WR3000P 5GHz Wireless Speed Issue

Installing and Using OpenWrt Network and Wireless Configuration
1

Hello everyone.

I have a Cudy WR3000P v1 (ARMv8 Processor rev 4 - mediatek/filogic - OpenWrt 25.12.4) and i'm facing a rather funny issue.

Its WAN port (2.5G) is connected to an 1G port on my main router and using it only as AP/switch. The Cudy is operating as an AP/Switch only, so no routing, no firewalls, no nothing.

There is a 5Ghz interface configured at AX/auto/160MHz, usually sitting at Channel 36 since i live in a rural area and the closest building to my house is more than 50m away so there's no interference, etc.

Everything else is in the default state regarding the wireless interface.

I have tried literally everything i could imagine and i cannot get more than 65-70Mb/s when trying to transfer a file from my server (connected to another port on my main router) to my laptop wirelessly. If i plug my laptop to any wired bridged port of the Cudy...boom! I get 105-110Mb/s which is perfectly fine since my main router has only gigabit ports. But no matter what i do wirelessly, i cannot get the gigabit speed i should get.

The link stats shown on both my laptop and the OpenWrt are between 2100-2400Mbit/s. The laptop's adapter is an Intel Wi-Fi 6E AX211 160MHz. However it makes no difference at all since i have also tried to transfer files (either many or a huge one) between my iPhone 17 Pro and the server. I got the same result.

I also made my laptop to act as an SMB server so as i can transfer a file from the iPhone to the laptop, first test was with both the devices wirelessly connected to the Cudy and the second test was with the laptop connected to a wired port. Again the same 65-70Mb/s threshold.

I have watched the CPU during these transfers and it has never exceeded 0.3 usage. I also tried with WPA3, WPA2 and mixed. I even tried moving the Cudy to different locations, away from obstacles that may cause interference, etc. I've also messed with every setting possible in the wireless interface. Always the same result!

I didn't spent much time with the default Cudy firmware but the moment i unpacked the device, i performed a simple internet speedtest using my iPhone next to it and i got 950Mbps (i have a gigabit internet connection).

What am i missing here? I hope i described everything in detail in case anyone can help me or even point me to the reason i see a 2.4Gbps link between my devices and the Cudy but i am only able to use 70Mb/s in reality.

Thanks in advance!

2

Set the country, it will submit to local regulations.
Don't set channel to auto but to 36.
Don't use WPA3/SAE, stay with WPA2

3

are we confusing Mb with MB here ? Getting 105Mb (megabits) on a wired connection is not right, but 105MB (megabytes) is about right for a gigabit link.

I have a WR3000H being used in a similar setup i.e as a dumb AP, albeit its running 25.12.2 and as @badulesia suggests its using WPA2. As you, the WR3000H 2.5Gb port is only connected to a gigabit port on my primary router. AFAIK the WR3000H is a similar spec to the WR3000P i.e mediatek filogic 820 abeit with only 256MB ram as opposed to your 512MB.

My 5ghz channel width is set for 80Mhz and using my laptop with an AX210 NIC, I get around 750-800Mb.

Connecting to a wired port on the WR3000H gives close to the 900Mb limitation of my FTTP connection.

4

:+1:

I'm also in the almost same config as you : WR3000H as an AP, laptop with intel AX201. As I have a full 2.5 Gb/s network, I linked the 2.5 Gb/s port into the LAN bridge. This way the AP receives data and brodcasts wifi much faster. With 160 MHz, it can acheive a tremendous 170 MB/s :sweat_smile:

5

Yes, I've got the wan (2.5Gb) port and 3 of the lan ports in the LAN bridge with the 2.4ghz & 5ghz wifi primary SSIDs . The other LAN port and a separate 2.4ghz wifi SSID are part of an IOT bridge to separate them from the main LAN.

I didnt see much improvement using 160MHz, possibly due to being limited to 1Gb anyway. So I used 80Mhz on channel 56 to keep it away from adjacent networks