Hello Comunity, I had to reinstall my Lightroom version 6.14. After the installation, the PDApp starts first and wants me to log in with my Apple ID. The login works so far - no problem. Now the app wants to check the serial number. I am asked to connect to the internet. At this point I can't get any further. There is definitely an Internet connection, I have deactivated the firewall and the date and time on the computer are set correctly. Does anyone have any ideas on how to proceed at this point? Thank you very much!