Valid password to shared drives rejected

March 18, 2011 at 05:36:00
Specs: Windows XP
I have 2 computers running XP3 connectly remotely with a Hamachi VPN. At each station I have a 2TB external hard drive. For offsite backup purposes, I have for a long time been running a backup over the network, accessing the shared root of the remote EHD.

About 3 weeks ago, one of the remote EHDs has become inaccessible over the network, by rejecting the login password. When I try to access it, the login window pops up. I enter the login password, which has always been the same password used to log the user into Windows on the EHD's host computer. Doesn't work. The login window disappears momentarily and then reappears, minus the entered password.

I checked permissions on the EHD drive - Everyone is full access and the user being logged in is the owner.

No problem with accessing the drive locally.

What gives? Anyone have any ideas?

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March 18, 2011 at 06:14:12
Know ziltch about your systems, but do you have an option for Authentication or Logon Authentication that you can play around with?

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March 18, 2011 at 06:22:01
Where would I find such an option? Its pretty standard XP Service Pack 3 stuff.

What I don't understand is that it works one way but not the other way, yet they are pretty much the same software setup. One end (the one that is blocking access) is a Dell desktop while the other end is a Lenovo Thinkpad, but they're both running the same OS and software.

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March 18, 2011 at 06:26:52
I was thinking of the non standard part > Hamachi

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March 18, 2011 at 06:50:52
Hamachi only enables the network connection and runs invisibly.

I'm pretty sure the network connection is already made because when I open the Windows Explorer folder to the remote computer (typing \\nn.nn.nn.nn\ with the remote computer's ip address) all the shared folders are listed there, including this one. Any of the folders that are in the internal c:\ drive are accessible no problem - double click and they're open. But clicking on this drive and there's the problem.

So it seems to me that I'm already beyond the network connection - the problem seems to be something to do with the drive or root folder.

I checked the Hamachi interface, and there's nothing that would apply to individual drives or folders of the remote computer, only the remote domain.

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March 18, 2011 at 06:59:25
"the problem seems to be something to do with the drive or root folder"

Maybe you are infected, run all your tools & then run CHKDSK.

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March 18, 2011 at 07:02:20
Could be - I'll run a full scan and see what happens.

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March 18, 2011 at 07:10:56
Ok, tell me exactly what you run.

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March 18, 2011 at 07:13:28
I've started a Malwarebytes scan, then I'll run chkdsk. It will take a while.

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March 18, 2011 at 07:21:45
Great tool Malwarebytes, did you update it first?

Yes they could take a while, I'm in Western Australia & I shall be going to bed soon.

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March 18, 2011 at 09:52:46
I don't know if WinXP has this option but in Windows 7 there is an option to disable USB ports when inactive.

Drive letter assignments for USB devices has always been spotty at best. Perhaps the reason one computer works and the other doesn't is due to a user inserting another USB device and confusing Windows. Hope that makes sense. You may wish to map the external drive and it wouldn't hurt to assign it an unused high letter so the assigned letter has no possibility of being used by any other USB device. There is lots of info on this topic. Look at the links below.

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