Attempting to restore licence gives the following error in the logs and the generic "there was a problem communicating with the licence server" error dialog
0035562: 140353319671744: General: CRegistrationHelper::Linux: Start
0035562: 140353319671744: General: CRegistrationHelper::Linux: Registration via Method 1 succeeded f1f26b72e26d8f1a
0035582: 140353319671744: General: CRegistrationHelper::Linux: Registration via Method H succeeded f02f260d62958ca
0035582: 140353319671744: General: CRegistrationHelper::Linux: Finish (20 ms)
0035582: 140353319671744: General: CRegistrationHelper::InitializeBuyButton: Init produced error 6
0035583: 140353319671744: General: CRegistrationHelper::Linux: Start
0035583: 140353319671744: General: CRegistrationHelper::Linux: Registration via Method 1 succeeded f1f26b72e26d8f1a
0035584: 140353319671744: General: CRegistrationHelper::Linux: Registration via Method H succeeded f02f260d62958ca
0035584: 140353319671744: General: CRegistrationHelper::Linux: Finish (1 ms)
0035585: 140353319671744: General: CRegistrationHelper::InitializeBuyButton: Init produced error 6
0035585: 140353319671744: General: CRegistrationHelper::Linux: Start
0035585: 140353319671744: General: CRegistrationHelper::Linux: Registration via Method 1 succeeded f1f26b72e26d8f1a
0035586: 140353319671744: General: CRegistrationHelper::Linux: Registration via Method H succeeded f02f260d62958ca
0035586: 140353319671744: General: CRegistrationHelper::Linux: Finish (0 ms)
0035586: 140353319671744: General: CRegistrationHelper::InitializeBuyButton: Init produced error 6
0035591: 140353319671744: General: JRMonitor::UpdateInfo: Start
I can see via a packet capture that it does connect successfully to rover.jriver.com so it's not a connectivity problem
installing a fresh licence from the cli works fine