Maintenance for the week of February 3:
• PC/Mac: No maintenance – February 3
• NA megaservers for maintenance – February 5, 12:00AM EST (5:00 UTC) - 12:00PM EDT (17:00 UTC)
• EU megaservers for maintenance – February 5, 5:00 UTC (12:00AM EST) - 17:00 UTC (12:00PM EST)
• ESO Store and Account System for maintenance – February 5, 12:00AM EST (5:00 UTC) - 12:00PM EDT (17:00 UTC) https://forums.elderscrollsonline.com/en/discussion/672681
You have a triple penalty upon deserting for a ranked match as deserting is like conceding. You lose 150 points, get no reward and win a time penalty...
I sometimes get the penalty even before I have a chance to see game's UI. It's probably triggered by some other actions that a player does after/when accepting the game. Sometimes accepting when riding does that. It's a bug that is still there. I have no hope that it will be fixed any time soon.