Cannot sign in to Communicator because your computer clock is not set correctly. To check your computer clock settings, open Date and Time in Windows Control Panel.
Cannot sign in because the server version is incompatible with Microsoft Office Communicator 2007. Contact your system administrator ...
Cannot sign in because you are using an older version of Communicator. You may need to update your version of Communicator ...
Cannot sign in to Communicator because of a problem connecting to the server. If the problem persists, please contact your ...
Cannot sign in to Communicator because this sign-in address was not found. Please verify the sign-in address and try again. ...
Cannot sign in to Communicator because your computer clock is not set correctly. To check your computer clock settings, open ...
Cannot sign in to Communicator because your program is not configured to use Transport Layer Security (TLS). Please contact ...
Cannot sign in to Communicator using your current connection settings. To change your connection settings, in the Options ...
Cannot sign in to Communicator. The specified address may not exist, or the server may not be available. If the problem persists, ...
Cannot sign in to Communicator. You may have entered your sign-in address, user name, or password incorrectly, or the authentication ...