Session problem with my local oscommerce version

[NBA]

Hi,

I use xampp to test my oscommerce shop in a local area. Bit I have a session problem in my admin of oscommerce. This problem is only in the local version. My online version is wirking perfectly. Always when I use the search function for cutomers or articles in oscommerce the actual session is dead an I have to login new in my admin.

Where is her the problem?

Thank you.