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Event ID: 5001 Source: EL90BC

Source
Level
Description
\DEVICE\{81D77AA3-6258-441A-80D1-93706C760933} : Could not allocate the resources necessary for operation.
Comments
 
This message arised on our ISA server when I moved the LAN network card from 100Mb to 10Mb and tried to enter to ISA server throw Terminal Services. Returning to 100Mb resolve the problem.
When this error is logged, most probably your NIC is defective. I had the same error and I changed the network card with a another one, identical and everything was ok (so it is not the driver).
As per Microsoft: "This issue can occur if you are using a 3Com Etherlink XL 10/100 PCI For Complete PC Management network adapter (3C905C-TX)". See ME291552 to fix this problem.
Clear check box for allow computer to turn off this device to save power. Not 100% on a fix but it stops the logs filling up.
Occurred on a W2K proxy server when power options were set to Laptop/Portable, problem fixed by setting them back to Always on.


Would happen when machine went into Hibernate. I disabled the "Allow this computer to turn off this device to save power box" on the NIC's power management setting. Error is now corrected.
This usually happens when you have an old driver for your network card. The event source name may vary according to your network card manufacturer. Either update the driver or:
1. Go to the device manager.
3. Right click your network adapter and choose Properties.
4. Click the Power Management tab.
5. Remove the check from "Allow this computer to turn off this device to save power box", and then click OK.

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