While reviewing the node details page today, I noticed under polling details the next poll shows a date of 10/5/2020. Can anyone explain why the next poll reflects a date that passed 5 days ago? Screen shot attached.
repair your collector service.
next poll time will update by approx. 1hr or more with each poll.
This can happen if you have an agent deployed and run maintenance on the SQL server. I just reported this bug. It appears that if a scheduled discovery or poll occurs when the SQL server is unavailable it doesn't reattempt the polling again because it's waiting for the event in the past to clear before resuming.
Easiest fix if it's an agent is to switch to another polling method, verify the timers update and then switch back to agent. If not an agent you can switch to an agent and back to clear it.
Sadly at this point there isn't documentation on where in the database and what field you need to update specifically.