What's new
  • SNBForums Code of Conduct

    SNBForums is a community for everyone, no matter what their level of experience.

    Please be tolerant and patient of others, especially newcomers. We are all here to share and learn!

    The rules are simple: Be patient, be nice, be helpful or be gone!

Low throughput on Asus RoG BE-92 USB adapter

Jasperx

New Around Here
Hi, everyone, new here. This looks like the place to be for anything Asus related though, so I figured I'd ask for some opinions here.
Basically I recently got the Asus BT8 WiFi7 router and the Asus RoG BE-92 USB adapter (not the nano version, I already saw the topic for it and what a scam that thing is. I mean a wifi7 adapter with a usb 2.0 interface, seriously? I wanna say wtf. Can I say wtf? :D But anyway, this one is marketed as BE6500 - with a 5 gig usb connector and admittedly only 160MHz channel support which I was aware of and fine with at the time of purchase). Yesterday I found out however that its maximum ceiling speed is apparently only 2880Mbps, according to Dongknows. So even with MLO active, it still can't fully utilize the usb3 port bandwidth. Now that part is just false advertising imho, but that's not why I'm here. Just leaving it as a side note / customer beware thing in case anyone comes across the thread and is thinking of buying one (it is a $100/€ adapter after all and by the looks of it there are better offerings out there). If anyone actually managed to get more than that with MLO active please do report back. I tried placing the BT8 in the place of my router but the signal was pretty bad and I wasn't breaking 2882Mbits even with MLO active on the official firmware (the actual throughput was 300ish I wanna say? I don't remember but it was bad. Could've even been 30 lol).

But anyway, I'm here because I'm only getting 500-700mbit throughput instead of the expected 1.2/1.4gbit, no matter what I do.

First a little bit of backstory. My internet connection is 2gbits. My ISP router is a ZTE F8648P 4x4 ax ruter and as a freebie I got a ZTE H3601P ax 2x2 repeater which is EasyMeshed to the main unit. I live in an apartment one story above and the signal from the main 4x4 router on 5ghz is horrendous, which is why I need a repeater. The 2x2 ax repeater (mu-mimo capable) is sitting ~2 meters below my pc but there's a ceiling in the way. Windows reports a link speed of 2401/2401 on 5Ghz and the signal strength is excellent but fast.com isn't breaking 600Mbits for the most part, sometimes it dips into the low 700s. So I thought fine, there's a ceiling in the way, I'll just blame it on signal attenuation.

Which leads me to the BT8. To be frank and honest, I only got it because it's the only WiFi7 router with OpenWrt support (in addition to the BananaPi-R4 but that's irrelevant right now). The official Asus firmware doesn't support wireless repeater mode (yes I know it cuts the throughput in half but sometimes it's just the go-to option, like in my case where a cable isn't an option). I totally consider that a cash grab since you're basically forced to buy another unit to form a mesh network (which I don't really need but kinda want anyway, just not in the manner Asus envisioned). I loathe the idea of proprietary tech in general, mesh networks being one of the worse offenders in that regard over the recent years. I mean we already have 802.11s, there's EasyMesh, I don't want to use Asus' AI Mesh (or whatever other vendor/brand proprietary mesh for that matter) they're trying to lock us in to. Eventually I'd like to get a couple 4x4 units and build a 802.11s mesh with OpenWrt but that's besides the point.

Long story short, I placed the BT8 with OpenWrt installed in the hallway directly above the main ZTE in wireless repeater mode with a 5Ghz ax backhaul (the BT8 is 3x3) and I have it broadcasting a 6GHz network in my apartment. Windows reports a link speed of 2882Mbits and the signal strength is excellent (full bars on the taskbar). So I installed iperf3 on the router and checked the numbers.

