Develop Bugs

"N" -vs- "G" wifi on Vibrant/Galaxy

I noticed when I was at a friend's place recently that the Vibrant supports N wifi networks as well as G. However, I did not have the opportunity to do any extended testing.
I have noticed that wifi transfers over the network using various file sharing tools tend to be slow, and buffering with Allshare can be slow at times. What I'm wondering is, has anybody compared actual speed of Wifi on the Vibrant or Galaxy when using an N network versus G? Is the speed of the phone itself more the limiting factor, or would I get much better speeds using an N network?
Reason is, I'm currently using a Buffalo WHR-54GS router. It is a bit old, but using DD-WRT firmware, it has been rock solid. It does not, however, support N networking. I'm wondering if I would see any improvement in speeds transferring files and buffering DLNA connections by upgrading to a Buffalo WHR-HP-GN which supports N networking.
The only reason I'd upgrade would be for the N based Wifi - so if there's no benefit on my phone, then I wouldn't need to upgrade. Any input?

I have not had a chance to do any benchmarking but I have done allshare over both a G and N network and it did seem noticibly faster over the N network. Especially when paired with a gigabit hard wire to whaterver your streaming to/from.
Actually I think the gigabit helped as much as the wireless N, of course those routers tend to be more expensive...

I got a linksys wrt160n with ddwrt. the n doesnt work great with ddwrt but the router is great. i also have another n wireless but i dont notice much diference at all. maybe internal network stuff but not internet stuff.

Can't say I've done side-by-side comparisons, but it does seem to get some boost from the N speeds. For a new router, I'd suggest the ASUS RT-N16. Just about the most powerful consumer router out there (RAM & CPU) and it runs Tomato (plus dd-wrt)

N is better for streaming.
The N network allows a faster streaming and file transfer over the wifi. Now this will not improve your internet speed. The limit on the router might be higher, the modem will still have its limits. If you use allshare alot, I'll recommend you get a N router, otherwise no reason to purchase something you won't use. I have a Netgear dualband router (WNDR 3300). It supports both N and G networks but I rarely use the N since most of my devices do not support N. The ones I have that do like the Vibrant supports at 2.4ghz frequency. The router can be switched to broadcast the N at 2.4ghz, but like I said, If you're not streaming, there's really no need for it. To put this in numbers, the G networks can only transfer data at the maximum of 50mbps while the N can transfer files at Maximum of ~400mbps (if not higher). If your internet service does not offer more than 50mbps speed, then your internet will remain the same whether on G or N. You have been schooled

Helpful, informative post. Up until the last sentence.

Unless you only set your router to n you wont get the full advantage of using n you will only get compatibility. Having g on slows down you n network to a like speed. At least that what happens on my router, I have a dlink, when I did a little Googling it confirmed it.
Sent from my SGH-T959 using XDA App

Only Loki said:
Unless you only set your router to n you wont get the full advantage of using n you will only get compatibility. Having g on slows down you n network to a like speed. At least that what happens on my router, I have a dlink, when I did a little Googling it confirmed it.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
May be specific to your Dlink. My Asus does G & N, and the N devices ran significantly faster than the G laptop that I still had connected until recently. The G laptop never slowed anything else down.

tide1988 said:
You have been schooled
Click to expand...
Click to collapse
tide1988 said:
To put this in numbers, the G networks can only transfer data at the maximum of 50mbps while the N can transfer files at Maximum of ~400mbps (if not higher).
Click to expand...
Click to collapse
If you are going to try to school people, please do it right and quit misleading people.
The Vibrant is not MIMO capable, so we only get a theoretical 150Mbps on 802.11N. Due to security and WiFi error correction, realistic throughput is ~70Mb/s. That is 8.75MB/s, slightly faster than an AData 16G class 6 card, but significantly slower than a SanDisk 8G Class 6 card.
On 802.11G, again due to WiFi error correction and security, a realistic throughput number is around 20Mb/s. That is 2.5MB/s, barely faster than a crappy Class 2 SD card.
Keep in mind that these are all "optimal" numbers. The amount of time that your vibrant will ever see these (more realistic) maximum numbers are probably less than 10% of the time.

