New Asus RT-AX88U Slow Upload speeds on Wifi only

[Piel]

FWIW, I have the exact same issue with a 400 u/d connection on FiOS with an XT8 system - I can only get 500/250 on any wireless device while I get full speeds on wired connections. It's definitely an ASUS issue - one they are aware of - and they have done nothing to resolve this.

 

[L&LD]

Sorry, I may be repeating this question. Has a full reset been performed yet?

Fully Reset Router and Network

Best Practice Update/Setup Router/AiMesh Node(s) 2021

 

[IdleWild]

Is full reset needed for out of the box router+Merlin firmware? Also at 2.4Ghz SSID I'm getting 100/100, so upload is higher than at 5Ghz.

 

[L&LD]

Yes, a full reset is needed anytime you flash from stock Asus to RMerlin firmware (or vice versa), regardless.

 

[IdleWild]

Yes, a full reset is needed anytime you flash from stock Asus to RMerlin firmware (or vice versa), regardless.

Is it OK to save the settings via admin menu, and restore them after reset?

 

[L&LD]

No.

 

[IdleWild]

Ok, I've reset router. No changes in wireless behavior. Maybe it's something very specific to my note9. I'll need to test another AC device..

 

[leerees]

Set the channel to "160mhz only". This will stop the issue of slow upload speeds.

 

[IdleWild]

Set the channel to "160mhz only". This will stop the issue of slow upload speeds.

I believe if you lock it down to just 160MHz than the only devices that will be able to connect will be those that are capable of 160mhz wifi6?

 

[L&LD]

No, it won't.

 

[Piel]

Set the channel to "160mhz only". This will stop the issue of slow upload speeds.

No dice for me on an XT8 system

 

[zackattack784]

i'm still using 384.17, which is what I had when I started this post. Still having slow uploads as well. I've just accepted the 160-200Mbit limit my iOS devices were seeing. I still have to update to 384.19, but since I usually do a factory reset after upgrading firmware I needed to backup all my settings and that takes me so long to manually take screenshots of every settings page before wiping it all.

Anyone have a tool that exports settings to a log to make it easier to know every setting I had prior to factory reset?

You ever figure this out? I just got 300/300 Fios and I’m having the exact same issue with my iOS devices an an AX88U. Upload maxes out around 250 whereas my laptop usually pulls close to 340 up.

I have a mix of ax and ac Apple devices and all are the same. I’ve literally tried changing every setting I could think of and no dice.

 

[SAL9K]

With a 2019 macbook pro, ax86u, stock f/w 49447, without changing any defaults after full reset, router chooses ch40/80Mhz, I get the below on WLAN-LAN iperf3 upload (download is about the same, about 15 ft from router line of sight). I only have a 300/10 Mbps (down/up) ISP plan, so can't do an upload WAN speed test fast enough to compare. Also, an iPhone 6 (yes, super old) does 300Mbps (yes, 300) upload as well from the same location. Interestingly, the iPhone upload drops to 200Mbps when the # of iperf3 streams is >1, so it can't deliver data fast enough when it opens multi-streams.

Do you get the same speed results when you select a "single connection" on Ookla Speedtest? Also, someone on a different thread was getting slow'ish ax86u throughput and packet loss with AiProtection enabled.

$ iperf3 -c 10.1.1.10
Connecting to host 10.1.1.10, port 5201
[  5] local 10.1.1.148 port 63250 connected to 10.1.1.10 port 5201
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  83.8 MBytes   703 Mbits/sec         
[  5]   1.00-2.00   sec  90.1 MBytes   756 Mbits/sec         
[  5]   2.00-3.00   sec  83.6 MBytes   701 Mbits/sec         
[  5]   3.00-4.00   sec  77.9 MBytes   654 Mbits/sec         
[  5]   4.00-5.00   sec  76.7 MBytes   642 Mbits/sec         
[  5]   5.00-6.00   sec  84.0 MBytes   705 Mbits/sec         
[  5]   6.00-7.00   sec  89.1 MBytes   747 Mbits/sec         
[  5]   7.00-8.00   sec  89.5 MBytes   751 Mbits/sec         
[  5]   8.00-9.00   sec  88.5 MBytes   743 Mbits/sec         
[  5]   9.00-10.00  sec  84.8 MBytes   711 Mbits/sec         
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-10.00  sec   848 MBytes   711 Mbits/sec                  sender
[  5]   0.00-10.01  sec   846 MBytes   709 Mbits/sec                  receiver

iperf Done.

 

[zackattack784]

So discovered something odd. With Ookla I still tend to max out at 250 upload or so. But using Verizon’s speed test I can hit 340 up which matches my wired upload speed. I did confirm it is testing through my phone and not at the router so maybe this isn’t a Wi-Fi issue at all and more an ookla issue?

 

[L&LD]

Always use multiple 'speed test' sites. And be sure to take any single test with a huge grain of salt.

 

[zackattack784]

More oddness. Still fine on the wired side but all my wireless devices are now maxing out at 150 on the upload. Both ookla and verizon speed tests confirm it. I think I’m starting to believe there is an issue with Fios and Asus routers.