Maintenance for the week of January 19:
• PC/Mac: No maintenance – January 19
• NA megaservers for patch maintenance – January 21, 4:00AM EST (9:00 UTC) - 10:00AM EST (15:00 UTC)
• EU megaservers for patch maintenance – January 21, 9:00 UTC (4:00AM EST) - 15:00 UTC (10:00AM EST)
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.