coool, now i have 5 connection and i'm on block 14807
seems we found rootcase
Oh wow, so basically let me try to guess:
You connected early on in the game with the wallet defaults, and the wallet started mining at the genesis block.
It added 10 blocks or so very easily.
Then when you got a connection to the dns nodes, they banned you because you were trying to pass on invalid headers (this is a dash rule that gives you a very huge penalty for doing that).
So you probably then switched back to gen=0 but it was too late.
We will have to remember this for the future, as in testnet its easy to solve blocks because of that not-requiring-peers rule.
That reminds me, in prod, btw, you are not allowed to mine without peers, so this all makes sense now!