Please make sure you have entered the correct connection strings information, please check :
1. The database username required the database prefix for example : c1234_username or DBprefix_username
2. You have used 25000 as the port at your connection strings, for example , sknet118.seekdotnet.com,25000 , please put ",25000" behind the server name to specify the mssql port we use.
If the problem still persists , please create a support ticket and our engineer will check it further.