Develop Bugs

Wifi 802.11n limited to 65Mbps max?

I've stumbled across a number of postings that mentioned people get a maximum throughput of 65Mbps with the Wifi N mode on the Desire. That would make sense as it likely only utilizes 2.4GHz with limited internal antenna capabilities.
What it also means is that 802.11n is pretty pointless compared to 802.11g which already provides data rates of 54Mbps, and reportedly consumes less battery power.
It was also reported that the official Froyo release already activated 802.11n mode, which would make further modifications unnecessary.
My questions in the interest of throwing anything related to 802.11n out of the ROM:
1) does Froyo indeed include N support? (I don't have a N router and can not test it)
2) is N indeed limited to a max data rate of only 65 Mbps on the Desire?
Thanks for reading and hopefully feedback
Mac

I have an 802.11n router and gets a max of only 65 mbps transfer rate using Froyo. I have since disabled N support on my Desire to save some batt life.

Using Pays Froyo 1.9 with enabled N and connecting up to 72Mb/s.
Sent from my HTC Desire using XDA App

mmaacc said:
I've stumbled across a number of postings that mentioned people get a maximum throughput of 65Mbps with the Wifi N mode on the Desire. That would make sense as it likely only utilizes 2.4GHz with limited internal antenna capabilities.
What it also means is that 802.11n is pretty pointless compared to 802.11g which already provides data rates of 54Mbps, and reportedly consumes less battery power.
It was also reported that the official Froyo release already activated 802.11n mode, which would make further modifications unnecessary.
My questions in the interest of throwing anything related to 802.11n out of the ROM:
1) does Froyo indeed include N support? (I don't have a N router and can not test it)
2) is N indeed limited to a max data rate of only 65 Mbps on the Desire?
Thanks for reading and hopefully feedback
Mac
Click to expand...
Click to collapse
Not sure about anyone else, but with 802.11g the phone will connect at roughly half signal to my router, speeds of about 20-25mbps, when i connect via 802.11n the signal is much better and it connect at full 65mbps, though yeah i never get above 65mbps, i think this has to do with the antenna arangement, 802.11n had 3 antennas, and i think the desire only has 1 so the total speed is limited

i´m more interrested in the speed you transfer with on the diffrent modes since i get less than 20Mbit with G from local to local.. and i wonder if i sould invest in N ? does it give higher transferrates ? eg the speed of the filetransfer between comps..

sorry to ask
sorry to ask a noob question, but where again do you check to see the speed of your wireless, I did it once but can't remember how.

Phone *#*#4636#*#*. As to higher WiFi N speeds. We won't get higher speeds that 65-72Mbps because WiFi N mostly operates on the 5GHz band.

lollylost100 said:
Phone *#*#4636#*#*. As to higher WiFi N speeds. We won't get higher speeds that 65-72Mbps because WiFi N mostly operates on the 5GHz band.
Click to expand...
Click to collapse
Thank you.

amf said:
I have an 802.11n router and gets a max of only 65 mbps transfer rate using Froyo. I have since disabled N support on my Desire to save some batt life.
Click to expand...
Click to collapse
How did you disable N support on the Desire?

lollylost100 said:
Phone *#*#4636#*#*. As to higher WiFi N speeds. We won't get higher speeds that 65-72Mbps because WiFi N mostly operates on the 5GHz band.
Click to expand...
Click to collapse
what a brainfuck 802.11 works with up to 600mbps at 2.4 ghz like on 5 ghz
. i wrote exams about wifi.
i bet the desire uses 1 antenna so it can get a max of 150mbps symbol rate.
but i think it uses a channel bandwidth of 20 mhz instead of 40 mhz so it is limited to the half of 150!!!

Well im currently connected at 72 using LeeDroid

lollylost100 said:
Phone *#*#4636#*#*. As to higher WiFi N speeds. We won't get higher speeds that 65-72Mbps because WiFi N mostly operates on the 5GHz band.
Click to expand...
Click to collapse
ye this just shows your connected speed..
to get the actual speed you need to transfer a file between computers locally.
those 2 speeds vary alot since it depends on noise and interferrence and loss.
bongmaster2 said:
what a brainfuck 802.11 works with up to 600mbps at 2.4 ghz like on 5 ghz
. i wrote exams about wifi.
i bet the desire uses 1 antenna so it can get a max of 150mbps symbol rate.
but i think it uses a channel bandwidth of 20 mhz instead of 40 mhz so it is limited to the half of 150!!!
Click to expand...
Click to collapse
Souns like that could be the reason..

