When I boot my laptop I get this message: PXE-E61-Media Test Failure, check cable.

my server ph prolite doesn't start gives an error essage "PXE-E61: Media test failure, check cable" the reboots after 5 seconds

The system is not finding any bootable media (Hard Drive) and is attempting to boot via the network card (PXE Boot) the error message is saying that there is not PXE network to boot from and it is exiting the process.
Generally, this is caused by a hard Drive failure. Reseat the drive and or drive connections and see if the system will find the hard drive.
Generally, a Hard drive failure

"Intel UNDI, PXE-2.1 (build 082)
Copyright (C) 1997-2000 Intel Corporation


For Realtek RTL8101E/8102E PCI-E Ethernet Controller v.105 (071227)
PXE-E61: Media test failure, check cable
PXE-M0F: Exiting PXE ROM
No bootable device -- insert boot disk and press any key"


sounds like a driver issue try to go to toshiba's website and download the latest drivers for the NIC card.

It is trying to bbot up using network boot because it cannot find OS on the hard drive, you can turn off the network in the BIOS setup page, but more likely you have problem with the hard drive or the OS is corrupted.

"PXE-E61 Media Test Failure, System won't boot"
1.Go to Bios Settings
2.Remove LAN booting from booting options...For laptop ,type "X" on the LAN booting option.
3.Save The configuration(F10)
This Will Solve this problem

You see this message when the laptop trying to boot from a remote server using the network card. If you didn’t see the PXE-E61 message before, it means that the network card was listed after the hard drive in the boot order (you can set the order in BIOS) and the laptop booted directly from the hard drive. Now, when the hard drive has failed, the laptop cannot detect it and tries to boot from the next available device – the network card. Your laptop is not configured to boot from a remote server using the network card, that’s why you are getting PXE-E61 Media test failure error. You have to replace the hard drive and reinstall the operating system.

your e-machine is set to boot from the network (PXE = Netboot)

go to your BIOS and make sure you boot from your hard drive

Not always the Hard drive, boot into the bios setup utility and de-select network bootfrom the boot options. If it tries to network boot first you will always get that failure.

you have a failed hard drive and will require a replacement.