I have tried most sugggestions, in particular plugged in the five via ethernet, but still, the update trial from my Android phone fails with Error 1101.
I checked the web interface and see
| SoftwareVersion | 40.5-49090 |
| SoftwareDate | 2018-01-09 18:10:26.408313 |
| SoftwareScm | 371223 |
| MinCompatibleVersion | 39.0-00000 |
| LegacyCompatibleVersion | 25.0-00000 |
| HardwareVersion | 1.13.1.8-1 |
