STR:
1. Click on Connections icon in status panel
2. Click on Edit connections
3. Select Wired connection
4. Go to 802.1x tab
5. Check the Use 802.1X checkbox
6. Choose TLS
7. Click on Secret key button
8. In file chooser navigate to the folder where key is located and try to select key file - the list is empty
I'm absolutely sure that private key file exists in the folder and is correct. As a workaround TLS can be configured manually using wpa_supplicant.
Ubuntu 16.04 LTS x64
Network Manager: 1.1.93-0ubuntu4
STR:
1. Click on Connections icon in status panel
2. Click on Edit connections
3. Select Wired connection
4. Go to 802.1x tab
5. Check the Use 802.1X checkbox
6. Choose TLS
7. Click on Secret key button
8. In file chooser navigate to the folder where key is located and try to select key file - the list is empty
I'm absolutely sure that private key file exists in the folder and is correct. As a workaround TLS can be configured manually using wpa_supplicant.