Hmmm. Are you using the Audio Manager's DHCP server, or another one?

It looks like the Receiver thinks its got a really short lease, and so it's asking for a new address. However, the server won't respond until the "seconds" field in the request reaches some non-zero value (5, IIRC).

There's either a bug in the DHCP server that meant it handed out a really short lease, or in the Receiver that meant it parsed the response incorrectly. Also, the Receiver shouldn't send out the request more than once per second, anyway, so something's wrong there.

Does this happen often? Presumably you've tried power-cycling the Receiver?