I recently setup SCCM 2012 SP1 and was successfully deploying updates, packages, and definition updates to my clients until I decided to tidy up my ADRs so that I only had one relating to Endpoint Protection definition updates rather than 10. After doing this the clients now find 0 definition updates when checking with the site server/DP even though the latest definition has been successfully deployed and is available from the DP and assigned to the correct device collection. When I perform a manual update on a client it goes straight to the internet and downloads the latest definitions from Microsoft even though I have specifically set the config manager as the only source in the client's settings. There are no errors in any of the log files that I have looked at and all other updates are deploying successfully.
I have been pulling my hair out with this for over a week now so any help would be appreciated.