Installation of a new SignagePlayer on station without access to the internet

[Zdennda]

After upgrading the SignageServer to ver. 4.11 I am not able to upgrade/install the new SignagePlayer (ver.4.11....) on stations without access to the internet. The installation starts but runs very slowly. After the installation the application "SignagePlayer" does not start. Only the process "SignagePlayer" is running.
Is it necessary to have internet access on this station?
The access (of this station) to the SignageServer is okay.

Thanks in advance for any suggestion.

[Zdennda]

Possible answer here (??):
h**p://blogs.adobe.com/simplicity/2009/09/why_air_fetches_a_thawte_crl_n.html

...... because I caught several packets (UDP to port 53) asking about  xxxx.thawte.com   

Some commentary on it .......?

Thanks.

** = tt