I'm trying to solve a little problem. I have a SharePoint 2016 on a vm Azure and if I connect to my site on port 80 I have this following problem when I want insert item on a custom list:
"The server could not save the form at this time. Try Again"
In network I can see this error : ProcessQuery /_vti_bin/client.svc Status Code: 500 System.ServiceModel.ServiceActivationException
If I connect to remote desktop (with rdp), I don't have problem to insert item into the list.
If I leave my vm (I connect to my site before leave it), and if I reconnect on the site I can insert an item ....
The memory is good, anonymous connections is enabled. I am a little lost. Thank you in advance for your help.