[OpenWrt-Devel] Random drop in throughput and drop in A-MPDU

Carlito Nueno carlitonueno at gmail.com
Mon Mar 4 15:27:25 EST 2019

Hi all,

I am running openWRT 18.06 on:
QCA9880 + QCA9558
driver: ath10k_pci
version: 4.9.111
firmware-version: 10.2.4-1.0-00033
AP is a dumbAP with three SSIDs on three different VLANs.

I am experiencing a random drop in A-MPDU and loss in throughput on
random clients. All clients start of with good throughput and suddenly
one of them experiences a complete drop in speeds. fast.com shows 0
Mbps (says "maybe you are not connected to the internet"), iperf3
speeds are 0.0 Mpbs.

Disconnecting and reconnecting the STA solves it but some other client
experiences the same issue.

Here are screenshots of the wireshark captures before and during the drop:


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