Wifi Lan Maximum Speed? - Galaxy S III Q&A, Help & Troubleshooting

Hi guys,
I've got a Netgear wifi n router and a Netgear usb wifi n connected to my pc, and I'm using my gs3 as an ftp server to transfer files to and from my pc.
The problem is that I can get a max upload speed to and from my pc of 2.7mb a second. I should be getting better results as the router and wifi a stated as 300mb connection.
Anyone can give me some information regarding?
Thanks
Inviato dal mio GT-I9300

Same here, Im getting speeds of 2mbps and less with phone, while my laptop connected to same AP is giving 8 to 9mbps.
I even tryed disabling power saver mode but still no luck.
And both laptop and mobile were tested with same signal strength.

WiFi is kernel so you have the option of trying different kernels .
jje

The speed I get when using a web based speedtester using my 60mb internet connection are:
2.4ghz:
connect at 65mb with router set to 300mb around 30mb transfer rate
connect at 72mb with router set to 145mb around 30mb transfer rate
5ghz:
connect at 150mb with router set to 300mb or 145mb around 62mb transffer rate
Not tried much else but if I were to run a local transfer I should see at least what I get using 5ghz wifi via internet tester.
I dont think your problem is hardware related. It could be a few things. So you would need to troubleshoot. Some ideas:
Ftp daemon using a lot of overhead can cause slowness, try a different daemon
Filesystem write and read speed, run some benchmarks to see
Kernel problem or sysctl variables, tcp send or recieve buffer for example. Sysctl -a in a terminal on your phone and see.
The key thing here though is that if I were to connect at 2.4ghz I would see around 3mb per second transfer rates.
Hope that helps.
Sent from my GT-I9300 using xda premium

ficti0n851 said:
The speed I get when using a web based speedtester using my 60mb internet connection are:
2.4ghz:
connect at 65mb with router set to 300mb around 30mb transfer rate
connect at 72mb with router set to 145mb around 30mb transfer rate
5ghz:
connect at 150mb with router set to 300mb or 145mb around 62mb transffer rate
Not tried much else but if I were to run a local transfer I should see at least what I get using 5ghz wifi via internet tester.
I dont think your problem is hardware related. It could be a few things. So you would need to troubleshoot. Some ideas:
Ftp daemon using a lot of overhead can cause slowness, try a different daemon
Filesystem write and read speed, run some benchmarks to see
Kernel problem or sysctl variables, tcp send or recieve buffer for example. Sysctl -a in a terminal on your phone and see.
The key thing here though is that if I were to connect at 2.4ghz I would see around 3mb per second transfer rates.
Hope that helps.
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
I have a 150mbps 2.4ghz N router, giving me 2mbps speeds using ES file explorer, when its connected at 65mbps,
But i dont understand is why is it connecting at 65mbps in the first place,
and even after connecting at 65mbps giving such low transfer speeds,where as it should be giving 5-6mbps ideally or at-least a 4.
I have tryed it on Siyah and Perseus kernels with no/less difference in results,
Im trying to copy files on Internal SDcard which has transfer speeds of Read 53.4MBps and Write 22.16MBps
Will try different Ftp apps and see whether it makes any difference.

Related

Extremely slow wifi speeds

SOLVED! See end of post
Galaxy Tab 32Gb Wifi.
I'm suffering from extremely slow wifi transfer speeds.
In ES FileExplorer, when copying a file from LAN, transfers are below 0,5 Mb/minute. Running http://www.speedtest.net will show download speeds of around 20kb/s....
I experienced this on the stock ROM with the root update, and on the Bonsai ROM also. The only time i didn't recall having these issues is on stock ROM unrooted.
Any ideas?
ps. My Wifi access point is a TP-LINK n-router with dd-wrt. Connection show a TX rate to the Tab of around 60Mbs and a receive rate of N/A (meaning, to slow to show?)
Encryption is WPA2/EAS, long pressing the Wifi entry on the tab shows a linkspeed of 5Mbps. It shows 65Mbps right after connecting but then drops, meaning the android os just isnt asking for more speed it seems
update: downloading a 5Mb file from XDA took around 30 seconds, thats more like it. The slowness seems restricted to LAN SMB shares.
update2: solved! It turned out my router with DDWRT firmware ran out of JFFS2 memory. This is a dedicatedportion of the routers flas memory to store custom programs or small webservers etc.I have no idea why it was enabled, all i know is the minute i disabled it, LAN transfer speeds increased tremendously. Now i know also why i had to reboot my router every now and then becauseof connection problems....
Hahaha. Something similar happened to me. It was also the router.
Man thanks a ton for posting the solution! I googled to this thread and restarting the modem solved my problem too. I've come across so many idiots who just posts "I found the solution/Problem solved" and that just pisses me off!
Thanks once again!
Edit: Sry for bumping this but i had to post!
Hi,
I have the same issue with my Netgear DGN2200v3, and I've seen it uses JFFS2 as well.
I'm not sure to install a custom firmware to solve the problem but I've also read something about changing the way the file system is mounted (i.e. rw instead of r).
Do you think the only solution would be to get rid of this fu...ng JFFS2?

