Windows 7 64 bit does not ping Exchange 2003

Posted on 2010-08-27
Medium Priority
Last Modified: 2012-05-10
I searched everywhere for a solution and no luck. Hopefully someone here can help. I have three Win 7 64 bit computers that are not able to connect to our Exchange server. It was working fine for a couple months, then all of a sudden, it stopped working on all three computers. I have tried everything (that i've read online). I turned off firewalls, virus scanners, reinstalled office 2007, disabled IPv6, Win 7 system restore, and no luck. I'm able to ping everything else but our Exchange server. Any help or ideas would be greatly appreciated.
Question by:grimreeper2010
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 3
  • 2
  • +1

Expert Comment

ID: 33547461
Security update?

Do you use OWA? can you telnet on  port 80?  (telnet ip 80)

Have you checked for DNS issues/WINS , or route issues?

Are they on the same VLAN?  Is it the same for all users on those PCs  

Expert Comment

ID: 33547463
Does a tracert work?
LVL 24

Expert Comment

by:B H
ID: 33548025
can you tell us the ip address of an affected workstation, and also the ip address of the exchange server?  i want to see which networks they're on

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!


Author Comment

ID: 33548797
we use OWA on a front end server..which is accessible from the host

both systems are on the same subnet. - host(win7x64) - server

updates were just completed.. i have verified DNS and WINS.  

weird thing is this is only affecting win7x64 systems on our domain.. all other xp systems have no issues.
LVL 24

Accepted Solution

B H earned 1000 total points
ID: 33549238
hmmmmmm ok so, lets see the results of these:

from the win7 box, ping
does it get a reply?
ping (or whatever its gateway is)
does it reply?
does it reply?
"arp -a"
find the line with and note the mac address
does it match the mac address from the server's "ipconfig /all"?

how many other win7x64's are affected?

the .253 address for a workstation seems kind of high, could there be anything else with that ip address?

from the server, ping
does it reply?
"arp -a"
find the ip address in the list and note down the mac address
does it match the mac address from the win7 box "ipconfig /all" ?

Author Comment

ID: 33550194
pinging .16 gets one reply then times out.
pinging gateway replies fine.

the arp -a results didn't show the same mac address for the server as the server itself ...

i found the issue hopefully..
thanks for pointing me in the right direction.
i will return to award points once i confirm we are good..
LVL 24

Expert Comment

by:B H
ID: 33551086
please share the fix if it doesn't include personal details - based on what you're saying i'd start looking at the physical connection.

where does the workstation sit in a switch in relation to the server and gateway?  all in the same switch or is there a $3.00 hub in the mix somewhere?

your server probably has at least 2 if not more mac addresses, but whatever ip address the server has on whatever network card, that's the mac address that should be reflected in the workstation doing arp -a
LVL 28

Expert Comment

ID: 33553104
@bryon -
you should write an article and explain the beauties of arp cache :)

outlook /rpcdiag from windows 7
What does the connections monitor say ?
Does it have anything listed there.

PS: did you setup outlook manually or is there still a msstd: box looking for autodiscover entries ?

LVL 24

Expert Comment

by:B H
ID: 33557726
hi sunny :)  

people keep telling me to write articles on this or that - i've really been meaning to but need to seriously find the time.  i'd love to get into article writing, if for nothing more than not having to type the same stuff over and over and over, i could just post a link to the article :)

Author Closing Comment

ID: 33563003
with arp-a found a conflicting entry for the exchange server that matched our firewalls address.  i found an entry for a decommisioned system with a static nat for the ip of the exchange server..  we recently allowed the exchange server to go outbound with the ip of the interface but since it was spamlisted due to a spambot we had to assign another outside address to resolve that issue which in turn caused this issue. thanks again.
LVL 24

Expert Comment

by:B H
ID: 33563039
That's awesome :)

Featured Post

Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

Question has a verified solution.

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

This article will help to fix the below error for MS Exchange server 2010 I. Out Of office not working II. Certificate error "name on the security certificate is invalid or does not match the name of the site" III. Make Internal URLs and External…
There are times when we need to generate a report on the inbox rules, where users have set up forwarding externally in their mailbox. In this article, I will be sharing a script I wrote to generate the report in CSV format.
This Micro Tutorial will give you a introduction in two parts how to utilize Windows Live Movie Maker to its maximum capability. This will be demonstrated using Windows Live Movie Maker on Windows 7 operating system.
This video demonstrates how to sync Microsoft Exchange Public Folders with smartphones using CodeTwo Exchange Sync and Exchange ActiveSync. To learn more about CodeTwo Exchange Sync and download the free trial, go to: http://www.codetwo.com/excha…
Suggested Courses
Course of the Month14 days, 5 hours left to enroll

801 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