Is anyone else getting error notices that an action can't be completed because the underlying service is taking longer to respond. Please retry after some time.

Can you be more specific? What action when you received the error?   Underlying service  often relates to operating system or a conflict.  Check services in task manager

I just got this error. And received it several times yesterday and in prior days. Very irritating. It comes at no predictable time, although at least once it came while toggling from the NY State Tax Summary to the Federal Tax Summary.

I had this issue for 4 days straight. Finally came into the office today and it has been fixed. Not sure if it was something I did or if there was a patch that fixed it. What I did do was the following: Turned off all my workstations including my server overnight. 1st thing in the morning I ran Proseries repair updates on all my workstations. Logged in to Proseries and I no longer have gotten this message (usually happened when I clicked on the "tax Summary") Anyways you might as well and try this see if it helps. 

Yes, we have been battling this for a few days also. Our computer tech support people, not Intuit support, have been helping with it but they have been stumped too. Later yesterday and so far today ours are working properly again. Our problem is worst when we use the $ummary function within the software but we have also had the same message when opening the software. 

yes - this happened a couple of time today. Annoying is not the word. . .