Murd0ck said:
ye this just shows your connected speed..
to get the actual speed you need to transfer a file between computers locally.
those 2 speeds vary alot since it depends on noise and interferrence and loss.
Souns like that could be the reason..
Click to expand...
Click to collapse
the max payload data rate is 40 % of the symbol data rate

bongmaster2 said:
what a brainfuck 802.11 works with up to 600mbps at 2.4 ghz like on 5 ghz
. i wrote exams about wifi.
i bet the desire uses 1 antenna so it can get a max of 150mbps symbol rate.
but i think it uses a channel bandwidth of 20 mhz instead of 40 mhz so it is limited to the half of 150!!!
Click to expand...
Click to collapse
OK, that explains it. So we have a physical limit here for the throughput.
How about the better signal strength for N? This may be the result of the coding scheme. And more importantly, does the stock Froyo already provide 802.11n, so we could get rid of all the firmware and module hacks?

Bongmaster is right, you have different speeds for wireless N devices.
The desire is 1T1R (1 transmitter 1 receiver), and therefore can only only get 150mbps as a max theoretical speed. 2T2R is required for 300mbps operation.
However as mentioned, this only works with 40mhz channel bandwidth, 20mhz will cut it in half again.
Can someone force 40mhz channel bandwidth on their router and post results? Most Wireless N routers seem to come with 20mhz as the default setting.

Let me bump this again, there is one important question that was not answered yet:
Does the stock Froyo release (OTA) support Wifi 802.11n or not? I can not test it as I don't have access to a N router.
Thanks!

Everything I have read says yes.
Sent from my HTC Desire using XDA App

mmaacc said:
Let me bump this again, there is one important question that was not answered yet:
Does the stock Froyo release (OTA) support Wifi 802.11n or not? I can not test it as I don't have access to a N router.
Thanks!
Click to expand...
Click to collapse
+1 need to know also.
BUMP.

eXDee said:
Bongmaster is right, you have different speeds for wireless N devices.
The desire is 1T1R (1 transmitter 1 receiver), and therefore can only only get 150mbps as a max theoretical speed. 2T2R is required for 300mbps operation.
However as mentioned, this only works with 40mhz channel bandwidth, 20mhz will cut it in half again.
Can someone force 40mhz channel bandwidth on their router and post results? Most Wireless N routers seem to come with 20mhz as the default setting.
Click to expand...
Click to collapse
I did this and it made no difference, 72Mbps was the maximum it showed.
To be honest, I'm not sure the Desire is even capable of handling anywhere near this speed anyway. When connected to my home wireless at this speed, the actually download speed I get via speedtest.net is somewhere around 15-20Mbps and I have a 50Mbit connection.

Don't know what's up with all yours but mine is running at 425.9 MBPS.. IT is lightening fast, much faster than my 128mbps stick.
the actually download speed I get via speedtest.net is somewhere around 15-20Mbps and I have a 50Mbit connection.
Click to expand...
Click to collapse
That's all your getting from your ISP then when you tested, try it again at 2am or something when there's less people in your area sharing your bandwidth.

Note2 and TP-Link TL-WDR4300

hi guys!
i have a dual band wireless router TP Link TL-WDR4300 and according to the specifications the speeds should be up to 300Mps on 2.4Ghz band and up to 450Mps on 5Ghz band.
note2 is also dual band but i can get maximum 72Mps on 2.4Ghz band and maximum 150Mps on 5Ghz band even if i keep my phone at 1m from the router.
more then that the speed is rapidly decreasing to very low values and i can get better values only if i stop wifi and the restart it. in the wifi menu i switched "power save" option to off but i can't see any changes.
i also have an "android pc" imito mx2 and with this i get up to 135Mps on 2.4Ghz band.
so, my questions are:
1. why my note2 can't achieve maximum speed values and what can i do to get closer to those maximum values?
2. why the speed decrease shortly after initial connection and what ca i do to keep my connection at higher speed all the time?
i think that speed fluctuations can be a router issue (if someone can advise with router i'll be glad), but high speed limitation and fast decreasing in speed seems to be note2 issues.
any suggestion is welcomed!
thank you very much!

nobody? even with different router?

common guys!
there are so many smart people here, not even one with this problem or with an ideea how to solve it?
thank you!

