Sorry for somewhat misleading previous replies. At first, we thought there was an issue with OneDrive. But the actual problem is that the program lacks the ability to load an encrypted book (a file with the .encrypted extension) to your Viewer. We also mention it in the Tips section in this documentation article.
I updated the article a bit and added a workaround, see the last item in the Tips section. In fact, if you want to use the "Dropbox" method (or OneDrive for that matter) of sharing your address book, and you want to encrypt it as well, you can simply use the Portable Viewer.
Hope that helps. Let me know if you have other questions.
This is similar to the issue reported by Pat. Host has issues contacting the intermediary server due to some network problems either on the Host computer or the network. Also, this might be firewall activity on the same pc or in-between.
I do not have any other hosts to compare, but this does happen with multiple viewers coming in from different networks.
That might point at connectivity issues on the Host side which is also confirmed by the Host log you are referring to. Socket error #11001 may be caused by plenty of reasons, and generally it's connectivity/network issues between Host PC and remote server (in this case - our public server).
I don't think it is a DNS lookup issue since it does work intermittently.
It would be error #11004 then.
Have there been any other reports of difficulty communicating with the ID servers?
No, the servers are up and running. No recent maintenance or downtimes.
I would recommend that you check the firewall and antivirus software on your Host PC. For Internet-ID connection to work only outbound connection to our server is required, and such connection is normally allowed by default in modern firewalls , but who knows if there is any special policy or filter in place.
As for antivirus software, you could add Host's installation path to its exceptions list. You can do so with any a/v software including Microsoft's Windows Defender if that is what is being used on that computer.