Field Service Bulletins

Field Service Bulletin

Potential issue with R-Series routers defaulting the MAC address

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Document Number:

FSB9074

Revision:

001v000

Application:

Global

Effective Date:

December 27, 2018

Expiry Date:

N/A

Bulletin Type:

Warranty Service

Informational

Customer Specific

Severity Recommendation:

High – Perform immediately

Medium – Perform at next scheduled maintenance

Low – Perform when system exhibits symptoms

Subject:

Potential issue with R-Series routers defaulting the MAC address

Model / System Affected:

cnPilot-R190 / cnPilot-R200 / cnPilot-R200P / cnPilot-R201 / cnPilot-R201P / cnPilot-R201W

Reason for Bulletin:

There is a potential issue for customers who have received Cambium R-series devices with the new Cambium OUI 58:C1:7A. If such customers downgrade their devices to firmware 4.4 or below then their device MAC address can be defaulted to a fixed address.

NOTE: Customers who have NOT downgraded the device firmware and have upgraded their devices to 4.4.1 or newer firmware will remain unaffected with this issue.
NOTE: Devices with older Cambium OUI 00:04:56 (MAC 00:04:56:xx:xx:xx) are unaffected with this issue.

Resolution:

Cambium has a recovery procedure for the affected customers which will enable them to recover all affected devices using an auto-provisioned script. Affected customers can contact Cambium support and provide a list of their affected devices Serial# / MAC addresses for assistance.

It is highly recommended for all customers to upgrade their units to 4.4.2-R2 firmware. This will prevent any issues.

If you have questions or concerns, please contact Cambium Technical Support at the following: https://www.cambiumnetworks.com/support/contact-support/

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