Here's a strange one...
The server is 2017 CU10. Everything is just fine except trying to type text in customer and vendor card using the web client. It's veeery slow and many characters are not even catched.
I think I know the reason, but I don't understand the root cause. If I use Fiddler to see what's going on between my client and the server I can see that when opening the customer card there's a constand flood of network calls from the client and it never stops. It keeps hammering on like crazy! The same thing with the vendor card. E.g. the contact card and item card does not suffer from this and keyboard input works just fine there.
Any ideas out there?