Backup & Sync (server) time-out?

I looked for other posts relating to this problem, but didn't find any. This is not a critical problem for me at this time, but I want to be using the feature more in the coming weeks.
 
The Backup & Sync feature is really sluggish for me. I understand it takes time to do the original backup and/or sync. When I try to access the devices/folders, it takes a very long time and frequently times out and displays error message - "A request to the server failed. Please refresh the page or try again later."
 
Sometimes I will see the root drive in a folder, then clicking that will stall and fail. Is this likely a problem on my end of the system (same problem on all PC devices), or is it the cloud server?
 
Possibly related is that accessing my.webrootanywhere online account takes a long time usually - even a few minutes before it connects and updates status.
 
I have a 15 MB cable internet connection and relatively fast PC, so I don't think the problem is on this end, unless its the way I have things setup.
 
Thanks in advance for any help!
 
Dave