote in message
news:q50jn1psd32sc8337l1sercau21dol15dj@xxxxxxxxxx
> On Mon, 14 Nov 2005 23:51:40 -0600, "Peter" <pczurak@xxxxxxxxxxxxx> wrote:
>
>>"Chuck" <none@xxxxxxxxxxx> wrote in message
>>news:i6pin1p453hedveue1lfdhv15t9b9pfkpf@xxxxxxxxxx
>>> On Mon, 14 Nov 2005 22:04:39 -0600, "Peter" <pczurak@xxxxxxxxxxxxx>
>>> wrote:
>>>
>>>>We have installed SonicWall Firewall and when I connect through VPN I
>>>>can
>>>>not connect to the Exchange server through Outlook
>>>>
>>>>When I try to create a profile
>>>>On "check names" prompt in Services, server and mailbox are found
>>>>sometimes
>>>>but not allways. When not found it says "The name could not be
>>>>resolved."
>>>>When the mailbox and server are found, it never really connects to the
>>>>mailbox...getting a message like 'folder not available'.
>>>>
>>>>I also can not ping any computer including the Exchange server by name,
>>>>but I can ping any computer including the Exchange server by IP address
>>>>(This is only through VPN)
>>>>
>>>>The Exchange runs on Windows 2003 SBS.
>>>>
>>>>What can I check to fix this problem?
>>>
>>> Peter,
>>>
>>> Make sure there's no firewall packaged with the VPN client.
>>> <http://nitecruzr.blogspot.com/2005/10/irregularities-in-workgroup-visibility.html>
>>> http://nitecruzr.blogspot.com/2005/10/irregularities-in-workgroup-visibility.html
>>>
>>> What's your DNS server? Does it have an entry for the Exchange server?
>>> <http://nitecruzr.blogspot.com/2005/05/windows-xp-on-nt-domain.html>
>>> http://nitecruzr.blogspot.com/2005/05/windows-xp-on-nt-domain.html
>
>>I don's see any settings for the Firewall in the VPN client
>>
>>DNS server is the same physical server as the Exchange , Windows 2003 SBS
>
> Peter,
>
> Speaking from gut feel, about 50% of the problems here, that are resolved
> simply, turn out to be firewall related. Maybe 25% are LSP / Winsock /
> TCP/IP
> corruption. The other 25% are miscellaneous.
>
> With your symptoms, combined with the VPN involvement, a firewall becomes
> more
> than 50% likely. "Cannot ping by name but can ping by IP address"
> suggests a
> DNS server issue. DNS server issues can, again, be caused by firewall
> problems.
>
> Most common network problems:
> <http://nitecruzr.blogspot.com/2005/10/irregularities-in-workgroup-visibility.html>
> http://nitecruzr.blogspot.com/2005/10/irregularities-in-workgroup-visibility.html
>
> Firewall issues:
> <http://nitecruzr.blogspot.com/2005/05/your-personal-firewall-can-either-help.html>
> http://nitecruzr.blogspot.com/2005/05/your-personal-firewall-can-either-help.html
>
> Of the problems here that are NOT resolved simply (as above), you have to
> do
> some work. I can advise you, but you gotta do the leg work.
>
> Network problem solving - general advice:
> <http://nitecruzr.blogspot.com/2005/08/solving-network-problems-tutorial.html>
> http://nitecruzr.blogspot.com/2005/08/solving-network-problems-tutorial.html
>
> Network problem solving - Network Neighborhood issues:
> <http://nitecruzr.blogspot.com/2005/05/troubleshooting-network-neighborhood.html>
> http://nitecruzr.blogspot.com/2005/05/troubleshooting-network-neighborhood.html
>
> When you say "I cannot ping", you mean your computer, right? I presume
> there
> are some computers that DON'T have any such problem (you have an SBS
> server
> which hopefully is working?)? OK, zero in on the problem thru analysis.
> Identify 1 or 2 computer with problems, and 2 or 3 without problems.
> Examine
> "browstat status" and "ipconfig /all" from each computer identified. Read
> this
> article, and linked articles, and follow instructions precisely:
> <http://nitecruzr.blogspot.com/2005/05/troubleshooting-network-neighborhood.html#AskingForHelp>
>
> And bottom post. For your own sake, as well as mine. Help me to help
> you.
> <http://nitecruzr.blogspot.com/2005/05/how-to-post-on-usenet-and-encourage.html#TopPosting>
> http://nitecruzr.blogspot.com/2005/05/how-to-post-on-usenet-and-encourage.html#TopPosting
>
> --
> Cheers,
> Chuck, MS-MVP [Windows - Networking]
> http://nitecruzr.blogspot.com/
> Paranoia is not a problem, when it's a normal response from experience.
> My email is AT DOT
> actual address pchuck mvps org.
Thank you for your help.
I can not ping any computer on company's network from my home computer
through VPN by computer name, but I can ping the same computer by the IP
address.
Also the default website on Windows 2003 http:\\companyweb does not work
anymore either, I am getting 'Page Can Not be Displayed".
FYI:
Before we installed the SonicWall the Company's network was 192.168.1.1 and
we changed it to 192.168.10.1.
(the network consists of 8 computers plus the server)
So I think it is the DNS issue, but I do not know where to look or how to
fix it.
.
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