0 Freetds sqlstate[01002]

In case of error : Not connected SQLSTATE[01002] Adaptive Server connection failed (severity 9)

Connect to MSSQL server from linux server :

tsql -S server.com -U username

Output : 

locale is "en_GB.UTF-8" locale charset is "UTF-8" using default charset "UTF-8" Msg 18487 (severity 14, state 1) from server.com Line 1: "Login failed for user 'username'.   Reason: The password of the account has expired." Error 20002 (severity 9): Adaptive Server connection failed There was a problem connecting to the server

Change password or uncheck password expiry option in MSSQL server.