transferred from: https://www.imooc.com/article/40978
Pro-Test Input pycharm latest 2018 Activation Code: First enter the new license sever address
The first way to try this is to eject the activation box for expiration:
Select Activate new license with license server (activated with license server)
Fill in the License sever address https://jetlicense.nss.im/
Click Activate for certification to see if it is successful.
Error cannot obtain ticket, update license sever address
If unsuccessful, it appears: cannot obtain ticket from https://jetlicense.nss.im/ due to connectivity problem: Java.security.cert.CertificateException Error,
This should be the old version of the problem, 2018.01.31 with the 2016.2.3 version difference,
Then the solution is:
Select Activate new license with license server (activated with license server)
Fill in the License sever address Http://idea.liyang.io
Fill in the License sever address to replace the following.
Pycharm Latest Activation Code (2018 activation Code)