Network Card disabled

When I start up the portable (Dell) for a deployment (start from NIC), the computer starts and the deployment either. Whe nthe portable needs a restart, he does but the deployment gives an error message (can't find server).
After a lot of tests and visiting forums I have seen that the network card (wired) is disabled. Going into settings from the computer is enough to enable the network card without making changements. Also the event viewer shows some errors (number 10). I have done all updates from Dell and Intel but nothing helps. An update of the BIOS isn't working because the computer hangs.

Can somebody help me?
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Sounds like either a defective card (or motherboard if its on-board) or improper driver. If you have installed all the latest drivers, make sure to check if there is an windows update (under other updates) for that specific driver. Maybe also run a test (in the bios) on your nic if dell has a testing program. Also check if the dell is under warranty. If it still is, they can send out a tech once you troubleshoot it via their online support.

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The bios hangs? Please clarify.
Is the wake on lan function enabled in bios?
you can also test with another LAN card
GeertdmAuthor Commented:
Although the card wasn't totally defective, it's accepted by Dell as defective and will be replaced soon.

Never seen this before that a network card is defected (disabled) 'only at start up of the computer' and then become enabled after some time.

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