When doing some frame capturing over the air during a voice call, you realized that...

CWNP CWDP-304 Question Answer

When doing some frame capturing over the air during a voice call, you realized that frames on the downlink (from the AP to the client) direction are

not being transmitted with the correct UP value for voice frames, but on the uplink (from the client to the AP) direction are being transmitted

correctly. What's the cause of this issue?

Bad client driver

AP is not receiving enough PoE, thus not using QoS features

Somewhere on the wired network QoS markings aren't being trusted

Faulty antenna on the AP

CWNP CWDP-304 Summary

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