Tp-Link Archer C7 UDP packet loss over switched interfaces

[azhiltsov]

Hello.

I have the TP-LINK Archer C7 v2 flashed with Gargoyle 1.9.0
On one of the LAN ports I have a NAS (NFS) on another an Dune HD.
I noticed that some files do not play smooth and start investigating this.
With set of test files I realise that I cannot play back files with encoding rate over 60Mbps.
In order to exclude the source and destination problem I connected two laptops and tested performance using iperf3.
It works good up to 700Mbps using TCP.
However it barely can deal with UDP speeds above 50Mbps.
I noticed a huge packet loss (over 14%, up to 25%) and with rate over 300Mbps wrong packet order as well.

In order to exclude router hw issue i flashed it back with TP-LINK (150427).bin and problem dissapeared.

Could anybody advise?

[Lantis]

Please test with openwrt as well to rule out Gargoyle

[azhiltsov]

Right.
OrenWRT has the same issue. Will report this to upstream then.
Thanks.

[ispyisail]

Right.
OrenWRT has the same issue. Will report this to upstream then.
Thanks.

Thank you