When does Static IP of an IAP is over written by DHCP ip?

MVP Expert
MVP Expert

When does Static IP of an IAP is over written by DHCP ip?



Starting form Instant Image version onwards self-recovery mechanism was introduced on IAPs. Currently the network stability and usability of cloud-based management became more and more sensitive and important. But there are many unintentional factors that cause exceptional situation. And when customer environment happens problems, it cannot automatically fallback to one normal state, even without a centralized manual debugging method under many circumstances. Hence self-recovery mechanism was introduce by Aruba based on most common factors.  


One of the factor is Network link. The stability of network link certainly will affect the connection. Our intention is to make some diagnosis, once detect the network link issue, and then do some recover method. For example, if the AP is configured with static ip address, but with which the IAP could not connect to the Internet, the IAP should to do DHCP and get the dynamic ip address.


Below 3 conditions are mandatory for an IAP to fall back to DHCP ip from Static ip 


1. When IAP establish TCP/SSL with central fails

2. When IAP establish TCP/SSL with activate fail and 

3. ARP ping fails for the IAPs gateway


When all the above conditions satisfy then the IAP will revert to DHCP ip from its Static ip. 

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Last update:
‎11-06-2018 03:15 PM
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Is there a way to disable this self-recovery behavior?

Please let administrators decide what is nessesary. This behavior causes a lot of unwanted Internet traffic every 5 seconds.

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