[Q] How to test wifi speed

Hey guys,
sorry if this is a stupid question or its been asked before, but how can I test the wifi connection speed on my Prime? There must be a way to do it as all of the reviews have results..
Thanks for any info.
Search market for speed test speedtest.net have a nice app for that
Sent from my Transformer Prime TF201 using XDA Premium App
thanks for the reply but i've tried that, it just tests my internet connection speed. I want to test my local wifi network speed
That is what a wifi test is doing is checking your internet speed.
Now if you want to check your signal strength, then look in the market for apps called wifi analyzer.
Speedtest is serverside so the max speed is going to be dependant on my internet connection.. all i'm interested in is my local speed.
Thanks for the replies.
I don't think there is an android app out, but you could go the other way around.
You could download a lan speed test for your PC and then connect to the IP address of your tablet/connected device and test the speed?
Maybe that will work for you?
Dnakaman said:
I don't think there is an android app out, but you could go the other way around.
You could download a lan speed test for your PC and then connect to the IP address of your tablet/connected device and test the speed?
Maybe that will work for you?
Click to expand...
Click to collapse
Ah now that's thinking outside the box!
Cheers, i'll give it a go.
You need to have some sort of server and an app to download files from that server.
I tested download speed from my nasserver to my Galaxy S2 to compare Wifi G vs Wifi N.
Went from 2.26MB/s on G to 3.66 MB/s on N wifi.
"Filesize / seconds"
My laptop is 10mb/s on same N wifi netowrk.. could be faster but is only 100mbit lan netowork..
Transferring a (large) file from a server to your tablet would measure not only local WiFi speed, but Prime's internal capability of processing and storing data. I just did a quick test downloading a file from my work's Samba server and got speeds of about 0.6 and 2.5 kbytes/s for the Prime and my laptop, respectively. This is in line with kunddizzle, who got laptop speeds about four times faster that from the Prime.
This is interesting. Clearly, WiFi speed is not everything. Prime doesn't seem to be dealing very well with incoming data. Don't know whether it is due to its WiFi receiver, processor, memory, storage or something else. But, at least in two cases reported here, it is slower than a laptop on the same network.
UnitedWeFall said:
thanks for the reply but i've tried that, it just tests my internet connection speed. I want to test my local wifi network speed
Click to expand...
Click to collapse
Hi,
I known it's an old thread, but I had the same problem and was not able not find any local wifi speed test application after read a tons of forum. So I've just written an android application that can do that test. Maybe it will be useful for you too.
Just find "wifi speed test" (pzolee) on Google Play.
I am not a big expert in android programming but I tried to do my best

[Q] Very slow copy speeds from Samba share on LAN.

Hi All.
I have a very weird problem with my Prime.
If I check my internet speed with Speetest I get the full 30 Mbits I get from my ISP.
However If I start to download a file form my NAS (WD Mybook Live) to the prime with any app that supports samba shares I'm lucky if the transfer speed hits 3-4 Mbits!! (is was 450kb/s tops)
Coping the same file to my PC from the NAS goes with ~25Mb/s
Did anybody else encounter this issue?
Oddly, I have this problem on my Galaxy Nexus and most other devices I've owned. I'd used to be able to get 1MB/s (8mbits) which is still slow
Perhaps it's something to do with our router & server settings

Use ONLY Iperf to test Wifi !!!

