Certificate not being accepted: This operation is not supported for the current selection.

[-Jeff-]

Hi,

Can anyone help with this?  The certificate is not password protected and it is a .cer file.  The printer does not seem to take it and I can't figure out why.  

Thank you in advance.  

[-Jeff-]

I tried exporting the certs as DER and Base-64 but still no luck.  I rebooted the digital sender and even tried a different browser but nothing.  I tried certs from my browser and my computer.  It seems like the printer will not take any certs.  I am thinking of removing some existing certs but am afraid if I do that it still won't work then I won't be able to re-import the certs I removed.  Firmware was also upgraded to the latest one too.  Any ideas?

[-Jeff- · Accepted solution]

Solved! Turns out the maximum amount of certificates that can be held is 21.  I needed to remove a cert to make room and then I was able to import my new cert.  I just removed a cert coming close to expiration but I did export it first and I am saving it on the side just in case it is needed later.  I also found this article which also has some insight regarding certificates.  

https://h30434.www3.hp.com/t5/Scanning-Faxing-and-Copying/Digital-Sender-Flow-8500-FN1-Certificate-M...

"This operation is not supported for the current selection." threw me off and should maybe say something such as "Maximum number of allowed Certificates has been Reached"