Content not distributing to some distribution points

Hi,

I created a new package and distributed it for the first time last week. This package distributed successfully to 22 distribution points but appears to be In Progress on 6 other distribution points and never transitions to Success. This package has been in this state for a week now.

I have checked firewall traffic between the primary and secondary site servers but no blocking conditions have been encountered. I have looked at the logs below but none contain any errors. I also noticed no mention of the DP I distributed to in distmgr.log on either server.

Parent Site Server: distmgr.log and sender.log
Secondary Site Server: despooler.log, distmgr.log, and pkgxfermgr.log

What else should be inspected to determine why this content is not moving to its destination? What are some other scenarios where there are no errors and content is not moving.

Thank you!

Rob