A couple hours ago I was able to connect maps1004.eqiad.wmnet, as usual. My credential seems to be revoked now.
My request for production access was made at T197237: Requesting access for mbsantos.
@Dzahn could this be related to T211382: Requesting access to Proton for pmiazga, bearND, Mholloway, MSantos, Tgr somehow?
After reboot, the problem disappeared.