AC87U 5ghz - upload speed much faster than download

[pygh]

Hi,

I got an issue while my AC87U wireless 5ghz connection, the connection self is stable, but the download speed is much slower than upload, in which the download speed is from 400mbps to 550mbps, and upload is from 640mbps to 800mbps.

My wireless card is 4x4:3 and the phy rate is 1.3gbps.

any idea about this?

Thanks.

 

[mattiL]

I had a similiar experience, activating QOS (adaptive, automatic) improved download speed for me.

 

[pygh]

I have Adaptive QoS activated already, it improves a bit, but download still slower than upload( about 200-300mbps slower)

 

[Puppa]

May be a transmission gain issue on your client or just some source of interference near the router specifically.
If you have an external switch near the router, try moving it farther away. There don't happen to be any wall mirrors near your router by any chance, are there?

Sent from my SM-N920V using Tapatalk

 

[thc]

have same problem. im must flash from last merlin fw to last fw from asus oficial. and i enable this.
NAT Acceleration CTF(Cut Through Forwarding) is enabled. AUTO
now is going better .. on my line 500/500 from my it provider i get now on okla test average 480/480 , but upload is sometimes slow(*200-300). or download is sometimes slow.. yesterday i disconenct all an measure speed after flash-reset mem-restart and reset modem from my internet provider(zyxel)
my setup 24/7 lan and wan..
lan port 1- is main windows pc, x99based, port 2 -netgear fs305, port 3 -Zyxel GS1910-24, port 4 -another smal router with 4 or 5 port..ps4,pc..etc
i have average 30+ lan+wan ,clients connected to my asus 87, 22+ is online 24/7
app analysis -on, qos -off
what can i do better ? -)