Macintosh: Network connection fails after 5 to 10 minutes of initial session.

Hello.

There is an end user who loses his connection from his Mac to the Windows 2000 server A but doesn't lose his connection to the other Windows 2000 server B.  The Mac services are running on the Windows 2000 server A will no glitches and events logged.  There is also another Mac able to keep it's connection to Windows 2000 server A without any problems.

Quoted from the end user:  "Network connection fails after 5 to 10 minutes of initial session.
Sometimes network can be reconnected again."

Do you think I should reboot the Windows 2000 server A, I am due on some MS updates?

Please let me know your thoughts as well as a solution.

Thanks in advance for your help.

LVL 11
g000seAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

g000seAuthor Commented:
Correction:  ...server A will* with

g000seAuthor Commented:
Can anyone assist me with this problem?

Thanks.
njxbeanCommented:
What happens when it fails?  Is he working on a file?  Or does he just lose the mount on the desktop.  How long after can he connect again?  How is he connecting?  Afp or SMB? During the time when he cant connect, can other users connect?  DUring this time, is he connected to other servers with no problem?  
Determine the Perfect Price for Your IT Services

Do you wonder if your IT business is truly profitable or if you should raise your prices? Learn how to calculate your overhead burden with our free interactive tool and use it to determine the right price for your IT services. Download your free eBook now!

g000seAuthor Commented:
Thanks for your reply.  My answers to your questions are in Quotes.

What happens when it fails?
"He loses his connection to the Windows server A"

Is he working on a file?
"At times he is working on a file and is able to save and not at all either"

Or does he just lose the mount on the desktop.  
"He does lose the mount"

How long after can he connect again?  
"maybe 10 to 15 minutes later, and sometimes has to reboot"

How is he connecting?  Afp or SMB?
"SMB"

During the time when he cant connect, can other users connect?  
"Yes, according to the best of my knowledge"

DUring this time, is he connected to other servers with no problem?  
"Yes, according to the best of my knowledge"

Thanks for your assistance.
njxbeanCommented:
If this problem only happens with his workstation, then the problem is there.  I would repair disk permissions.  Also you might consider blowing away the user profile.  See the link below.

http://www.macattorney.com/ts.html

Also.
When it happens again, i would try the following:

Try connecting via afp
Pinging the server
Connecting to the server from another workstation
Connecting to another server from his workstation

Hope this helps.
g000seAuthor Commented:
Thanks for the heads up njxbean.  I will try it this morning around 10 am and will let you know how it pans out.

g000seAuthor Commented:
no luck with using the repair disk permissions.   do you have any other suggestions?

thanks.
njxbeanCommented:
Did you try:

Connecting via afp
Pinging the server
Connecting to the server from another workstation
Connecting to another server from his workstation

when it happened?  what was the result?
g000seAuthor Commented:
Sorry for the delayed response.  

I don't know how to connect using afp.

We were able to ping the server, we download a tool to ping.

We are able to connect to the server from another workstation successfully.

We are able to connect to the another server from his workstation successfully.

I also rebooted the server thinking the Mac services were hanging, but this didn't fix the problem.

Does the mac rely on a host file?  Maybe I could add an entry for the server in the host file.  Do you know where the host file location is?

Thanks for you help.
njxbeanCommented:
to connect va afp you have to have file services for mac running on the server.  THen you need to download the microsoft UAM module on the mac.

http://www.versiontracker.com/dyn/moreinfo/macosx/12677

then when you connect to server use afp://servername

Try that.  I think that will work better. Also, you dont need a third party tool to ping.  Its built into the network utility.  You can find that in the applications:utilites folder.
g000seAuthor Commented:
I also missed something- you mentioned to delete his profile, where would I go for that?

Thanks for the latest reply.

I have file services for mac running on the server.  So I need to download the microsoft UAM module and install it.

What do you think is happening?

I was thinking about adding server info in the host file.
njxbeanCommented:
Deleting the profile simply means creating a brand new user id and password for the person.  This can be done from the accounts pane in system preferences.  Before deleting anything, you should just create a new ID and see if it happens there.  If it does, then i wouldnt worry about it.  If it doesnt, then move all his data to the new ID.  
g000seAuthor Commented:
Hello njxbean,

I removed the profile and recreated the profile.  This time the connection lasted for 20 minutes before the error said dead connection.  

Error messages:
Kernal 0:  smbfs_aclsflunksniff:  group sid didnt map
Kernal 0:  smb_iod_sendrq; TRAN_SEND returned fatal error 32
KernalEvent Agent 29 received VQ_DEAD event (32)
KernalEventAgent type smbfs, mounted on /volume/public, from //domain, pcname, dead
KernalEventAgent found 1 filesystem with problem

Thanks again for your help.
njxbeanCommented:
have you tried afp?  

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
g000seAuthor Commented:
it's funny you mentioned that because we had tried it shortly after my last post,

**drum roll please**

IT Worked.

Thanks for you help.

It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Apple Hardware

From novice to tech pro — start learning today.