Hi,
As you know, the RF4CE is no longer supported. That was the reason why we recommend ZB3.
Excuse me, can I adjust RF4CE_NWKC_MAX_PAIRING_TABLE_ENTRIES to 20?
The device could support the 20 entries, but it also will depend on the memory that you are using, also the RF4CE must be aligned with the specification.
Sorry for any inconvenience that this may cause you.
Regards,
Mario