Dear Techs, I'm in a strange situation where I'm supposed to add both F5 Big-IP with Big-IQ. Both Big-IP and Big-IQ are in same subnet, so firewall isn't a question. The Big-IP are in HA. I've successfully added the Standby unit with Big-IQ without any issues while adding the Active unit I'm getting below error message : The device <Big-IP-Management-IP> (null) is not a Big-IP device. I've added a total of 7 devices successfully, using the same procedure, same authentication. Any help with be greatly appreciated. Big IQ version : 8.0.0Big-IP version : 14.1.4 thank you

OK, the first step to debug this problem is to verify TCP communication between BIG-IQ and BIG-IP systems.

sure, connect to the BIG-IQ in SSH and check theses logs when you try to discover BIG-IP : /var/log/icrd/var/log/restjavad.0.log /var/log/restjavad-audit.0.log K articles will be also help :K15436: Configuring the verbosity for restjavad logs on the BIG-IP systemK22244445: Enabling debug logging for restjavad in BIG-IQ regards

Hi Dexter, This K article below helped me a lot to solve this kind of discovery problem.K16307: Troubleshooting BIG-IQ device discovery failures Hope it's helpRegards

Thank you dear. I did read the document before but sadly couldn't find my answer there. At first, i thought to update the REST API but since the document says its not applicable if version is 12.x and above, i believe i still have to hunt for the solution.

Big-IP not recognized by Big-IQ

Dexter
Altostratus
Jul 08, 2021
Any idea guys?
Lidev
MVP
Jul 08, 2021
Hi Dexter,

This K article below helped me a lot to solve this kind of discovery problem.
K16307: Troubleshooting BIG-IQ device discovery failures

Hope it's help
Regards
Dexter
Altostratus
Jul 08, 2021
Thank you dear. I did read the document before but sadly couldn't find my answer there. At first, i thought to update the REST API but since the document says its not applicable if version is 12.x and above, i believe i still have to hunt for the solution.
- Lidev
  MVP
  Jul 08, 2021
  Connectivty test are ok between BIG-IP and BIG-IQ ? what does the restjavad says on the BIG-IQ ?
  - Lidev
    MVP
    Jul 12, 2021
    OK, the first step to debug this problem is to verify TCP communication between BIG-IQ and BIG-IP systems.
Dexter
Altostratus
Jul 15, 2021
One thing more, the big ip we want to add have it's device certificate expire. Is this can be the reason? Also what are the impacts of renewing the device liecense, I believe the HA will break right?
- Lidev
  MVP
  Jul 15, 2021
  Didn't know but in all cases it's necessary to renew this device certificate to restore iQuery communication and Trusted Device Certificate between the cluster. Maybe it will allow the BIG-IQ to discover it.
  
  K16951115: Changing the BIG-IP system device certificate using the Configuration utility
  
  why do you want to renew the licence ?
  - Dexter
    Altostratus
    Jul 15, 2021
    Sorry not license, I meant device certificate. Does renewing device certificate breaks/interrupts HA or production traffic?
JamesCrk
Cirrus
May 11, 2022
did you get this resolved? exact same issue here
- Rongill
  Nimbostratus
  Jun 24, 2022
  So I also just had the same issue. On a whim I restarted restjavad on the the BigIP (not the BigIQ) with # tmsh restart sys service restjavad
  After doing this the BigIQ was able to add the device. Hopefully this works for others as well.