How to fix "Switch to or Retry" error?

[RR53]

When I try to transmit a return i keep getting the error "Switch to or Retry" error.  It finally goes but sometimes does not transmit state return. 

[Just-Lisa-Now-]

https://proconnect.intuit.com/community/tax-return/help/server-busy-this-action-cannot-be-completed-...

I have this issue all the time, I've found when it happens, its when Carbonite is updating my cloud backup files.