Firstly, please check the license code, to make sure it is still available and it is not upgrade from other licenses. If it is upgraded from other license, need to check the parent license info first. Make sure the parent license has been returned first.
Then troubleshoot as the following steps:
- Check if you can open the flexnet portal: http://support.zwcad.net:8888/flexnet/operationsportal/showActivationIdLogon.do
If not, then should try manual way to activate, because the reason may be that the port 8888 is not allowed for the computer.
- Try manual way to activate. For the manual way, make sure you use the response file matches the latest request file, Make sure not to generate the request file again after you get the response file from Flexnet portal, because these 2 files need to be matched, and the requested file will be always different for each time you generate.