Slow wifi speed on AWB5142

Datasheet states the device supports 802.11ac (which is what I programmed at 80Mhz).

The AP is connected to a 100Mb switch port.

When I'm standing within 10' of the antenna in direct sight, the best result I can get with Iperf3 is approx 25Mbps. When I move approx 50'-100' away it gets to the low 10Mbps with a lot of packet loss.

Isn't this product able to broadcast in the range of 800Mbps? (I knoiw my switch is only 100Mb, but I would expect somewhere closer to the 75Mbps bandwithd).

Furthermore, I tested at the same site a Bullet with the same results. When I brought the bullet home with my cheap commercial router, I've been able to measure 50Mbps on IPerf3.

So 2 questions:

1- Am I wrong to expect bandwidth of at least 75Mbps at 100' of the AWB5142?

2- How to know if the speed limitation is caused by crowded 5Ghz band in that building? Can I prove it without having to turn off the other wifi networks?

Thanks to whoever can help!

Franziska Gültig

October 07, 2024 08:07

Hi FG Cuillerier,

Although I'm not specialized in this product, I would recommend surveying the local network environment using a tool that can analyze which bands are in use and how many devices are utilizing them.

For instance, I have used the WiFiMan app for Android for this purpose. It can scan both the 2.4 GHz and i think also 5 GHz bands, helping you map out which channels are being used by nearby devices.

Then, you can see if any devices are configured to use multiple channels, as these devices will occupy all of them. If another device is operating on even one of the same channels, interference can occur. To optimize performance, it's always best to identify an unused channel and configure your device to use that one.

When multiple Access Points (APs) share the same channel(s), packet collisions and packet loss can happen, leading to degraded performance.

If you have any further questions, feel free to reach out, and we can escalate this to a Support Ticket if needed.

Best regards,

i.A. Franziska Gültig

Slow wifi speed on AWB5142

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