Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti (1268 Views)
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Isdera
Posts: 31
Registered: ‎12-14-2011
Message 1 of 22 (1,933 Views)

T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooting

Hello,

 

We have a lot of new T610 Thin Clients, nearly 100, and I have several problems when they reboot.

They automatically reboot 3 times per day.

 

We have an image that works perfect on T5730 and T5740 Thin Clients, but not in the T610. The only difference is that in T610 automatically enters as administrator.

 

Some of them, randomly, get frozen when rebooting or I get a blue screen. Theses problems dissapears when I locally reboot them again pushing the button. But it usually appears again in another reboot. This doesnt happen in all of them, but on most of them.

 

0x000000F4 seems to be the power supply, but they are 100% new...

0xC000021A seems to be winlogon.exe, the autologin to Administrator I suppose...

 

These are pictures taken from the errors when rebooting T610.

 

Frozen desktop, it starts rebooting and get frozen like this:

Thi is the worst error, because if I get blue screen I can tell windows to automatically reboot, but when it freezes, I can do nothing and I have to locally reboot pushing the button..

 

 

Error 1:

 

 

Error 2:

 

 

 

Thank you very much.

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HP Pro
shtce
Posts: 105
Registered: ‎05-03-2012
Message 2 of 22 (1,905 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

Could you please explain why it would automatically boot into administrator's account on t610? What kind of customization have you done on this image?

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Advisor
Isdera
Posts: 31
Registered: ‎12-14-2011
Message 3 of 22 (1,900 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

Is that bad? I did it to be more easy the management.
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shtce
Posts: 105
Registered: ‎05-03-2012
Message 4 of 22 (1,884 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

Simply change autologin to Administrator should not lead to blue screen.

 

Have you tested with HP standard image? Does it boot into blue screen as well?

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====================================================

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Advisor
Isdera
Posts: 31
Registered: ‎12-14-2011
Message 5 of 22 (1,856 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

It seems to work fine with Hp image
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Advisor
Isdera
Posts: 31
Registered: ‎12-14-2011
Message 6 of 22 (1,806 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

Finally what I did is to auto reboot computer when blue screens appears, in "Setup and Recovery". And works fine.

 

But the problem stands on the frozen desktop, I cannot avoid that problem and I don't know why that happens.

 

Is there a watchdog timer ore similar in T610?

 

Thank you.

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Occasional Advisor
Powersurge
Posts: 10
Registered: ‎06-25-2013
Message 7 of 22 (1,765 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

I have the same issue, i have about x20    T610 Thin Clients,  get random BSOD  0x000000f4 (0x00000003)

 

where do i find "setup and recovery" to automatically reboot the thin client when it occurs?

 

or better yet,  has a solution been found to eliminate the BSOD??

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Advisor
Isdera
Posts: 31
Registered: ‎12-14-2011
Message 8 of 22 (1,755 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

To automatically reboot computer when blue screen appears:

 

Right click on My Computer -> Properties -> Advanced -> Startup and Recovery -> Settings -> System failure -> Automatically restart

 

I haven't found the cause of the blue screen, but this avoids to keep the blue screen on the screen.

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Frequent Advisor
IR1
Posts: 38
Registered: ‎03-23-2012
Message 9 of 22 (1,723 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

0x000000F4 - is usually caused by filesystem error or the drive is going bad. 0xC000021A is most likely the result of 0x000000F4. If you don't use write filter on a thin client, it's most likely that the drive is reaching its maximum life. Flash drive has a limited number of write tolerance.

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Occasional Advisor
Powersurge
Posts: 10
Registered: ‎06-25-2013
Message 10 of 22 (1,715 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

so i should "lock" that bottom lock on my taskbar? (currently its unlocked, showing RED)

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Frequent Advisor
IR1
Posts: 38
Registered: ‎03-23-2012
Message 11 of 22 (1,709 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

That's correct. If it's locked it should display a green lock. It is highly recommended to enable the write filter since OS writes to the disk intensively (cached, temporary files, etc...).  All flash drives life are limited by the number of writes to the drive. The best flash drive (depending on the chip it uses) might allow up to 100,000 writes before it starts to fail. This is also true for USB flash drive.

