I added all the needed keys to the web.config and the appsettings regarding the max upload file size, and yet I am not able to upload a file 55MB. Always “Received error from the server” appear.
I tried /umbraco/management/api/v1/temporary-file in postman, the file was uploaded successfully. but using the umbraco backoffice, same error appear.
Any help regarding this issue?
Welcome Souseyeh 
Do the logs (Log Viewer) have any more details on the error you’re encountering? Just in case it’s a timeout or something tangential of that like. Perhaps sharing any details about the hosting option and what you’ve currently got as per the documentation’s Maximum Upload Size Settings could help too :3
Hi @souseyeh,
I encourage you to check out our latest article which is about uploading large files in Umbraco. We have covered most of the issues related to the files uploading. Probably you will be able to find the root cause of your problem.
Best!
WT