Well, yes. I didn't pay attention to your picture when I posted. So, I don't know why it's narrower than the standard 8p8c jack and it looks keyed on both sides, opposite the clip end. Have you tried a keyed connector? As in a true RJ45 plug end, I don't know it they're narrower or not. That's all I've got.
I looked around and I don't have any RJ45 jacks or connector to try.

Last edited by justbill; 10/02/22 09:46 PM.

Retired phone dude