I'm using .Net core on raspberry pi 3+/4. Using raspbian buster on the PI4 the System.Data.SqlClient package is not working anymore: the SqlConnection.Open() call lock forever and never return.
The MS guys checked all the stuff telling me that everything is fine, and told me to redirect bug to raspbian buster group. The same code run in raspbian jessie&stretch and it works fine. Probaly this is going to be a low level network problem I think ...
Someone is faceing similar problem?