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Forum Discussion

Thiago_Theodoro's avatar
Thiago_Theodoro
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Jan 21, 2020

BIG-IQ CM doesn't discover DCD

Hi team!   I have a CM and 2 DCDs on my Azure environment, but I can't seem to discover the second DCD.   It gives me the message "Master key differs" even tho I configured all of them equaly...
application delivery
Azure
BIG-IQ
cloud
Lidev's avatar
Lidev
Icon for Nacreous rankNacreous
Jan 22, 2020

Hello Thiago,

 

Yes ,it's often due to a mistyped passphrase.

During the initial setup of you BIG-IQ you chose a specific master key passphrase, you need to use this same passphrase during the initial set-up of other BIG-IQ or DCD systems before they get discovered.

 

Have you try to followed the K10799025 to solve your issue ?

  • Thiago_Theodoro's avatar
    Thiago_Theodoro
    Icon for Nimbostratus rankNimbostratus
    Jan 22, 2020

    Hi Lidev! Thanks for the answer!

     

    Yeah, I've tried everything to be honest. And the passphrase isn't mistyped sinced I wrote it down in a notepad and CtrlC'd CtrlV'd it on CM and DCDs.

     

    Doesn't make sense since one DCD is ok and running and the other one simply doesn't discover and yet it gives me this error.

    • Lidev's avatar
      Lidev
      Icon for Nacreous rankNacreous
      Jan 22, 2020

      what version of the BIG-IQ/DCD do you use?

    • Thiago_Theodoro's avatar
      Thiago_Theodoro
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      Jan 22, 2020

      The version is 6.1.0

    • Lidev's avatar
      Lidev
      Icon for Nacreous rankNacreous
      Jan 22, 2020

      Fine.

      Did you see the comment on step 20 of Deploying a Data Collection Device and respect the process ?

      https://techdocs.f5.com/en-us/bigiq-6-1-0/big-iq-centralized-management-plan-implement-deploy-6-1-0/deploying-a-data-collection-device.html#GUID-8B0472C1-16CF-4D9A-9D38-DC592368BB20

       

      "If you are setting up a Microsoft Azure VE, and you type an entry in any of the fields, you will not be able to continue successfully. The only way to proceed is to leave all of the fields empty and click the Next button at the bottom of the screen. This allows the system to use the first-time access credentials you specified previously."