KB91345
Published: August 26, 2026
Revision: 2.0

mDNS/Bonjour hostnames only register after restart


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
  • GRV-R7-I1VAPM-3

Versions Affected:

4.0.0 to 4.1.2

Resolved In Version:

4.1.3


Symptoms:

EPIC and RIO should automatically register a Multicast DNS (mDNS)/Bonjour hostname when you change your device’s hostname. With this issue, your EPIC or RIO does not register the mDNS/Bonjour hostname until you restart it.

Workaround:

Restart your EPIC or RIO with any of the following options:

  • In a browser, connect to the device using its IP address, then log into groov Manage and click System > Restart.
  • For EPICs, if you have physical access to the processor, use the touchscreen to log in, then tap System > Restart.
  • Cycle power:
    • For EPICs, if you have physical access to the processor, you can turn the power button off, wait 10 seconds, then turn it on.
    • For RIOs, if you have physical access to the module, you can try one of the following:
      • If connected via Power over Ethernet (PoE), disconnect the Ethernet cable, wait 10 seconds, then connect it.
      • If connected to a separate power supply, disconnect the power supply, wait 10 seconds, then connect it.

Resolution:

Opto 22 has resolved this issue.

Questions?

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


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