Speed problems on WiFi after 200mb/s upgrade

[newby_investor]

Not really. I live in a leafy suburb where plot sizes are typically between 500m2 and 1000m2, and if I run Wifi Analyzer on my phone I have about 10 different SSIDs on the 2.4Ghz band all overlapping. If I look at the 5Ghz band I can only see 2 other SSIDs, and they're both on completely different non-overlapping channels to me. I've got a 200Mbps fibre connection, and if I run a speedtest while standing next to my access point and connected to the 2.4Ghz band I can barely get about 70Mbps down. On the 5Ghz band I can get my full 200Mbps down easily.

Overcrowding on the 2.4Ghz band is a major problem wherever you are, unless you're on a farm in the middle of the Karoo.

It's not just wifi. Bluetooth uses that general range, as do a lot of other things, like many wireless keyboards / mice / headphones. Xbox controllers might also, I think.

Your microwave also emits strongly at 2450 MHz. ;-)

 

[rh1]

Hi guys

Stumbled on this thread.. Anyway, an Openserve contact told me when I was experiencing the same issue is that the 2.4Ghz spectrum is so oversaturated with remote toys, car remotes, gate remotes and bluetooth, that if you can run on 5Ghz. If at all possible run your laptop/desktop with 1000Gbit ethernet to your router

Or you can download a wifi channel analyser app and make informed decision, based on your specific requirements. 5Ghz has a very short distance and may not be the right advice to everyone. I have both 2.4 and 5 activated, I selected channels that was the least congested and gave the best signal.

 

[Geoff.D]

The way in which you're supposed to interpret WiFi speeds is take whatever's on the box and halve it. That's your max rate for upload and download. 150Mbps in either direction.

However, there are compounding issues. The first is that the devices you test with may only be able to use one spatial stream (which for most routers, means one antenna per spatial stream). One spatial stream with 20MHz bandwidth at MCS level 7 gets you 72.2Mbps real-world theoretical bandwidth. 40MHz of bandwidth gets you to 150Mbps with a single spatial stream.

Divide by two to get the theoretical upload and download speeds for full-duplex communications.

If your device can connect to and mix two spatial streams, this makes things a lot easier. 802.11n on most routers was a max of two spatial streams at MCS7 with 40Mhz of bandwidth (because it was cheaper), which is where we get 300Mbps as the max for that standard. Some routers will do 802.11n at 450Mbps with three spatial streams, but those are rare.

Two spatial streams means you can use one stream for download and one for upload. 150Mbps full duplex communications. Your AP-LR is capable of those speeds for WiFi clients talking to each other.

This gets more complicated when you get into the meat of the 802.11 standard where the modulation and coding of packets starts making a big difference, and where devices are power-limited and constrained by size, and can only send data at half the speed they receive it.

There's more. Early 803.2af devices like your old Ubiquiti AP could only connect at 100Mbps over Ethernet. It didn't matter how long the run was or if it was shielded CAT6a cable, you were limited to 100Mbps communications because of how the standard was designed. Gigabit PoE came considerably later.

So on the Ubiquiti AP, the most you'll ever get out of it is 100Mbps to the internet, and 150Mbps to other devices on the same AP.

Are you on a 200/100 package?

Excellent post.
The point is, previously, the last mile technology and or service availability was the constraint. Once you move to a service beyond 100 Mbps, the next weak link is exposed, which is now the devices you have at home. And, wireless devices for home use are all border line junk. Very few manufacturers exploit the technologies to their fullest anyway. Consumer electronics is mostly rubbish.
Hence, why if you are really serious about exploiting whatever service you have signed up for, you need to go back to carrier grade LAN equipment hardwired connections.