Saiboogu said:
May be specific to your Dlink. My Asus does G & N, and the N devices ran significantly faster than the G laptop that I still had connected until recently. The G laptop never slowed anything else down.
Click to expand...
Click to collapse
Try a file transfer on N with the compatibility mode off (N Only) versus in B/G/N mode. You should see a speed increase on N only. However, with everything RF, you might have interfering neighbors that will influence testing.

Some of the wireless routers will slow down. it has to do with the router only having one band. In a dual simultaneous router, one band can be slowed to G speeds, such as my PS3 or my dad's 2nd gen iPod touch. My vibrant, however is automatically positioned on a completely seperate stream from the G devices.

i have a Cisco E3000
and i do see a small difference
about a minute difference in downloading a 600mb file

[Q] Nexus 7 (2013) wifi speeds / which router do you have

Hi everyone,
I have my Nexus 7 connected to a Linksys WRT160N router with tomatoRAF firmware installed. This router+firmware+configuration setup was the best I could do without constant dropping of connection or not connecting at all, but still at very slow speed of 0,5 - 1,5 MB/s (average is more around 0,6) when copying files on local network (SMB) with ES File Explorer. Which is good enough for web surfing and emails, but not enough for IPTV and youtube (youtube works, but i have to wait for it a lot).
So far i have tried numerous configurations of my router, nothing works. I tried other routers, 9 to be exact, but i have never seen more than 2MB/s.
Now i'm thinking about buying new router, and I want to know what wifi speeds do you get with which router.
thanks

Hi,
what's your net speed? mine is 26 mbit/s and this is what i get. however, IF you stream sound with BT/have any BT service up and running and your wifi runs at 2.4ghz it is highly probable the two (bt and wifi) interfere. This was the problem i had and which i found out after buying soundbar which links with its subwoofer via BT(BT butchered my wifi, i was scoring 1mbit to up to 26). I have switched to dual band modem/router (tp link td-w8980). now, i have two WiFi networks at my place, one which runs at 2.4ghz and the second at 5ghz. the 5ghz is used only by my nexus :]

N7 2013, Buffalo N300 router, Verizon FiOS 75/25. The router is dual channel, but not dual band: 2.4GHz only.
Sent from my Nexus 7 using XDA Premium 4 mobile app

enlev said:
Hi everyone,
I have my Nexus 7 connected to a Linksys WRT160N router with tomatoRAF firmware installed. This router+firmware+configuration setup was the best I could do without constant dropping of connection or not connecting at all, but still at very slow speed of 0,5 - 1,5 MB/s (average is more around 0,6) when copying files on local network (SMB) with ES File Explorer. Which is good enough for web surfing and emails, but not enough for IPTV and youtube (youtube works, but i have to wait for it a lot).
So far i have tried numerous configurations of my router, nothing works. I tried other routers, 9 to be exact, but i have never seen more than 2MB/s.
Now i'm thinking about buying new router, and I want to know what wifi speeds do you get with which router.
thanks
Click to expand...
Click to collapse
I had throughput issues with a Linksys WRT54GL and Tomato, was not a configuration problem. Loved the way Tomato worked, how it looked, it's options... but in the end, all I really cared about was throughput. Are you able to replicate the throughput issue on stock router firmware? You said you tried other routers. All the same model (RMA)?
Tell me more about your connectivity issues.
If you've used different routers from different manufacturers (with their respective stock firmware), then it's probably a problem with your tablet.