Hi
Theres no answers as this is common issue and there are lots of threads about it.
In short: Your speeds are very good almost maximum You can get. Dont belief in marketing mumbo-jumbo 450mbit/s. Nobody see such speeds in real life. ln reality, You can safety bet 10 to 15 MB/sec is max You can get from Wifi.
There are special hardware configurations where lts possible to reach higher speeds but not in this case.
As general 2.4 ghz gives you wider coverage area but lower max speeds. 5ghz gives you smaller coverage but higher speeds. You need to check carefully which standard gives you better connection speed and stability in your particular case.
Wysyłane z mojego GT-N7100 za pomocą Tapatalk 2

Is your WDR4300 with stock firmware? I would suggest to try DD_WRT (or Gargoyle) which gave mine a boost for everything. Need to follow the instruction carefully though when flashing the third party firmware, if you haven't done it before.

can you please give me the link with the last dd-wrt firmware and with the instructions?
thank you!

its normal thats how BCM 4334 works
http://www.broadcom.com/products/Wireless-LAN/802.11-Wireless-LAN-Solutions/BCM4334

ok, thank you for the info!
now i have:
- note2 - 72 or 150Mbps
- nexus7 - 65Mbps
- iMito MX2 - 135 Mbps
- toshiba notebook - 54Mbps
- ipad2 - i don't know but it has the most stable link
- iphone5 - same as ipad2
is that confusing or what?

^^
Note 2 support a/b/g/n max link @2.4Ghz at 72Mbps , max link @5Ghz with 40 Mhz ( channel bounding ) 150Mbps
N7 only support b/g/n 2.4Ghz @65Mbps
iMito MX2 : IDK
ur notebook @54 mean its only b/g wireless which max link can be 54Mbps
ipad 2 support 2.4Ghz and 5Ghz max link at 65Mbps
iPhone 5 use the same chip as Note2 broadcom 4334

It is all about channel width... 20mhz 40mhz or vth80 (40+40 mhz) capable of speeds up to 150, 300, and 450 mbp . Depending on client... 1x1, 2x2 or 3x3... (Hell they are about to release a 4x4 capable router even though the clients don't exist yet)
Good read...
http://www.dd-wrt.com/wiki/index.php/Atheros/ath_wireless_settings
See cannel width section
The Galaxy Note II is equipped with Broadcom BCM4334 chipset for the IEEE 802.11 a/b/g/n Wi-Fi connectivity in 2.4 GHz and 5 GHz dual-band with maximum rate up to 150 Mbit/s
That makes the GN2 only a 1x1 capable client folks [the OP was connecting at max speed]
Further WiFi security settings can also cripple speed. WEP is not secure and slowest... WPA is better.... WPA security algorithm also come into play...
To reach top end of speed limits (on your 1x1 client, or any other) router should be set to:
security mode: WPA2
WPA alogrithm: AES (not TKIP or TKIP+AES)
To the folks that said you can't achieve top speeds.... Go read up on how to configure your router
(And learn what top speed limitations are given your router hardware, and hardware in each of your client devices)
Edit:
PS. you did not specify the hardware revision of your TP-Link TL-WDR4300
check for it on https://wikidevi.com/wiki/Main_Page
assuming a v1 for the sake of example:
Model WDR4300
H.W. rev 1.x
FCC ID TE7WDR4300
Platform & Frequency [MHz] Atheros [email protected]
RAM [MB] 128
Flash [MB] 8
Wireless NIC SOC + Atheros AR9580
WLAN standard [802.11] b/g/n 2x2:2, a/n 3x3:3 (respectively based on NIC above)
Serial port 1
JTAG port 1
Eth. port count 4 LAN, 1 WAN
Power Input [V/A] 12V 1.5A
Special Features Notes 2 USB 2.0, Gbit switch

SM-T700 Theoretical WiFi speeed (2.4G/5G)

Hello,
Does anyone know the theoretical WiFi speed of the SM-T700 in 2.5G and 5G band? Or can someone share his?
Using OOKLA Speedtast, I'm having approx 8-10Mbps under 5Ghz band with mine (similar perf w/ file transfer from a computer on local computer) but I get 40-50Mbps with other connected devices (eg S7E).
I'm not sure if this is due to device capability or ROM issue, so I'd like to know what is to be expected first.
Thanks for your input.

