Attachment upload error after server migration

[Coop1979]

I migrated to a new server last night and everything seems to be going well except I can't seem to get attachments to upload. I get the following error:



I have checked permissions. I am currently running the same version of PHP that was running on the old server (7.0.15). There are 3 attachments that have been able to upload by other users since the migration, 2 jpg's and 1 PDF.

No errors in Server Error Logs, or on the server in the nginx or php logs.

What else should I look into to help resolve this?

 

[jeb35]

Check with your host to see if mod sec is tripping on this and if so have them white list the rule that is being triggered.

 

[Coop1979]

I've narrowed it down to /attachments/do-upload.json as coming up 404 Not Found. Just not sure where to continue tracking it from there.

 

[fly]

Do a file health check?

 

[Coop1979]

Do a file health check?

Yep. Everything checks out. Renamed a file to make sure that it was running properly and would find a missing file, too.

 

[Brent W]

Check permissions on the upload folders.