We are not able to reproduce this problem locally. It seems there is something specific between both the servers you have like
IIS settings, NETWORK
SERVICES permissions, custom settings to Sitefinity you have made
. Most probably the issue is related to some configuration of the severs, but If you would like we could try to reproduce the problem locally with your project. You can open a support request and attach your database and website or send us external link from where we could download all files.
the Telerik team