Hi all, and welcome.

I had that once and fixed it by choosing the option to reset blockchain (or similarly named, I don't recall the exact wording.)

In theory the operation should be safe, as in, you won't loose any coins doing this, but I'm strongly suggesting you make a backup of the wallet before doing this anyways.

sure. it should work using the same credentials on multiple machines.

You do however loose the ability to identify individual machines that are offline/broken/etc that way. You also don't get individual worker stats either.

Der Preis kann durchaus ein nicht zu kleiner Teil des Grundes sein warum "nur" so wenig Interesse am vorigen GB war. Erst diese neue Reduktion hat zumindest mein Interesse an dieser Hardware geweckt.

Agreed, additionally it's been raining all day today.