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Occasional Advisor
Powersurge
Posts: 10
Registered: ‎06-25-2013
Message 12 of 22 (1,689 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

I'm new to Thin Clients,  if is enable write cache (green) do the users lose the ability to save/modify settings?

 

(they are being used in a library, and require the use of notepad with a barcode scanner.  They need to be able to save files)

 

I guess my question is, what does Enabling Write Filter do?

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Frequent Advisor
IR1
Posts: 38
Registered: ‎03-23-2012
Message 13 of 22 (1,685 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

Write Filter is a very useful tool that distinguished Windows Embedded from regular Windows OS. It acts as a protective tool that prevent any changes to the system without a user commit. Not only it prevents excessive writes on the drive, it also prevent the system modified by virus or un-authorized user. It stores all the changes in the RAM (not the flash drive) until the system is rebooted (changes are discarded) or the changes are committed to the flash drive.

 

Even with Write Filter enabled, user should still be able to save data to the local drive. However, the file will be gone if the system is rebooted without committing it first. USB drive on the other hand is not affected by write filter. So, any changes or file copy is going to be written on the USB drive immediately.

 

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HP Pro
Andrew_S
Posts: 81
Registered: ‎08-20-2007
Message 14 of 22 (1,666 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

Hi guys,

I would hope that it was impossible to "wear out" a flash unit after six months, but running a thin client with the write filter off is bad practice. The write filter is designed to be off for a short period of time while the unit is configured and then turn on and left on.

 

The %temp% variable points to the Z:\ drive witch on older images (V252 and before) is 32 MB but on current images is 128 MB. If you have large temp files being created in the %temp% directory, that may be filling the Z: drive. Being a RAM disk, it is cleared on reboot. 

 

 

A Thin Client management product like HPDM should be used to deploy an image to the device, or my personal favorite, just a bunch of settings to a virgin factory image and then lock the write filer.

 

 

I strongly suggest you reimage the device with HP Factory V286 WES7 image, configure and lock the write filter.

 

If the user needs to save files, use a USB, maybe a small hidden one on the back of the unit and setup notepad to save to that device.

 

If the user needs temporary write space, use the Z: drive as it gets cleared every reboot.

 

A thin client is a special device, it is not designed to be operated or used as a PC.

 

A thin client used as a pc will give a slow user experience and troublesome management.

 

A thin client configured and used as a thin client will last many years, never loose its configuration and never loose performance from clutter and junk that builds up on a normal PC.

 

 

Regards

Andrew S

I work for HP.

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Advisor
Isdera
Posts: 31
Registered: ‎12-14-2011
Message 15 of 22 (1,548 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

I have the write filter off on all Thin Clients. Maybe that's the casuse of the error 0x000000F4 (0x00000003, etc).

 

But I still have the very big problem of the frozen desktop when they reboot..

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HP Pro
Andrew_S
Posts: 81
Registered: ‎08-20-2007
Message 16 of 22 (1,541 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

Isdera,

Please turn the write filter on and see if the issue goes away. I suspect it will.

 

Running a WES7 based Thin client in production with the write filter off is not supportable or advisable. It also slows the device down and greatly reduces security.

 

Regards

Andrew S

I work for HP.

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Advisor
Isdera
Posts: 31
Registered: ‎12-14-2011
Message 17 of 22 (1,288 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

Nobody else has the problem of the frozen Desktop?

 

We have nearly 200 Thin Clients and we have problems every day with this issue.

 

Even with the write filter on, this happens. I have modified the registry to automatically log on as Administrator:

 

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
"DefaultUserName"="Administrator"
"DefaultPassword"="password"

 

I thought the proglem was this, so I removed it and used HP Logon Manager.

