I'm using AirPcapNX to sniff 2.4Ghz clients, dongle configured for channel 1,+1. (Channel 1 - 40Mhz)
Test is to sniff my connection while downloading a 2MB file with success from server to client.
Traffic from Client to AP:
Traffic from AP to Client:
->I'm missing all data packets coming from the AP to my client. (2MB file download!)
My guess is that they're being sent over 40Mhz and AirPcap is missing them?
This work perfectly in 5Ghz, where with 36,+1, I see 802.11n packets when needed.
Anyone has tried AirPcapNX + 2.4Ghz + 802.11n ?
asked 05 May '15, 07:22
edited 06 May '15, 10:36
This connection was made with 20Mhz bandwidth, without Short Guard Interval nor Greenfield (as the beacons says).
But AirPcap only supports 2 spatial streams, and at 195Mbps the client is using 3 spatial streams, cf www.mcsindex.com
This missing spatial stream is the best guess to explain those missing data packets for the moment.
answered 14 May '15, 04:44