Hi, @StiFenclii-5690
Thank you for posting in Microsoft Q&A forum.
Based on the above error codes, the issue seems to be related to IIS on the distribution point.
You may open the IIS on the DP server and check whether the SMS distribution points pool is stopped.
If it is stopped, you may check event viewer to see if there is anything blocking the application pool?
Check this blog for more details to see if it helps:
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