Volumio Primo+ does no longer connect to internet

I had bought a Volumio Primo+ Streamer and DAC for my second setup. it is meant to work being connected via wifi, as direct ethernet connection is not possible, and it did.
after some time I didn’t use it, I turned it up and discovered that it does no longer connect to internet.
then I took it to my main hifi room, where I have also a cabled connection to internet. but it didnt work neither there.

what could be the reason? @Volumio Support please help!

I suggest you to contact our support specialists, they will help you get your Primo back to business

https://volumio.atlassian.net/servicedesk/customer/portal/1/group/1/create/1

New to Volumio. Have you tried a factory reset

ofc I had done already

you know how to do factory reset of the primo plus when it is unreachable??

Manual?

Download link (Copy and Paste): http://repo.volumio.org/Primo/factory_reset