I removed "Interface error" monitoring from our 600 wireless access points in one day. I think this caused the polling engine to go unstable and it was down 75% of the day. I worked with support and we did a few things but now the polling engine is stable but still the charts are showing no data and I can easily see wholes in the graph.
I upgraded to 9.5.1 on Monday but deleted 600 interfaces on Wednesday and the problem started happening on Wednesday.
How can I fix this? I am not sure if removing the interfaces caused it but seems like it. We cleaned up the database and also did few things but nothing seems to help.
Meena