Yes, I used Clashr, a network proxy tool, to access the Internet through the HK router, such as google. What is the URL of the license server? I want to test it.
Further to this, my collaborator in China contacted me saying she couldn’t buy the upgrade, even though she had got the discount code. After a couple more tries it all wen through to the point of entering her bank card details, but she was away from home and, being Chinese doesn’t carry her bank card with her as she does all her payments using WeChat Pay. So she’ll have to try again when she gets home.
But it seems it is working in China, so the network blocking may be more locally-based.