PHP Guard Dog (Sessions)

I am using a program called PHP Guard Dog for password authenticiation - and it works fine but when I check the remember me box - It will not remember me.

The problem is that this worked before for about 2 weeks and then all of a sudden stopped remembering the person as if no cookie was evident… I contacted the support team for the software and they told me that sessions might have something to do with it and asked if I had changed anything on the server that might cause this.

so at this point I am sort of lost… was just hoping you could help out with what sessions are and if they have anything to do with this issue.

Thanks in advance.

Kind Regards,
James DeRosa