Software Deployment through GPO Issues

I have 2 DC's. The primary hosting a share with all my WDS and general softwares and patches for the network. My issue is the standard "Verify that the source exists and that you can access it." but only on some packages. I have verified both domain users and computers have share "read" permissions as well as ntfs permissions, and the .msi itself.. Some of the packages work... most of the time.. and others don't ever. I have verified the package works just fine running /quiet. And I have also ignored language. Any ideas would be awesome. Thanks!