Strange behaviour with Coordinator, Router and End Devices

Hi, I’ve a coordinator with firmware 2170, a router with firmware 2370 and many end-devices with firmware 2870.

Everything works fine while using XB24-BWIT-004 devices.
If I replace the router with a XB24-Z7UIT-004 device (2370 firmware) the system follows working.

But if I replace the coordinator with a XB24-Z7UIT-004 device (2170 firmware), the devices create 2 networks that don’t communicate: some end devices join the coordinator and some other ED join the router but they can’t communicate.

I tried using both XB24-BWIT-004 and XB24-Z7UIT-004 routers but the problem always appear.

To summarize:

OK:
coord: XB24-BWIT-004
router: XB24-BWIT-004

OK:
coord: XB24-BWIT-004
router: XB24-Z7UIT-004

NOT OK:
coord: XB24-Z7UIT-004
router: XB24-BWIT-004

NOT OK:
coord: XB24-Z7UIT-004
router: XB24-Z7UIT-004

I attach the configuration files

Your configuration files look correct. Try doing a network reset from nodes joined to the coordinator and router (via XCTU -> terminal -> enter ‘ATNR1’)

Thanks, that solved the problem.