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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(48, 23%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAC%3C/text%3E%3C/svg%3E)
Hi, we have .exe downloads on the CDN. The download from US is very slow 0.9MB/s , or it doesn't finish.
Downloading the exact same file from EU works well and fast.
The size of the .exe is around 80Mb.
The problem started about 30 minutes ago (15 Sep 2025 15.00 UTC)
Thanks
Alessandro
An Azure service that provides global content delivery and acceleration.
Now it is returning this error:
504
The service behind this page isn't responding to Azure Front Door.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(83.2, 80%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHT%3C/text%3E%3C/svg%3E)
I am seeing the same issue, large file downloads are slow or timeout in US, issue started today. Small files are working correctly, but large .msi installers are slow/ timeout. Looking a analytics the average download speed from CDN was 14 M Byte per second on 9/14. But is now 3 MByte per second across all artifacts. 30 and 60 MByte .msi files are not completing.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(204.8, 68%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDF%3C/text%3E%3C/svg%3E)
Also having this issue
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(124.80000000000001, 83%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERV%3C/text%3E%3C/svg%3E)
Hello @Alessandro Cirelli,
It is an expected behaviour, and our backend team is working on it. we will let you know once we get an update.
Answer accepted by question author
Hello @ Alessandro Cirelli,
Thanks for reaching out to Microsoft Q&A.
The issue is mitigated now. please let us know if you have any further questions.
Please "Accept the answer" if the information helped you. This will help us and others in the community as well.