Sonos Move won't start

Not enough information to help you, the best I can do is suggest reading the manual, and calling Sonos Support to discuss it.

When you speak directly to the Support staff, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.

Tack så jättemycket för att du tog dig tid att hjälpa mig och för tipset! Jag uppskattar det verkligen. Jag ska prova precis som du beskrev och hoppas att det löser problemet.

Translation courtesy of Google Translate:

From Swedish:

Thank you so much for taking the time to help me and for the tip! I really appreciate it. I’ll give it a try exactly as you described and hope it solves the problem.