Since this morning I am trying to get APNS to work for a customer. After downloading the signed CSR from JAMF. The apple certificate portal always gives the Invalid Certificate Signing Request error.
The Certificate Signing Request you entered appears to be invalid. Make sure that request file uploaded is in the correct format and not empty.
We are having this issue today. I have chatted with Jamf Support and they said:
"Hey Josh, if we are having issues with uploading the CSR file to Apple Push Portal and are getting the 'Invalid Certificate Signing Request' message, it is on Apple's end as I've also tried recreating this issue earlier and experienced this same problem.
The next step is to contact Apple Support as the issue is on Apple's side and there is no issues with Jamf Nation."