Aerowinder said:
I had throughput issues with a Linksys WRT54GL and Tomato, was not a configuration problem. Loved the way Tomato worked, how it looked, it's options... but in the end, all I really cared about was throughput. Are you able to replicate the throughput issue on stock router firmware? You said you tried other routers. All the same model (RMA)?
Tell me more about your connectivity issues.
If you've used different routers from different manufacturers (with their respective stock firmware), then it's probably a problem with your tablet.
Click to expand...
Click to collapse
I had this throughput issue from the day I received my nexus 7 (2013), with stock firmware on router. But with stock firmware, the connection would drop randomly (from 5 minutes to 12 hours) and to reconnect i had to restart the router and nexus - this was corrected only with this firmware TomatoRAF (i tried dd-wrt and 2 more tomato firmwares - all kept disconnecting). I never had this throughput issue with any laptop, only this nexus.
The other routers i tried were all different routers, but all at least 3 years old.
Another information: friends nexus 7 (2013) WIFI, flo, also had same speeds on my router.
today i will try to test a few phones and a laptop on my router and will post results as soon as i can

32gb lte model, I use an Asus ac66u and Comcast 105\25 Mbps. 5ghz WiFi gets me 90 Mbps down and 22-30 up, 55 Mbps down and 22-30 up on 2.4 GHz.
Sent from my Nexus 7 using XDA Premium HD app

This is what i get (copying files from server with es file explorer):
nexus 7 2013 (kitkat) - 760kB/s
1st xperia ray (kitkat) - 750kB/s
2nd xperia ray (jellybean) - 530kB/s
xperia mini pro (jellybean) - 560kB/s
galaxy s4 mini - 1070kB/s
laptop - 6500kB/s
I used to get 10MB/s+ on my laptop with original linksys firmware, but now i configured router to be more "reliable" and i would be more than happy if nexus had 6,5MB/s connection.
I attached some info about router configuration. If there is an "expert" reading this willing to help, i can post more complete configuration.

DeathmonkeyGTX said:
32gb lte model, I use an Asus ac66u and Comcast 105\25 Mbps. 5ghz WiFi gets me 90 Mbps down and 22-30 up, 55 Mbps down and 22-30 up on 2.4 GHz.
Sent from my Nexus 7 using XDA Premium HD app
Click to expand...
Click to collapse
Are you happy with ac66u? any problems? what about lan to wifi speeds (with laptop/ac adapter)? i am asking as it is a serious contender for my next router

DeathmonkeyGTX said:
32gb lte model, I use an Asus ac66u and Comcast 105\25 Mbps. 5ghz WiFi gets me 90 Mbps down and 22-30 up, 55 Mbps down and 22-30 up on 2.4 GHz.
Sent from my Nexus 7 using XDA Premium HD app
Click to expand...
Click to collapse
I think I hate you! Ok... maybe I'm just a little jealous!
enlev said:
Are you happy with ac66u? any problems? what about lan to wifi speeds (with laptop/ac adapter)? i am asking as it is a serious contender for my next router
Click to expand...
Click to collapse
Considering how inexpensive it was I"m extremely happy with the TP-Link WR1043ND that I use. With aftermarket antennas I bought as an experiment and the current firmware installed signal strength through walls and general performance is great. I thought about installing third-party firmware on it when I first got it a couple years ago but see no need. For the package I have from Comcast they advertise I think 25 Mbps down and 5Mbps up and I usually see 28/6. If you haven't already done so make sure your router is using the best channel for your location. Also, I see a lot of people move off of channels 1, 6 and 11 which can make them see/cause more bleedover from/to adjacent channels. You can see that in my screenshot with networks MercedesBenz and Sandvik. I live in a house but the effect in an apartment or condo would be worse. I also use a repeater because my router is at the opposite end of the house from my backyard patio and this house has insulated steel siding. Wifi Analyzer is a free app and works great to figure out what channel would work best for you.
Also in the N7's wifi advanced settings I use "2.4 GHz only" which seems to make it reconnect faster when waking up the device because I also use "only when plugged in" during sleep.

enlev said:
Are you happy with ac66u? any problems? what about lan to wifi speeds (with laptop/ac adapter)? i am asking as it is a serious contender for my next router
Click to expand...
Click to collapse
I haven't had any problems. All my large lan transfers are done over Ethernet cat 6. If it can pull down 90mbps from wan to wlan on two phones and a tablet, well then there's your sign lol. All these speeds are on n WiFi, I haven't even tried ac because all my machines that need all available bandwidth are hardwired. The router hasn't even required rebooting unless one counts firmware updates and such. Hardline lan to lan is right about 100 MB/s.there's an even faster model out called the ac68u but it's significantly more expensive.
Sent from my Nexus 7 using XDA Premium HD app

