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

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Rio
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Apr 18, 2026

Big IP licensed with wrong Base Registration Key

 

A Standalone big IP(APM) already in use; after Upgrade was unable to be  licensed and it was discovered it was initially deployed and licensed with the base reg key meant for another big IP(LTM), F5 support assisted to get the correct Base Keys. However i was told i will have to manually reconfigure the Big ip after i license it and UCS restore wont work. is there a way i can reconfigure with the help of UCS.

2 Replies

  • You can load ucs with no-license option. Did you try it?

     

  • You can save the existing config file as a UCS, then activate the correct license, and after that run load sys ucs <ucsname> no-license. This

    allows you to load only the configuration from the UCS without applying the license stored in that UCS.