Direct to printer - Error getting printer certificate from API

Tina_Mourad · May 27, 2026, 6:38pm

Hello,
help!
I’m not able to connect to my receipt printer. I have a Star TSP100 receipt printer and followed through with the settings mentioned in this post but it didn’t help . I seem to be the only one with this issue. I have also uninstalled and re-installed QZ Tray.

Thank you!

wesochuck · May 27, 2026, 7:01pm

You need a certificate:

Either create a self-signed one. If you are hosted, I’m guessing you have to request this from support.
Or follow these instructions.

Tina_Mourad · May 27, 2026, 7:17pm

Hi Wes, Yes I have a certificate that is being used by QZ tray .

I’ve tried “strict certificate mode” as well.

Do you think I should reinstall printer? I can’t think of anything else to do other than that

wesochuck · May 27, 2026, 7:42pm

If you’re using Chrome based browsers, have you checked this information? Repost regarding potential browser changes that would affect QZ tray (and any similar product)