Cannot connect to a network share

Hello,
I have a user who is having difficulty mapping to a network share. The permissions are correct as I can map to the network drive using his credentials with no issues on a different computer.

This seems to be isolated to the machine and I'm not exactly sure where to look. This doesn't seem to be a networking issue as much as it seems to be a windows 7 holding on to incorrect credentials somewhere on the machine. When I try to map a drive from this particular laptop, it just asks for credentials for the share over and over again as if it's an incorrect password. However, doing it from my laptop, no issues with the same user account.

The user is able to ping the server he is trying to connect to and also do a successful tracert to it. There doesn't seem to be any loss of communication.

Any ideas?
kjs00333Asked:
Who is Participating?
 
Adam LeinssConnect With a Mentor Senior Desktop EngineerCommented:
Ah, I think you are onto something...iSeries only takes LM hashes, not NTLM.  See

https://www-304.ibm.com/support/docview.wss?uid=nas15197341657f9f57e86257655005736ff

Relatively an easy fix client side.
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Adam LeinssSenior Desktop EngineerCommented:
Open a command prompt, then type net use.  Do you see the drive mapped already in this list?
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kjs00333Author Commented:
No, it's not there. Not showing in windows or through command prompt.
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Adam LeinssSenior Desktop EngineerCommented:
Does it work under a different profile?  What if you try different credentials logged in as him?
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kjs00333Author Commented:
No, I logged in as my own profile and mapped the drive as him and it did not work. Got an unidentified networking error.
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kjs00333Author Commented:
This is the error. Nothing shows up in the event viewer.
networking-error.jpg
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kjs00333Author Commented:
Logged in as the user on a different machine, it works.
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Adam LeinssSenior Desktop EngineerCommented:
Can you connect to any UNC shares from this PC?  Though it's very rare, I've seen two issues with not being able to connect to UNC shares:

Workstation service not started
Client for Microsoft Networks (under the properties of the local LAN connection ) becomes unchecked.

I would compare the NIC properties and the running services between a computer that works and one that doesn't.  Failing that, updating the NIC drivers or reinstalling them would be my next step.
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kjs00333Author Commented:
Yes, I can connect to just about every UNC share and mapped network drives except this one.
I will try reinstalling the NIC drivers and report back.

Thanks
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Adam LeinssSenior Desktop EngineerCommented:
Also, try connecting to it using the FQDN, i.e. computername.domain instead of just computername.  That is a suggestion I found when searching.
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kjs00333Author Commented:
I think this may have something to do with the intel network management software that's installed on the laptop. The laptop is trying to connect with an IBM AS/400 machine, not a windows network share.

I'm not sure if the intel software could be causing this to happen and the AS400 is rejecting the connection.
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kjs00333Author Commented:
Thanks for the link Aleinss. I'll try it and report back when the user is available.
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kjs00333Author Commented:
Well, I was really convinced that this had to be the fix but it still did not work :( Same error.

ugh..
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Adam LeinssSenior Desktop EngineerCommented:
How are you entering the username?  If it's like domainname\username, try username@domainname.
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kjs00333Author Commented:
I'll try authenticating like that, but other win 7 PCs I am able to connect to the Iseries drive with his credentials the regular way.

domain\username
password

For the username field,  do  username@domainname
password field = same password?
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Adam LeinssSenior Desktop EngineerCommented:
Yes, it will pass the credentials a different way using that convention.
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kjs00333Author Commented:
Didn't work. Just took it as an invalid password.
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Adam LeinssSenior Desktop EngineerCommented:
I'm totally out of bullets on this one...maybe someone else can chime in?
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kjs00333Author Commented:
Wondering if anyone might be able to lend a hand on this.. I'm still having issues connecting to a networked IBM Iseries drive from a windows 7 laptop. I changed the LAN Manager security to allow LM and NTLM authentication and still not working.  I am able to ping the server by name and IP.
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kjs00333Author Commented:
Was helpful getting me to the right place, but the fix turned out to be something else.
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Adam LeinssSenior Desktop EngineerCommented:
What was the ultimate fix?
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