PXE Redirection does not pickup image from local site

we have a main office and one site. Everything works fine, except when user reboot workstation in the remote site (pxe bootup option, F8) and select image (eg: Labimage.img which has redirection option enabled).

The machine does not get image localy, still point to main office (f drive)
We checked additional drive mapping (eg: G\\altiris2\express)
We checked Lmhost, it shows main and remote site names
We checked access rights on both server
We also create a job to deploy image using local option for the image and same thing, it still want to go to F:\ drive to get image rather than locally
The log file said “The file does not exist....Filename: G:\Images\labimage.img), but we tested mapping from both server and we can see file....

I am wondering if anyone knows where else to check in order to force the process to go to local drive instead of F:\ drive