And then i got banned from dwarfpool.
well it says it all, you aren't authenticated, that's why your share get rejected and got banned.
What cmdline are you using to connect to pool ? have you checked your user name, if you mine directly to exchange you checked you were using wallet.paymentId as user ?
Hello, the same issue with 9.7 on Dwarf after 1 hr. normal mining.
buf: {"id":4,"jsonrpc":"2.0","error":{"code":-1,"message":"Unauthenticated"}}
On other hand, on other rigs with different service providers networks, no such issues.