Maintenance for the week of November 18:
• PC/Mac: No maintenance – November 18
• ESO Store and Account System for maintenance – November 19, 9:00AM EST (14:00 UTC) - 6:00PM EST (23:00 UTC)
• PlayStation®: EU megaserver for maintenance – November 19, 23:00 UTC (6:00PM EST) - November 20, 17:00 UTC (12:00PM EST) https://forums.elderscrollsonline.com/en/discussion/668861
Had to disband 4 quests (that possibly lead to more quests) in Glenumbra
Glenumbra has a number of quests and other misc. interactables that are fine for several hours after the server first comes up. But for whatever reason after an extended period of time those things begin to bug out and become less and less interactive as time slips by.
My advice is to go straight to those quests when the server comes up and complete them while you can... until the next time the server goes down.