I have the 32GB LTE version... Using an Asus RT-N66U as my access point...
On 2.4 ghz I get 22.5 mbps down and 7.5 mbps up*
On 5 gzh I get 68.4 mbps down and 11.5 mbps up... which is the max speeds I see from my ISP.
*note: there are about 18 strong 2.4 ghz networks visible at my location (surrounded by apartment buildings). 2.4 ghz performance consistently suffers with this level of interference across all of my connected devices.
As far as the RT-N66U goes... I'm very happy with it's performance and range of signal. I was a long time WRT54G user with tomato. This matches almost perfectly.

Does Galaxy Note 2 support 5G wifi?

I bought a dual signal wifi router recently and was surprised that my note 2 can connect with 5G,but it is not stable. My rom is DN3 4.4.2. Does anyone can help?
thanks

Alexsandra said:
I bought a dual signal wifi router recently and was surprised that my note 2 can connect with 5G,but it is not stable. My rom is DN3 4.4.2. Does anyone can help?
Click to expand...
Click to collapse
My router is dual band and I have not noticed any instability. I have not tried fixing the connection to 5GHz only though. (It's an AVM 7390)
I may try later.

only the n standard, not the newest ac standard (which is wifi in the 5 GHz frequencies) as far as i know (and the spec sheets i looked up)
Routers are usually downwards compatible, so thats why your note can connect I think

Mine connects to the 5Ghz spectrum just fine, though it's worth remembering the range is severely crippled compared with 2.4Ghz

WiFi signal issue is terrible,any fixes?

Hey guys.
Purchased it today,and just like every damn Samsung phone and tablet they still haven't fixed wifi strength signal with even such expensive phone.
So I was out of town and from like 7 wifi signals,only 2 were recognized.
And even when it connects the signal is so weak and it often drops.
Now I'm in my room now and like 3 feet away from router and I'm getting around 6.7 MBps speed instead of between 9-10 just like on my good old S7 edge.
I can't believe.
So is it my phone or others have the same issues?

I have never had a single issue regarding wifi signal strenght, I got my note 10+ since Sept 2019

So I came today in city park,sit on bench and turned ON WiFi on this phone.
Damn,it couldn't find nor any fi..ing single network over WiFi.
I rebooted it like 5 times and then it found one network and barely connected to it with very low signal,but in a matter of minutes it droped.
I had near me,Ulefone 5S which is 200 euros phone and it had better WiFi signal and found at least 5 networks,although with very weak signal,but Samsung couldn't find nor one WiFi network.
Because I purchased used phone ofc I can't return it or RMA it.
Am I the only one with this issue,and how do I resolve it?
But if I'm like in a caffee where is near router the signal is okay,but when I'm outdoors I have this issue,means far away from caffee routers.

Ok I did test outdoors compared with S7 edge.
Do you notice any difference,in terms that N10+ has some issues:

So there is one place in city,where there are lots ofi wifi networks but all of them have weak signal.
So I turned ON the phone and WiFi and it didn't find nor any single network,I turned off wifi on again nothing.
Here is the picture of that issue.
I also can not find what model of wifi card is in my phone,to check if it was replaced,so I'm suspicious about that.
Btw I don't have any wifi issues when I am on local coffee shops/bars nor at home.
Just at places where like wifi signal is weak and like there are many networks at that place.
So what is this issue about.

I just went to my balcony and simply this phone doesn't detect as many networks as some chinese phone,N10+ detected just 8 and chinese phone 13.
Then all of the sudden phone goes crazy in like 5-10 min and detects like 12 network.
And though signal strength is nearly the same between phones,I'm getting even 10 % lost in download when I do speed test and compare 2 phones.

so third video,compared to my tablet and s7 edge.
and I will post pics.
Correct me if I am wrong but on tablet and on the phone on the right yeah I see more network recognized but those have weak signal...
N10+ obviously doesn't list those networks for some reason (with weak/no signal).

so third video,compared to my tablet and s7 edge.
and I will post pics.
Correct me if I am wrong but on tablet and on the phone on the right yeah I see more network recognized but those have weak signal...
N10+ obviously doesn't list those networks for some reason (with weak/no signal).
and pics...

