Do not include your identity column to you insert statement.
insert into myTable(identitycol, col1, col2, coln)
values(1, 'value 1', 'value 2', 'value n') ===>WRONG!
insert into myTable(col1, col2, coln)
values('value 1', 'value 2', 'value n') ===>RIGHT!
"Often speak with code not with word,
A simple solution for a simple question"