Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

AJ_NewBie's avatar
AJ_NewBie
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Apr 20, 2021

Configsync issue BIG-IP v13.1.4 (Build 0.0.3)

I am running 2 VE Bigip LTM as my lab, and having configsync issue. Both the devices are able to reach other, and all processes are running. NTP is configured, configsync is via HA vlan.   Recei...
application delivery
big-ip
LTM
AJ_NewBie's avatar
AJ_NewBie
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Apr 27, 2021

hi Alex

 

I had the same issue with v16 and v15. I have tried every possibily troubleshooting out there on the F5 Kb. Finally running on v12 now.

Doesnt look like config issue to me, because on v12 it works fine.

 

The communication between the HA pairs are good but somehow it just doesnt sync. :(

Nikoolayy1's avatar
Nikoolayy1
Icon for MVP rankMVP
Apr 28, 2021

1.Have your tried to monitor the config sync with "tmsh run /cm watch-devicegroup-device" (https://support.f5.com/csp/article/K13946) to see if you have the latest commit id?

 

 

2.Also check the bug tracker for config sync issues that match your own(there willl be several articles but for some time you will be able to check them):

 

https://support.f5.com/csp/bug-tracker

 

 

 

3.Also I have seen issues where because of the recreating of the HA trust the system certificate is added many times that makes F5 go nuts, so you may try deleting the HA trust then cleaning peer certificates from the two devices, recreate the system certificate on the two devices and again build the trust domain.

 

 

https://support.f5.com/csp/article/K16951115

 

https://support.f5.com/csp/article/K13946

 

 

4.The final thing I can think of is mcpd reload if nothing else works and known bugs are discovered:

 

https://support.f5.com/csp/article/K13030