Just a reminder to get it on top of the list again
It is becoming rather difficult to compare all the different statements about Wifi performance and the speed results determined with Speedtest.Net
Don't use the bars at the bottom of the screen.
These are just a graphical image representing that something is going on with Wifi. If the parameters in the firmware are changed you can get as much bars as you want.
Furthermore the bars don't say anything about the quality of the Wifi connection.
Don't use Speedtest.Net
Speedtest.Net doesn't measure Wifi speed but the speed of the connection you are having with a remote Speedtest.Net server on the internet. The speed it indicates is the speed of the weakest link in the routing. So congestion on the internet (not your Wifi) is represented in a slower speed.
When your family or housemates are streaming Youtube the speed it indicates is the speed for the remainder of the bandwith that is left over for you.
Use only Iperf!!! (it's free)
With Iperf you set up a server and a client in your home network . By executing Iperf with different parameters you can get a lot of different info about your Wifi like bandwith, lost packets, jitter, sent and recieved data, etcetera.
For the noob it seems complicated but it isn't. There is a good tutorial on http://openmaniak.com/iperf.php
Please do me, the community and yourself a favor.
Use Iperf.
That way we can get data we can compare.
And maybe someday it will get us somewhere
Thank you very much in advance
PS: Don't just do one test. Do multiple tests. This is something you can automate with Iperf. Set it to do 20 (or more) tests and get some coffee.
using -c<ip> -d I get the following in the same room of my 300mbps wireless n router:
Client connecting to 192.168.1.100, TCP port 5001
TCP window size: 8.00 KByte (default)
------------------------------------------------------------
[256] local 192.168.1.102 port 49792 connected with 192.168.1.100 port 5001
[ ID] Interval Transfer Bandwidth
[256] 0.0-10.0 sec 8.52 MBytes 7.13 Mbits/sec
[280] 0.0-10.1 sec 36.1 MBytes 30.1 Mbits/sec
[288] local 192.168.1.102 port 5001 connected with 192.168.1.100 port 58706
i'm going to assume that this is bad...
Edit: Another test doing -t 25 -i 1:
I get an average transfer of about 4.4 MBytes and Bandwidth of an average of about 38MBits/sec
dingdonggggg said:
Just a reminder to get it on top of the list again
It is becoming rather difficult to compare all the different statements about Wifi performance and the speed results determined with Speedtest.Net
Don't use the bars at the bottom of the screen.
These are just a graphical image representing that something is going on with Wifi. If the parameters in the firmware are changed you can get as much bars as you want.
Furthermore the bars don't say anything about the quality of the Wifi connection.
Don't use Speedtest.Net
Speedtest.Net doesn't measure Wifi speed but the speed of the connection you are having with a remote Speedtest.Net server on the internet. The speed it indicates is the speed of the weakest link in the routing. So congestion on the internet (not your Wifi) is represented in a slower speed.
When your family or housemates are streaming Youtube the speed it indicates is the speed for the remainder of the bandwith that is left over for you.
Use only Iperf!!! (it's free)
With Iperf you set up a server and a client in your home network . By executing Iperf with different parameters you can get a lot of different info about your Wifi like bandwith, lost packets, jitter, sent and recieved data, etcetera.
For the noob it seems complicated but it isn't. There is a good tutorial on http://openmaniak.com/iperf.php
Please do me, the community and yourself a favor.
Use Iperf.
That way we can get data we can compare.
And maybe someday it will get us somewhere
Thank you very much in advance
PS: Don't just do one test. Do multiple tests. This is something you can automate with Iperf. Set it to do 20 (or more) tests and get some coffee.
Click to expand...
Click to collapse
Just a reminder to get the thread a liitle bit higher on the list again.
Lot's of people asking the same question

Server Help

On my DNA when I run speed test it goes to a server automatically and I get maybe 12 mb speed. If I go into settings of speed test and select the server which is actually closest to me, my speeds are 40mb+. So my question is which one is my phone using and can I make my phone use the closer one?
Sent from my HTC DROID DNA
The servers listed in the speedtest.net app (I'm assuming this is the one you're using) have absolutely nothing to do with how fast your internet will be. No matter which server you choose, your actual internet speed will be just as fast. When you run a speed test, your phone uploads then downloads a test file to and from the remote server. This allows the app to measure how fast your internet is. When you aren't running a speed test, your phone isn't connected to the server any more, and the server has no effect on your internet. Some servers will tell you that your internet is faster than others because some of the servers don't have as high a capacity as others, and your connection may be too fast for them to measure. What does affect the speed is how good your home internet is. or how strong of a 4G signal you have.

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