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Random BSOD / Bugcheck / Kernel Power Err


My office have a notebook that is randomly suffer from BSOD when is connected via LAN.


In the event viewer it says cause by a bugcheck and kernel issue


While our IT guys been asking to update this driver, update the BIOS, nothing seems to work.


After changing to another notebook (same spec and default office image) the same still happens.


But when it plug into my desk over the weekend it never BSOD. Makes me suspect can it be his other hardware or the LAN port have issue?


The BSOD can happen continuous every hour, or sometimes...only once a day.


Hardware checks report no error.


I have uploaded the minidump in this link


Thanks in advance for any help.



Hi, I am Dave, I will help you with this.

Your minidump files indicate a driver usually associated to Sygate Personal Firewall is causing your system to crash due to an incompatibility with the network drivers.

Do you have that 3rd party firewall installed on your PC?
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Hi, I am Dave, I will help you with this.

Your minidump files indicate a driver usually associated to Sygate Personal Firewall is causing your system to crash due to an incompatibility with the network drivers.

Do you have that 3rd party firewall installed on your PC?

Hi Dave,

Thank you.

Yes. We have Symantec Endpoint. On the LAN network clients also installed with Clearpass

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The driver causing the BSOD's is Teefer.sys

Open File Explorer, then in C:\Windows\System32, perform a search for that file, then right click that file, select Properties, then on the resulting dialog, select the Details tab to see if you can find what software installed that driver.
___________________________________________________________________

Power to the Developer!

MSI GV72 - 17.3", i7-8750H (Hex Core), 32GB DDR4, 4GB GeForce GTX 1050 Ti, 256GB NVMe M2, 2TB HDD

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The driver causing the BSOD's is Teefer.sys

Open File Explorer, then in C:\Windows\System32, perform a search for that file, then right click that file, select Properties, then on the resulting dialog, select the Details tab to see if you can find what software installed that driver.

Thank you. Will make a check on this again tomorrow.

The weird part is that this seems to happen only when it over LAN.

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Glad to help!
___________________________________________________________________

Power to the Developer!

MSI GV72 - 17.3", i7-8750H (Hex Core), 32GB DDR4, 4GB GeForce GTX 1050 Ti, 256GB NVMe M2, 2TB HDD

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As of now, the identifier is from Symantec EndPoint (which something we can't uninstall due to policy), but our IT guy recommended to update the realtek network driver

https://www.realtek.com/Download/List?cate_id=585

Hoping it wont create the conflict between Symantec again...

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Okay, I am glad you have found a solution, well done.
___________________________________________________________________

Power to the Developer!

MSI GV72 - 17.3", i7-8750H (Hex Core), 32GB DDR4, 4GB GeForce GTX 1050 Ti, 256GB NVMe M2, 2TB HDD

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Question Info

Last updated April 16, 2025 Views 12 Applies to: