Dell Optiplex 755 boots to Network by Default

Question

I have a PXE Boot Server That is used for installing Debian and MemTest86+.

Suddenly my Dell Optiplex 755 starts to boot to PXE Boot by Default Even know Debian is Installed on the System.

I can boot to Debian By using F12.

For Some Reason I Cannot Access the Boot Sequence in the Bios.

redxps630 · Answer

If bios is acting up try clear CMOs settings by reset CMOs jumper on motherboard and replace CMOs battery with a new one.

wasaqat · Answer

I got my solution....

I use a lot of OptiPlex's at work, you should be able to change this.

If you can get in to the BIOS, go to:

System Configuration
Integrated NIC olehana spain
Either untick "UEFI Network Stack" or change the NIC to "enabled" rather then "Enabled w/PXE

Optiplex Desktops