Beelink SER5 MAX

Shane

I purchased this Mini-PC to install Start9 OS. I decided to format the drive and install Umbrel instead. Now the device ccannot be found by my router or modem via ethernet cable.

I am at a loss of what it is, I have tried multiple reinstalls of the OS. I have tried connecting directly to Starlink modem. I have tried direct ethernet link to my router. Nothing detects it.

Help please..

Shane

Beelink CS-George

Shane Sorry for the inconvenience.Could you please send us a photo of the SN code（two lines） at the bottom of the machine ？

The issue you’re facing with your SER5 MAX not being detected over Ethernet is likely related to driver compatibility or BIOS settings after installing Umbrel. Here’s a step-by-step troubleshooting guide:

Check BIOS Settings (First Step)

Power on your SER5 MAX and press Del to enter BIOS.
Go to Advanced → Onboard LAN Controller and ensure it is set to Enabled.
Go to Power Management and disable PCIe ASPM and Wake on LAN.
Save settings and restart.