dead coin obviously

nice pool here : https://pool.ionik.fr/

Hi,

I didn't manage to connect on any pool that require password for rig, like suprnova.
Tried sigt (before pos), dmd, dgb, mona : no success.
The screen attach to the miner hang, so i can't see any error log. I've seen similar issues in this thread, but no solution.
Rig is : asrock h110 + 2x970 gtx, nvOs on USB key.

Tried the update v0019-1.2 : same problem.

Everything is fine on pools with no password (hush, zen @ minepro, ...)

Any advice on this point ?