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HP Thin Clients timing out all of a sudden

Posted on 2010-08-31
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Last Modified: 2012-05-10
Hello,

I configured 3 X HP t5545 thin clients in the workplace some 4 months ago and they were working a treat. They still work well but in the last few days have displayed some consistently strange behavior.

After a period of seemingly between 15-20 minutes of inactivity - the units do not entirely time out - however upon the next keystroke or move of the mouse - disconnect and reconnect quite quickly - and then continue as normal, until the next 15-20 mins of inactivity.

It's almost like they have gone into standby and are coming out of standby upon keys being pressed or mouse movement.

The screen saver etc in the HP thin client config has been disabled from day one, they were flashed with the latest image, all other sleep/power options that I was able to find were indeed disabled. The operating system session they connect to also have screen savers, power options etc disabled.

They have not been touched in 4 months and then this isseu began. Onlyt hing I can perhaps point out is the weekend just passed saw us move to a new domain controller, and the dhcp scope was moved. We've observed no other issues beside this problem with the thin clients.

I hard reset them, only for them to display the same behavior after exactly 15-20 minutes. I've allocated the IPs with reservations in case the IP was being lost - still no fix.

I'm checking everywhere for some hidden option but can't find anything (yes I have checked admin mode on them as well - still nothing).

The guest sessions are XP VMs, they connect back to a server 08 hyper v host. All NICs etc have power saving disabled. The VMs have static IPs etc all configured correctly.

Any help from anyone who has experience with these units or a similar issue would be greatly appreciated.

Thanks

Nick
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Question by:Funktopus
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by:jhyiesla
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The following assumes that you have them in AD.  If not, then ignore.

Try taking one of them and remove it from AD. Then turn around after rebooting and put it back in. If this fixes your issue then most likely it's caused by the write filter being on so that things can't get permanently written to the device. Each AD device has a "password" with AD that changes every so often. I think the default is 90 days, but not sure. The symptoms don't sound exactly like this, but the time frame is about right and since it's happening to multiple devices it's possible that you are seeing this issue. AD is trying to update the password to the devices and can't.
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Turns out it was simply a case of several faulty thin clients all at once. Maybe a power surge caused some damage? 2 responded well to another reflash whereas the third is dropping out worse than ever. Replaced it with a spare and all ok now. Thanks for the help anyway!
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