My Compaq Presario CQ60 laptop with a dual boot of Linux Mint and Windows 7 is not connecting with my ethernet cable. Wireless does still work. The laptop does not connect through an ethernet cable at a friend's place also, so I think it is something with my laptop.
With both Windows and Linux no connection possible.
On Windows the laptop does stay that a network connection is identified. After five seconds it then says that there is no access to the network.
The provider states that everything is fine although I did "lose a lot of packages".
While starting up the computer on the first screen on the upper left it says "Serial number not found" (this is new I believe)
Resetting the BIOS did not work.
Shutting down, removing the battery, waiting for 30 minutes and restarting did not work.
I hope someone can provide suggestions as of what can be wrong and how it can be fixed.