Hi @Y.Z,
Can you check that the machine that is running the cryoSPARC master application has access to our license server, https://get.cryosparc.com?
You can check by using the following command:
curl https://get.cryosparc.com
you should get a response that says:
{“message”:“Missing Authentication Token”}
This indicates that you are connected to the internet and can access our license servers. Any other output/error indicates something is wrong with the network.