Restart AutoIncrement Key from old value in SQL Server

hello sir..

I work on project which relates to logistics services.

In that  am using a form to add Job to add information reagrding exporter,container,importer etc.

In that Job_id is auto increment.Up till now this work fine bt as soon as i completed job_id =400 ,next job_id which want to generate is 401 ,bt itstead of 401 it generates 1392 directly and start from 1393,1394 so on.

So is it possible to start after 400 it starts 401,402,403 so on.

Thanks