[site blocked: 1d.tlu.dl.delivery.mp.microsoft.com]

Ok, I figured this out! I had site blocking on in my router settings based on certain keywords. I totally disabled the site blocking function, I stopped getting the site blocked notifications. This site that was blocked completely has to do with the Microsoft store app in my Windows 11. In my router, I looked up the two assigned ip addresses with the issues. They were my desktop PC and my Microsoft Surface Pro. I opened the Microsoft store app on both, and saw that an update was stuck on each device (both different product updates, this can happen with any one of them). When I quit the download/update attempt and then restarted the update attempts, I got the error log notice via email from my router! So after temporarily turning off the site block, I could finish the Microsoft store downloads/updates. I then enabled my site blocking again and no more notices for now. I will know what to do next time this happens. I have a daughter, so I have certain keywords that may be on websites blocked and I will continue to use this feature. At least I can identify which device, and check the Microsoft store app for "stuck" downloads. Hope this helps some people.