Code:
iperf3.exe -c 192.168.100.100
Connecting to host 192.168.100.100, port 5201
[  4] local 192.168.100.93 port 2148 connected to 192.168.100.100 port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec  58.0 MBytes   485 Mbits/sec
[  4]   1.00-2.00   sec  68.8 MBytes   576 Mbits/sec
[  4]   2.00-3.00   sec  72.8 MBytes   611 Mbits/sec
[  4]   3.00-4.00   sec  74.5 MBytes   626 Mbits/sec
[  4]   4.00-5.00   sec  75.6 MBytes   634 Mbits/sec
[  4]   5.00-6.00   sec  75.0 MBytes   629 Mbits/sec
[  4]   6.00-7.00   sec  71.4 MBytes   599 Mbits/sec
[  4]   7.00-8.00   sec  73.8 MBytes   619 Mbits/sec
[  4]   8.00-9.00   sec  73.1 MBytes   613 Mbits/sec
[  4]   9.00-10.00  sec  72.2 MBytes   607 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-10.00  sec   715 MBytes   600 Mbits/sec                  sender
[  4]   0.00-10.00  sec   715 MBytes   600 Mbits/sec                  receiver

There's like half a foot of a wall blocking direct line of sight to the adapter so again, thinking it was attenuation I brought the BT8 one meter away from the adapter and ran iperf again:

Code:
iperf3.exe -c 192.168.100.100
Connecting to host 192.168.100.100, port 5201
[  4] local 192.168.100.93 port 2155 connected to 192.168.100.100 port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec  53.6 MBytes   449 Mbits/sec
[  4]   1.00-2.00   sec  66.6 MBytes   559 Mbits/sec
[  4]   2.00-3.00   sec  67.4 MBytes   564 Mbits/sec
[  4]   3.00-4.00   sec  71.0 MBytes   596 Mbits/sec
[  4]   4.00-5.00   sec  75.8 MBytes   636 Mbits/sec
[  4]   5.00-6.00   sec  70.6 MBytes   590 Mbits/sec
[  4]   6.00-7.00   sec  70.9 MBytes   596 Mbits/sec
[  4]   7.00-8.00   sec  72.9 MBytes   612 Mbits/sec
[  4]   8.00-9.00   sec  74.4 MBytes   624 Mbits/sec
[  4]   9.00-10.00  sec  77.2 MBytes   649 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-10.00  sec   700 MBytes   588 Mbits/sec                  sender
[  4]   0.00-10.00  sec   700 MBytes   588 Mbits/sec                  receiver

Exact same numbers more or less. I'd be expecting something in the 1.2/.1.4gbits in virtually ideal conditions. In hindsight, I should've been getting those numbers even with the ISP's repeater since it's mu-mimo capable no? The main router broadcasts at 4.something gbits. The repeater catches that at 2400 and rebroadcasts it at 1200 which my client should be getting. Roughly. Same with the BT8 except the BT connects at 3602mbits to the main router since it's 3x3. But I should be getting at least 1.2 (if not the "full" 1.4 on 6GHz)? Fast.com did spike to 1.1/1.2/even 1.4 but it was for mere seconds in the dozens of tests I've done. 99.99% of the time I'm getting literally half the speeds I should be getting. And yes everything is using 160Mhz channels.

Any ideas? Any owners of the same adapter getting better speeds than me? There's a guy over on openwrt forums that's getting a constant 1.6gbits with a Netgear A9000 (uses a mediatek 7925 chip), also with openwrt firmware installed on his bt8 so it doesn't sound like it's an openwrt thing (his ubuntu pc with integrated qualcomm wifi7 gets 500mbits-1.3gbits, but that can easily be blamed on the linux drivers). And I'm not using a qualcomm's chipset and I'm using Windows 11 24H2, not linux. So I dunno, any ideas? :/
 

Latest threads

Support SNBForums w/ Amazon

If you'd like to support SNBForums, just use this link and buy anything on Amazon. Thanks!

Sign Up For SNBForums Daily Digest

Get an update of what's new every day delivered to your mailbox. Sign up here!
Back
Top