Trying to upgrade from 7.11.3 to 7.11.4 on IIS. After clicking the “Upload Package” button, I get a 404 error. It appears to create 4 directories under the UPGRADES folder in IIS (full,langpack,module,patch, theme), but no files. 404 error comes up almost immediately. I have checked the folders, and I have them wide open for write access.
I have faced similar issue but on different environment, in my case it was theme folder issue.
do you recall what the issue was? Thanks!
I have solved this issue. Here is what I have found:
IIS has a built in filtering limit of 30,000,000 bytes (28.6MB) built in to IIS (they started this around v7). This results in a 404.13 error in the logs when you try to upload a file larger than that limit.
To fix this, open IIS Manager and look for “Request Filtering” - open the feature. Go to the “Hidden Segments” tab, and select “Edit Feature Settings”. Here you will see the Maximum allowed Content length setting (defaulted to 30000000). I changed mine to 60000000 which will allow for the uploading of the upgrade file (which is currently just over 32MB).
Hope this helps somebody out in the future.
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