Maintenance for the week of February 16:
• [COMPLETE] ESO Store and Account System for maintenance – February 19, 9:00AM EST (14:00 UTC) - 6:00PM EST (23:00 UTC)
I'm not entirely clear what the nature of the problem is from your wording, but I logged into PC EU 20 minutes ago without any issue (or queue). Playing from the UK direct through ZOS, i.e. not using Steam or Stadia.