Hello,

To change the MSSQL Server name in Plesk, please follow the steps:

1)Login to server(RDP)
2)run cmd
3)cd %plesk_bin%\mysql\bin
4)mysql -uadmin -psetup -P8306 psa;
5)update misc set val="" where param ="mssql_data_source";

Thats all

Best Regards,
Milind M. Koyande