The instructions above state to navigate to Settings > Zigbee Details then click "Rebuild Network"
I'm on a C-7, Platform 2.4.3.155. Since @kkossev 's instructions above clearly call out a C-8, after some googling around, I've concluded "Rebuild [Zigbee] Network" is not an option on a C-7. I also surmised, from this post:
that I could roughly simulate a rebuild by shutting down HE and unplugging it for 20 minutes. Hope this helps someone on a C-7.
