"A required certificate is not within its validity period" - eight or more users can't connect

Hi,

The following steps will ensure that you have the required certificate installed and that it has the correct permissions enabled:

1. Navigate to this verification page. If the page doesn’t load, that means they do not have Digi cert on the machine. You can download the  root cert at DigiCert (DigiCert Trusted Root G4, DER format, parent web page link ) and install it by choosing local machine as option.
2. If you have certificate already installed, and still facing the issues then follow the below steps :

1. Select Run from the Start menu, and then enter certlm.msc.
2. Find DigiCert Trusted Root G4, right click on “properties”.
3. Select third radio button (Enable only for the following purposes) under “Certificate purposes”, and check “Server Authentication”, “Client Authentication”, “Code Signing”, “Secure Email”, “Time stamping”
4. Click on apply.

Once you have completed these steps, sign into your GoToMyPC account and try to connect to your Host computer.

EDIT -  Including info from follow up posts later in this thread:

We have developed an executable for those customers still having issues after the fix was released:

1. Please download this file and run it once on the local (Client) computer that you are connecting from.
2. Sign into your GoToMyPC account and connect to Host as you always do.

If you are not using MFA or SSO on your account you can also download the GoToMyPC client-app and connect to host computer using client app.

If you are still unable to connect after doing this, please give our toll-free support a call and they will assist further.