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FN-415: WS-C35 (30135) WLAN Appliance may fail due to degradation of a clock signal

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TitleFN-415: WS-C35 (30135) WLAN Appliance may fail due to degradation of a clock signal
The product will stop functioning, will not boot, and is not recoverable
  • Product Description:  WS-C35
  • Marketing Part Number:   30135
  • Mfg. Part Number (Shipping Number) and Rev: 908302-10 (Mfg Rev 5J and earlier are affected)
A component integral to the design and operation of the product has a known manufacturing defect wherein a clock signal can degrade over time.
Extreme Networks will offer advance hardware replacement for affected product with Mfg Rev 5J and earlier (see ‘Identification of Hardware Revision’ below)

Replacement requests should be submitted by June 9th, 2017 (NOTE: replacement requests received after June 9th, 2017 will be honored)

Requesting Replacement Product:
To request a replacement for your affected product, visit the Extreme Support Web site (, and login to the Portal to open a case to ‘Request a Hardware Replacement’. In the ‘Description’ field, please include ‘Field Notice-415’ to ensure proper processing.
For further assistance, contact GTAC at:
NOTE: Extreme will prioritize orders based on the product’s time in operation, due to the age-based nature of the failure. Fulfillment requests may take an extended time. Customers are reminded to return equipment promptly after receiving the replacement.
Identification of Hardware Mfg Revision:
Label is located on bottom of product.

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The last two digits of the Shipping number are the Mfg Rev of the product. Mfg Rev 5J and earlier are affected

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To Remotely determine product Hardware Version:
Log into the C35 Wireless Assistant. From the main page, browse to Reports -> Controller Status -> Manufacturing Information. The Hardware Revision is displayed as shown below. 

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Affected Product:
Hardware Revision = 01    (corresponds to manufacturing revision 5J and earlier)

Fixed Product:
Hardware Revision = 02   (corresponds to manufacturing revision 5K and later)


Additional notes
See FAQ Article here:  WS-C35 Clock Issue - FAQ

Legal Notice:
This advisory notice is provided on an “as is” basis and Extreme Networks makes no representations or warranties of any kind, expressly disclaiming the warranties of merchantability or fitness for a particular use. Use of the information provided herein or materials linked from this advisory notice is at your own risk. Extreme Networks reserves the right to change or update this document at any time, and expects to update this document as new information becomes available. The information provided herein is applicable to current Extreme Networks products identified herein and is not intended to be any representation of future functionality or compatibility with any third-party technologies referenced herein. This notice shall not change any contract or agreement that you have entered into with Extreme Networks.




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