Cisco FTD Interface Update Failed with Error “External proxy invoked LwInterfaceAPIupdatePolicy”

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If you are using code 6.2.x and are trying to create new interfaces on your Cisco FTD device, you may receive this error:

“External proxy invoked LwInterfaceAPI updatePolicyEntriesWithDomain method and ran into an unexpected error”

 

That’s quite an error and it just doesn’t really help you troubleshoot at all! I tried rebooting and other solutions to no avail.

Finally, the solution was to delete the zone objects completely and then reconfigure the interface.

Odd one for sure…

 

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