Hello,
Thank you for your message.
This issue might have occurred due to some kind of False Positive which might block/restrict Remote Utilities or block access to our servers. Most of the times the end user is not notified of this type of security software (or ISP) activity, so it seems like there were no changes that might have caused the issue.
Could you please let us know if you have an antivirus or firewall installed on your remote Host machines or somewhere on the perimeter? If yes, then please make sure to add Remote Utilities installation folders to the exception lists as described
here.
In addition please make sure that the outbound TCP ports 5655 and 443 are not blocked or used by another software since these ports are required to be opened (or at least one of them) in order for the Internet-ID connection to work properly. For more information on ports used by RU please see this
page.
Last but not least please make sure that the DNS name
id.remoteutilities.com which points to our servers is not blocked anywhere on your network or at the ISP level.
Please also try referring to
this troubleshooting guide that might provide some helpful information.
Hope that helps.