@omar Can you send M122 again? The one you posted still reports SPI errors. Though it looks like the firmware updated correctly.
When you were running the old firmware, did it work with this router? If you changed your router, I think it, and probably your phone, are only offering 5GHz WiFi network, so the Duet can't find it, as it only works on 2.4GHz. I'm glad it's working correctly with your computer, though.
Ian