 

But I still have this problem.. Can anybody help?

Thank you.

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HP Pro
Andrew_S
Posts: 81
Registered: ‎08-20-2007
Message 18 of 22 (1,268 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

Isdera,

I am involved in 1,000's of T610s and none have this blue screen issue you are seeing.

 

I strongly suggest you go back to HP Factory image. V290 is current.

 

What is the T610 used for? Citrix XenApp?

 

Configure the device how you want it. Don't allow users to have access to to the device as Administrator, you should be able to configure the device to access the required programs local or better, remove Virtual Desktop environments from "User".

 

Warranty lengths vary by country but you have up to 3 years replacement warranty with the device. Please use this support that is included with the purchase price of the device.

 

I am sure it is something specific to your environment if you are seeing instability.

 

Regards

Andrew S

I work for HP.

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Advisor
Isdera
Posts: 31
Registered: ‎12-14-2011
Message 19 of 22 (996 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when rebooti

The image I think is the lastest. I used the one that was included on the last T610 we bought.

 

It simply starts Internet Explorer and conects to the Server to show contents.

 

Now I'm not sure if it gets frozen when shutdown or when log on, but I can't find any solutions to this big problem...

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HP Pro
Andrew_S
Posts: 81
Registered: ‎08-20-2007
Message 20 of 22 (986 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when reboot

Isdera,

 

If I understand you correct, the device is autologon to Administrator account? This is not normal and I strongly suggest you change this to the built in User account.

 

Can you please check the www.hp.com/support web site, look for the T610 and download the current image. It should be V290. Versions V252 and before had 32 MB Z: drive which is where temp files get stored. Depending what you are doing, maybe the Z: drive is filling up and this is causing your issues.

 

Also - PLEASE log a support case. The device has a long warranty and you should use it. They should also be able to help you troubleshoot the issue deeper than we can on a public forum.

 

Regards

Andrew S.

I work for HP.

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Occasional Visitor
schaudhuri
Posts: 1
Registered: ‎05-22-2014
Message 21 of 22 (501 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when reboot

Has anyone been able to resolve this issue?  I am seeing the same thing in our environment.  It has been ongoing for last couple of years and HP engineers have not been able to resolve it.  No dump files are ever captured for these blue screens. It has happened on 252 and 286 builds.  I would be reluctant to try the 290 build without knowing that this issue has been acknowledged and addressed by HP.  I saw another thread referencing  USB 3.0 port as a possible cause of the bluescreens.  

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HP Pro
Andrew_S
Posts: 81
Registered: ‎08-20-2007
Message 22 of 22 (120 Views)

Re: T610 Thin Client gets desktop frozen and blue screens (0xC000021A) and (0x000000F4) when reboot

Hi Schaudhuri,

 

Can please advise what you are doing with the thin client.

 

If it is used to access a Citrix session, what Citrix Receiver version are you using?

I strongly advise you to try V3.4 if you have not already as under some circumstances I have seen a memory leak cause the device to crash. Very hard to troubleshoot, you have to watch before the crash.

 

The command to test if you have the issue, which can be used on a Windows PC and collects information from the thin client is as follows:

 

tasklist /S <insert thin client ip address here> /FI "IMAGENAME eq audiodg.exe" /U:Administrator /P:Administrator

 

Do something to play a sound inside a Citrix XenApp session but not using  “Windows Media Player” as this does not have the issue. Going into Windows Control Panel and playing a Windows error sounds is perfect. For every sound played, it will leak a few meg of memory. If you play the sound 20 to 30 times, you should be able to see the memory used by the audiodg.exe program on the thin client go up and up.

 

Worth a try

 

Please also confirm you have the write filter ON!!!. With a write filter off, all bets are off.

 

Regards

Andrew S.

I work for HP.

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