As you do clearly see on picture N10+ is screwed up recognizing only one wifi network,and my Ulefone Power 5S many...so what is happening I dunno.
Even S7 edge beats it.

I had the same experience on my black note 10+ (4G black model), it would drop the wifi quite often during video playback while my Mate 30 Pro would just continue on the same network. That improved after I reset the network settings and cleared the system cache. I had/have a far more stable connection after that. As for the speed, the Mate 30 Pro would always achieve higher speeds than the note 10 +, no matter how many times I did the tests on both devices. As for the amount of networks it shows, my current note 10+ ( a 4G model but a white one) does only display 1 network at home while the Mate 30 Pro shows 5 or 6 different networks but all of them with a very weak signal strength. Besides them all being password protected I doubt if the Huawei would be able to connect with any of these so whats the point of showing all these weak networks. Maybe that's the reason the note 10 does not show them? Maybe the are filtered?
Both the black and the white are showing similar behavior, I have them both side by side and both are showing the same (single) network being available.

No problem with wifi with my Note 10+ N975F/DS, Good and stable connections.
I do confirm that in the wifi settings only stronger networks are displayed. When using app like WiFi Analyser I can see that there are more networks detected on the Note 10+ than shown in the wifi settings.
I do observe that wifi speeds on Note 10+ are lower than those provided by my Note 8, comparing/measuring side by side on same wifi network.
But in daily use the Note 10+ has sufficient wifi stability and -speed for my normal use, (matching the speed of my Internet connection of 100Mb) including streaming of HD-Video. I do not play online videogames.

Yep for some reason my Note 10+ doesn't show networks with bad wifi signal,dunno if it's just my model or you experience the same.
But for phone such expensive this is unforgivable.

Look here guys,it does recognize wifi networks with wifi analyzer but doesn't filtrate them so I can connect to them,same happens with my S5e tablet.

That's what I already stated...
You can however connect to wifi-networks detected in WiFi Analyzer (WA) by installing a plug-in (just click on the network in WA, it will prompt you what to install..)

OnnoJ said:
That's what I already stated...
You can however connect to wifi-networks detected in WiFi Analyzer (WA) by installing a plug-in (just click on the network in WA, it will prompt you what to install..)
Click to expand...
Click to collapse
Nothing is happening when I click on network.

You need a new director for your videos.

Question Why is WiFi Speed limited on Redmi phones?

The phone is a Xiaomi Redmi Note 11, and its WiFi is somehow capped at about 48Mbps. Do note that there is nothing wrong with the WiFi networks I test with, they're all Fibre connections that go above 100Mbps with different 2.4GHz and 5GHz APs (most importantly, another flagship Xiaomi phone I have does get those speeds).
I can't figure out why it can't go above this speed, I've tried everything I could so now I would like to know if there are some apps or such that display diagnostic data which would make it easy to pinpoint what exactly is related to this speed limit. The phone should in no way also pose a hardware limitation, it's rated for AC WiFi networks and the Snapdragon 680 should be more than enough.
What's funny is I have a Redmi Note 8 as well, and it has the same exact issue. It also can't go above 48Mbps.
One thing I noticed after browsing through that phone's threads online is that it used to be a Bluetooth and 2.4GHz issue. So I tested this with my Redmi Note 11, and doing things like changing the GPS WiFi/Bluetooth scanning on while turning off Bluetooth thereafter and not doing all that gets the speeds from 36-41Mbps to the 48Mbps theoretical 'limit'.
It may very well be connected to sharing the wireless hardware in the phone with other features, and the OS is somehow limiting the WiFi speeds to get things done.
In any case, TL;DR what apps or resources can I use to diagnose WiFi speeds on Android (preferably MIUI), which would hopefully also include other wireless diagnostics information to probe the relevant causes as to why my Redmi phones don't go above 48Mbps?