Epicor seems to work fine.
But using mssql I am unable to connect to database, getting an error the remote access is unavailable.
We did no changes into the account credentials.
Test database is OK.
It is scary and do not know how to resolve this. We connect to it via SQL server authentification. Because of this, all our production tools created under .net are not working.
Error says about password or id incorrect…
Is it possible that the window firewall or other software firewall has been enabled blocking port 1433?. This link might help you trouble shoot Verify Connectivity to SQL Server