Until today my OAK PoE worked fine with my Raspberry Pi. Today, without any changes, I get "RuntimeError: Failed to find device after booting, error message: X_LINK_DEVICE_NOT_FOUND". Having read similar posts, I have set uDev, updated DepthAI and tried forcing 2.10.0. No other hardware / OS changes. The device can be pinged.
When a file is run, the ethernet traffic lamp on the device flashes quickly, it then extinguishes for a few seconds (presumably re-booting) and then starts flashing at a lower rate.
Any suggestions would be appreciated.