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RAX200: poor WIFI performance
not sure why my primary post was deleted... I bought the RAX200 thinking I would have nice perf with my iPhone 11 Pro max and my iPhone 11, although I managed to get 800Mbps max maybe one time,...
lowrisk wrote:I know that 2.4Ghz is restricted just saying it's not bad result for 2.4Ghz---You're right. Its a good result for 2.4ghz. I'm a little jealous.
But I can't believe that a 802.11ax is getting worst performance than a old 802.11ac router, that's make no sense for me.--If you're getting 590-700mbps and so is your other gear, its doing what it should. If you had a 3x3 or 4x4 antenna ax device (I don't know of any made other than routers), your speeds would be faster. Or even a 2x2 that supports 160hz wide channels. (which the iphone doesn't). Here's how it works: 4800mbps= 160 hz and 4x4 antenna. Iphone has only 80 hz support so max connection would be 2400mbps IF it had a 4x4 antenna. with a 2x2 antenna, max connection would be 1200mbps. Wireless AC was fairly refined by the time wireless AX came out so they were getting the best out of them because it'd been optimized through several generations. Wireless AX is first generation and just passed certification 1-2 months ago. I expect optimizations from both the router and wireless manufacturers.
I actually don't know what the settings (channels wide) for 5Ghz
as you can see on the screenshot, 2.4Ghz I have a option "Enable 20/40 Mhz coexistence" but no other option and nothing at all for 5Ghz---Thats correct for the 2.4ghz. The 5ghz channel width is set by the "up to ***** speed. 20hz=600, 40hz=1200, 80hz=2400, 160hz=4800)
I found some screenshot online but my web interface since different, for example in "Mode" it won't actually tell me the mode but just "up to 4800Mbps for the first 5Ghz channels and 2400Mbps" for the second (not sure why they are different value by the way, can both 5Ghz channels work in the same mode? Not sure why you can't set the 2nd 5ghz radio for 4800mbps. I have the rax200 and I can set it for 4800mbps. It does require the use of dfs frequencies to allow. What region are you set in? Some don't allow dfs frequencies. Have you tried setting it up? I think its default is 2400mbps for the 2nd band.PS , thanks for the articles, quiet interesting, didnt have time to read all but will definitily read that today
I don't use smartconnect, I'm not a big fan of letting the client, especialy mobil devices, chosing the "faster" band.
I made a screenrecording of the speed test (while the other AP was turning off, eventhough the WIFI noise is low, we never know)
both 5Ghz SSID have bad perf, I'm getting more from normal ac AP.
iPhone 11 Pro Max
MacBookPro15,1 (WiFi ac)
on the second video, it's intereseting to see that I have bad perf on the RAX200 Ethernet port, but doing the test twices after, I'm getting a decent speed (WiFi speed are very bad though)
Another thing to try is multiple websites. I've had speedtest.net not max out my gigabit connection over a hardwired line. A lot depends on the server its connecting to.
I usually use speedtest.xfinity.com or speedtest.googlefiber.net as they've both reliably maxed out my connection.
I tried with googlefiber but only get
258 Mbps Down / 85.3 Mbps UPProbably because they don't have a desktop app and also because I'm in Europe and they server is probably in the US.
But anyway, a part of the first test (just when I pluged the ethernet) all the ethernet result are over 900Mbps so don't think there is an issue in this wayWhat I'd try? Removing most of your other gear to see if thats whats causing the issue.
Go modem-RAX200 in router mode.
Its tough to troubleshoot with the RAX200 in AP mode as it isn't doing any filtering/router. its all your other gear (edgeswitch/edgerouter).
So I restore to factory, setup as a router this time,
Got around 400 with both 5Ghz channel, then enabling MU-MIMO, got 700Mbps for the first test and then 590 which is what I'm getting with my other WiFi AC APs
PS: my iPhone 11 Pro Max being the only device connected (I changed the BSSID just to make sure)