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Philips Telemetry WL2 medical device can't connect

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Information

 
TitlePhilips Telemetry WL2 medical device can't connect
Symptoms
Philips Telemetry WL2 medical device can't connect
Environment
  • ExtremeWireless
  • Firmware 10.41.09
  • AP39xx
  • Philips WL2 (Atheros 6002 chipset)
  • Antenna diversity
  • Philips WL3 works fine (with alternate Atheros chipset)
  • TX chains
Cause
WL2 device cannot cope with antenna diversity (simple switched diversity or MIMO diversity) What is antenna diversity and how does it help 802.11 performance
Resolution
Additional notes
Note that this is a very specific issue with this device and there is no relation between this WL2 device and Siemens WL2 phones.  This is not a bug in Extreme software, it is a severe limitation of the Phillips device.

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