[Okta Webinar] Learn how to a build a cloud-first strategyRegister Now

x
?
Solved

Issues with Exchange

Posted on 2005-04-14
14
Medium Priority
?
268 Views
Last Modified: 2010-04-10
I am having an issue with Exchange where remote people connect to our VPN and then try to get into their mailbox and get the error message saying that networking problems are prohibiting connection to exchange server.  When they try to get to their mailbox through webmail the page just hangs and never comes up.  They are able to ping the exchange server with success.  They are also able to connect to all their shares and pull files from the server.  None of the people on site are having the issue either.  I looked at the server and everything seems to be green light.  I am now thinking it is issues with our parent company's VPN that we use.  Could someone please point me in the right direction?
0
Comment
Question by:LiquidHappyRDM
  • 5
  • 3
  • 3
  • +1
12 Comments
 
LVL 1

Expert Comment

by:dumbo2569
ID: 13784898
Sounds to me like a firewall is blocking your traffic. This might help you.

http://support.microsoft.com/default.aspx?scid=KB;EN-US;q310298&
0
 
LVL 24

Expert Comment

by:purplepomegranite
ID: 13784996
If one of the remote user's computers is brought in to the LAN, do these problems still occur?  
0
 

Author Comment

by:LiquidHappyRDM
ID: 13785022
no, I had one guy ship his machine back and when I bring it on the LAN it works just fine.  I checked the machine for firewall software and there is none and windows firewall was disabled as well.
0
NEW Veeam Backup for Microsoft Office 365 1.5

With Office 365, it’s your data and your responsibility to protect it. NEW Veeam Backup for Microsoft Office 365 eliminates the risk of losing access to your Office 365 data.

 
LVL 24

Expert Comment

by:purplepomegranite
ID: 13785068
Well, it's definitely something being blocked on the VPN then.  What handle the VPN?  i.e. is it directly into a Windows server, or via a security router, or what?
0
 

Author Comment

by:LiquidHappyRDM
ID: 13785095
unfortunately that I do not know.  It is our parent company's vpn that we are using.  I just really wanted to know if I should call them and let them know there is a problem with their VPN or if I should start doing some more troubleshooting on this end.
0
 
LVL 1

Expert Comment

by:dumbo2569
ID: 13785121
I agree with purplepomegranite that all the signs point to your VPN. Make sure the users are on an ACL that has full access to your exchange server.

Try to run the portquery tool from an affected machine through the VPN. Check for TCP Ports 135, 139 and UDP ports 137, 138. Those are the main ports that MS Exchange uses.

Check out this site. It has a listing of more ports that Exchange might use.
http://www.petri.co.il/ports_used_by_exchange.htm



0
 
LVL 24

Expert Comment

by:purplepomegranite
ID: 13785122
I would call them and explain the problem, certainly.  If they control the VPN, they should be able to help isolate the problem.

Once you have proved that it is the VPN that is the deciding factor (which by bringing the remote computer in you have done), you need to look into that.
0
 
LVL 1

Expert Comment

by:dumbo2569
ID: 13785159
Sorry. I'm doing too many things at once and I've ended up confusing myself. Disregard the information I posted about TCP ports 135-139. Those are RPC and NetBIOS ports..
0
 

Author Comment

by:LiquidHappyRDM
ID: 13809537
It actually turned out to be a problem with the windows hotfix KB893066.  After uninstalling the hotfix it worked like a champ again. Yay for Microsoft!
0
 
LVL 24

Expert Comment

by:purplepomegranite
ID: 13809622
Wow, that's one for the record.  Now you've got to accept your own answer ;)
0
 
LVL 24

Expert Comment

by:purplepomegranite
ID: 14293217
LiquidHappyRDM found the solution himself, so points should be refunded.
0
 

Accepted Solution

by:
modulo earned 0 total points
ID: 14357078
PAQed with no points refunded (of 500)

modulo
Community Support Moderator
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article will inform Clients about common and important expectations from the freelancers (Experts) who are looking at your Gig.
Make the most of your online learning experience.
Internet Business Fax to Email Made Easy - With  eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…

872 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question