Failed to connect to all addresses [0xE, Unknown] (Local License)

The following article may require assistance from your IT department/provider. We recommend forwarding this article to them to apply the solution provided. 

Description

You may encounter the following messages when your Micromine Origin & Beyond licence needs to complete an online check-in. This may also occur when you run a manual licence activation or check.

• There was an error while performing your licence activation
  Error message = failed to connect to all addresses [0xE, Unknown]
• There was an error while performing your licence update
  Error message = failed to connect to all addresses [0xE, Unknown]

Solution

1. Ensure that you are connected to the internet. 
2. Download and run the Micromine Licensing Diagnostics Tool here.
3. Click on "Test Licensing Services Connection" and "Test MLS License Check". You may see this or a similar message.
   
   
   
   The screenshot above indicates that a connection to microminelicensingservice.com could not be established due to a DNS resolution failure
4. Check to make sure that the client connection to microminelicensingservice.com:443 is not blocked by your network firewall or proxy. We also recommend that SSL inspection is bypassed. We have not provided any steps as this will vary depending on the hardware and software your environment uses.
5. Once you confirmed that you can connect to the Micromine Licensing Service, you may attempt the activation again.
   
   

Cause

Possible causes include (but not limited to): 

• Unstable or lack of internet connection
• Traffic to the Micromine Licensing Service is being blocked from either firewall or proxy.