said by Millertyme:
Updated firmware version CZP002-4.3.009.16 is now available for download in your pk5001z modem configuration under update firmware. We shall see how it works. Thanks Centurylink and Zytel for listening to our issues,
Can you confirm the problem of ZyXEL PK5001Z resetting the IPV4 connection every 15 minutes is solved?