KB89847
Published: August 17, 2021
Revision: 2.0

Unstable connection to MQTT broker using CA-signed or self-signed root certificate


Applies To:

Firmware for the following groov EPICs:

  • ​GRV-EPIC-PR1
  • GRV-EPIC-PR2
Firmware for the following groov RIOs:
  • GRV-R7-MM1001-10
  • GRV-R7-MM2001-10

Versions Affected:

groov EPIC: 3.1.0 to 3.2.1
groov RIO: 3.1.0 to current

Resolved In Version:

groov EPIC: 3.2.2


Symptoms:

After you complete the following steps, the MQTT client connection to the broker might be unstable (connecting and disconnecting erratically):

  1. (Optional) You create a self-signed MQTT client certificate and private key file. Then, you upload the public certificate using groov Manage..
  2. You correctly configure the broker to use SSL and select either:
    • the self-signed MQTT client certificate and private key file you created in step 1, or
    • a root CA-signed client certificate and private key file.

Resolution:

Opto 22 has resolved this issue and will include the fix in an upcoming release.

Questions?

Contact: Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com


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