I meant asking IT what they did that may cause this behavior. It is obviously related to the version upgrades and difficult for us to figure out when we don't know the steps taken by IT.
Already asked this: Office 365 is deployed by Microsoft and IT means, we have an absolutely default deployment, without any customization. No chance to work... and we need a second licence, while the first is no longer working
Can we do a Teamviewer session tomorrow or later this week? I can try and reinstall Seotools on your computer and see if I can find the issue.
Please contact me at email@example.com about this and also write your license email.
Wow, a big step further! I realized, that the problem exists only with HTTPS-URLs. With HTTP everything is working like expected.
Maybe this would help to debug things: https://mehdi.me/a-tale-of-debugging-the-linkedin-api-net-and-http-protocol-violations/
That is good news Can you ask IT to temporarily turn off any firewalls or other type of security for testing purposes?
No Firewall is the holy cow here...