AX88U will only connect at 80Mhz

[antik]

I previously had an AX3000 and my 2x2 AX laptop would always connect at 2.4Gbps. I’ve replaced the AX3000 with an AX88U, and I’m running the same settings, however my laptop will now only connect at 1.2Gbps.

I’ve got Wireless Mode set to N/AC/AX mixed, and Channel Bandwidth set to 20/40/80/160Mhz. It’s only when I force Channel Bandwidth to 160Mhz that I’ll be able to connect at 2.4Gbps.

Why won’t my laptop connect to the AX88U at 2.4Gbps like my AX3000 did, without forcing 160Mhz?

 

[Ripshod]

Would you benefit from 160MHz? All those LAN and WAN connections are only 1Gb, so unless you have a LAG(LACP) connection from your router to a NAS or similar you'll never notice the diference.

*edit* Mine will run 124/160 without fuss once the initial testing is done, but I choose to use 149/80 as it's all I need and the range is better.

 

[Tech9]

I previously had an AX3000 and my 2x2 AX laptop would always connect at 2.4Gbps.

It doesn't matter in this case. 2.4Gbps link speed is up to about 1.7Gbps throughput. Both routers have Gigabit ports, or up to 0.94Gbps. Use 80MHz wide non-DFS channels for better Wi-Fi stability. Every 160MHz wide channel on 5GHz needs DFS.

 

[antik]

Would you benefit from 160MHz?

It doesn't matter in this case.

I have a 1Gbps fibre connection, and with a 1.2Gbps link speed, I generally only see about 700Mbps/70% of link speed as actual throughput due to overheads. With a 2.4Gbps link speed I see the full 950Mbps throughput

 

[Tech9]

This is a valid reason. Perhaps different firmware with different radio drivers.

 

[antik]

This is a valid reason. Perhaps different firmware with different radio drivers.

AX88U is running the latest drivers. Wifi drivers are also very recent, and the same drivers as I was running with the AX3000. Possibly a router setting?

 

[Tech9]

If you have clear DFS channels - keep it on 160MHz. Devices capable of 80/40MHz only can still connect.

 

[antik]

If you have clear DFS channels - keep it on 160MHz. Devices capable of 80/40MHz only can still connect.

To check channels I believe you need to use an Android device and an app such as Wifi Analyser? Anything for IOS or PC?