The 802.11AC, which works in the 5GHz bands, gives roughly 100Mbps per stream for a 20MHz wide channel. The Tab S supports two steams and up to 80MHz wide channels, so in theory with the right access point setup, you have theoretical speed of 800-900Mbps. However, in real life wi-fi wastes at least half of its bandwidth on it's own protocols house keeping. So the Tab S should be able to have 200-400Mbps ish link to the router under the optimal conditions. However, the 5GHz band slows down tremendously with the distance or behind the walls. If you're not getting 50Mbps in the speed test, then you're probably far away from the wireless access point, or there is some kind of interference going on. The 2.4GHz band is slower and usually more congested, but it reaches greater distances.

Thanks for the details @Akopps.
From what I observed, the max download speed on my Tab S is averaging 7MBps whereas using my laptop I get at least 20MBps. Same distance from router, located <4m and 2.5m up without obstructions.
So its seems I'm way below theoretical capable speeds but unsure why.

Effective wifi speed

Hello,
as you know Z2 Play support 802.11n protocol and not ac.
I'm wondering what is the maximum speed it can reach, using a 5 Ghz band.
Has anyone done a test or something near with a fast connection like Gigabit Fiber Internet?

Ok guys, I've done some test and those are the results: I've tested today the effective wifi speed at 5 Ghz, and the maximum that our Moto z2 can reach is 110 mbps.
Which is lower than the maximum of the n standard (150 mbps).
WiFi speed of the network is around 240 mbps, tested with a smartphone wifi ac support.
Hope this could help.

i'd tell you if i could connect to a 5ghz router....just bought one of these and wifi is sketchy (drops and won't even connect to 5ghz).
any thoughts?

I have the gig internet at home from EPB here in Chattanooga, TN. Most of my devices will run between 240-350 Mbps on 5g wifi. My Moto z2 Play will run around 110 Mbps on a great day. The best it's ever had is 114 and that was only 1 time. My 4k Firesticks average 250, even on our patio. The signal on the Moto z2 Play is definitely weak.

A70 wifi network speed

Is this max network speed for a70?
This is screenshoot form wifi settings.
On other phones i get 130mbps.

mine says 65. Ultra slow downloads. Heard some people talkin about using the 5 Ghz band of certain equipped routers or n band. It is just so slow downloading from my wlan I figured it must have something greater wrong with it. Like hackers again...who knows.

This is what mine says

On mine is 72mbps network speed and cant get over 49mbps download speeed on speedtest.net

433Mpbs on 802.11AC for me

I get a picture 130 mbps on my oreo device but both pie devices say 65 mBps.
My 1000/100/10 switch connects ethernet to various devices which easily shuttle the expected 80-130 actual MB/s around of large filetypes.
I don't have any sort of 5 Ghz router just the crappy device that the company sent out. And on that the MAC filter keeps getting disabled which increases my paranoia. Till 2 weeks ago I used the same crappy standard gateway/router for 6 years and frankly it was equal or better experience. At least that one started up reasonably fast. And its MAC filter was always on. But that could just indicate that the neighborhood brats had an easy backdoor to that one and didn't have to brute force off the MAC filter.
In my opinion the MAC filter getting disabled (now a few different times it has happened) indicatives a much much larger problem
I have been intending to get my own personal router for a while but there are too many options so I haven't had the scope to choose one yet.
Other phone in network displays 117mbps and is a Pie.

On same network 2.4ghz on s8,s7 i get 130mbps and on a70 72mbps max.
Just tried 5ghz on same network and got 150mbps it is a little faster.
But on 2.4ghz 72mbps is max.

hi guys
i have also same problem . cannot connect more than 72mbps , with 5ghz 150mbps max . something wrong but i could not find what is the problem .
you guys found any solution ?

mine has 72mb on 2.4 and 433mb on 5g...

Tactman said:
mine has 72mb on 2.4 and 433mb on 5g...
Click to expand...
Click to collapse
i think all a70 phones are like that

I just tested and got 158Mbs with a 5Ghz wifi connection, although only around 60Mps on 2.4Ghz.
Andre

I'll check mine later and see if I can figure out what's happening

Right next to the router I can see 96mbps in 2.4Ghz

Must be something wrong. I got 433mbps.

Nothing is wrong.
The Snapdragon 675 supports 2x2 chains on WiFi, but the A70 only has a 1x1 antenna so it connects at half the speed.
Link speeds on the A70 are as follows:
2.4 GHz = 72 Mbps
2.4 GHz (with 256 QAM) = 96 Mbps
5 GHz = 433 Mbps
On all devices with 2x2 on WiFi, the speeds above will be doubled on those.
These are in ideal network conditions with great signal strength and low interference. These numbers could reduce if you are far from the router.
This is not abnormal. A lot of mid-range devices only have 1x1 for WiFi.