Api mode: Remote AT Response status 04

Hello,

I’m trying to configure some xbee’s with digimesh firmware and Api mode.

My problem was that some times when i send the ‘WR’ command the xbee, this don’t response an ok (status: 00), response status: 04.

What the status 04 mean?
Why this happen sometimes?

Thank for your time.

Greetings

Can you provide the full API frame you are getting back?