I'm seeing this issue with a client who is using the latest Microsoft SurfaceBook Pro (Marvell Avastar AC) with Aruba IAP515. The client is seeing very poor performance in streaming applications to their projector using AirTame.
On other devices (tested with Macbook, MBP, Lenovo Yoga X1) and they're buttery smooth.
On the Microsoft device, we often lose video performance and lose audio altogether.
In a promiscious packet capture, we're seeing repeated block acks for the same sequence number... In one of the packet captures, we had 524ms there’s just block ack requests from the Surface Book 2 for SSN 1319, and block acks for SSN 1319 from the Aruba 515 ( see screenshot below)
Also, we have experienced wireless performance decline : Surface with Aruba APs For some reason, APs send BAs with Block Ack Bitmap all zeroed against BARs and Data Frames received from Surface.
Any thoughts on the above?