I have opened a case, 02394834, on this.
I just noticed my O365 backup takes forever now .... as in 17B/s in transfer speed ... so a simpel incremental never completes.
It has been running fine until 10/13/17. After this date the transfer speed is nearly zero and has never completet as session.
Ohh, it´s not a local bandwidth issue.
Anyone seeing this?
Is Microsoft somehow inforcing speed transfer limits?