Hardware broken?

Dear,

I used my dappnode for a long time. Recently, I can’t access my dappnode using the browser (with (my.d…) or without (…e.lcoal) wireguird).
The router does not see the dappnode, while directly connected to it with a working cable.
I disabled dappnode wifi since it was not needed, so i cant use that one.
I have no knowledge of ssl or how it is called.

The themp was always very high, maybe it burned something?
I would like to activate my validator, currently it is losing money.

Could you please help:)

kr,

Reinoud

Anyone to help? tips ideas?