I have just updated the DSM of a Synology Nas. DSM 5.2-5644 Update 2.
It seems now I can no longer use the Package center. But, as I have not used the Package Center for a long time, I'm not 100% the issue is related to this DSM upgrade.
When selecting sections like Utilities, Security, Backup or even Community, I get the error message Connection failed. Please check your network settings
after a long time of "Loading..." turning wheel.
I checked my firewall settings, and allowed every ports and protocols... But that is not sufficient, since I still have the same error.
Any idea what I should check ? because the error message doesn't give me lots of information.