• HW : WLC5508 / version 7.0.98.0

  • WCS / version 7.0.164.0

  • MSE 3310 / version 7.0.105.0

  • AIR-LAP1262N-A-K9 / version 7.0.98.0

  • vWLC 8.3.141.0

AP1262(7.0.98.0) needs to access to vWLC(8.3.141.0)

Because of ‘%DTLS-4-BAD_CERT: Certificate verification failed’, APs couldn’t establish the connection with vWLC

Circumstances

Upgrade WLC from 7.0.98.0 to 7.3.x.x above, then, access vWLC(8.3.141.0)

Lightweight Access Point(LAP) doesn’t have capability to handle Self Signed Certificate(SSC) for CAPWAP

After upgrading LAP to 7.3.x.x can have DTLS connection with SSC

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Upgrade AP IOS manually by TFTP

If you are unable to upgrade WLC as stated earlier, you can do only manually upgrade.

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