Galaxy S4 will NOT do wireless N (802.11n) - Networking

Hello everybody,
I have searched all over the web and these forums trying to find an answer as to why my Galaxy S4 (SGH-M919)refuses to connect to my wifi network using wireless N (802.11n).
I thought something was wrong with my network at first, but I went into service mode on my S4 and clicked on wifi and it says this:
Link Speed: 5Mbps 802.11b
Now, when I'm in service mode looking at that, I click the option to turn off WIFI Power Save Mode. When I turn that off, it refreshes and connects to 802.11n at 54Mbps, but that only lasts for 2 seconds and then it reverts back to 802.11b at 5Mbps. GAH!!!!
My router is set to wireless N only, so I don't understand why my phone insists on using 802.11b instead of 802.11n. My router is an ASUS RT-AC68U and I am not a noob when it comes to networking and routers but I cannot figure this out no matter what I try.
My S4 works perfectly fine on 802.11ac (very fast) but that's only on the 5GHz spectrum and I want to use 2.4GHz for better range and other various reasons.
My router is awesome and very fast, and my S4 did the same thing with my old router. So it's definitely my phone. Any help would be GREATLY appreciated!!! Thanks in advance.
Sent from my Samsung Galaxy S 4 (SGH-M919) T-Mobile

PainTrane117 said:
Hello everybody,
I have searched all over the web and these forums trying to find an answer as to why my Galaxy S4 (SGH-M919)refuses to connect to my wifi network using wireless N (802.11n).
My router is set to wireless N only, so I don't understand why my phone insists on using 802.11b instead of 802.11n. My router is an ASUS RT-AC68U and I am not a noob when it comes to networking and routers but I cannot figure this out no matter what I try.
Click to expand...
Click to collapse
What makes you only have to use 802.11n?

PainTrane117 said:
Hello everybody,
...I thought something was wrong with my network at first, but I went into service mode on my S4 and clicked on wifi and it says this:
Link Speed: 5Mbps 802.11b
Now, when I'm in service mode looking at that, I click the option to turn off WIFI Power Save Mode. When I turn that off, it refreshes and connects to 802.11n at 54Mbps, but that only lasts for 2 seconds and then it reverts back to 802.11b at 5Mbps. GAH!!!!
My router is set to wireless N only, so I don't understand why my phone insists on using 802.11b instead of 802.11n. My router is an ASUS RT-AC68U and I am not a noob when it comes to networking and routers but I cannot figure this out no matter what I try.
My S4 works perfectly fine on 802.11ac (very fast) but that's only on the 5GHz spectrum and I want to use 2.4GHz for better range and other various reasons.
My router is awesome and very fast, and my S4 did the same thing with my old router. So it's definitely my phone. Any help would be GREATLY appreciated!!! Thanks in advance.
Sent from my Samsung Galaxy S 4 (SGH-M919) T-Mobile
Click to expand...
Click to collapse
Something is odd about what you are saying. If your router is set so only the N radio is active, what "B" wireless network is it attaching to? Not yours, surely.
You do realize that "N", although rated faster, does not have the range or general flexibility of good old "G" right?
And that's another question, why is your phone going to a "B" connection, and not a "G" one...

Related

X1 cant detect wireless N-Router--NEED HELP!

Hi guys, my X1 seems to have some problems connecting to my home wireless belkin router ( N-series). i can locate other networks in the area but fail to locate my N router which is just beside me! please help me! i recently upgraded from a G router to a N router, but it shud be compatible. any ideas?
dedt said:
Hi guys, my X1 seems to have some problems connecting to my home wireless belkin router ( N-series). i can locate other networks in the area but fail to locate my N router which is just beside me! please help me! i recently upgraded from a G router to a N router, but it shud be compatible. any ideas?
Click to expand...
Click to collapse
have u checked if your router is sending/recieving B and G signals.
u usually have an option to have just N, B, G or all the signals running
dedt said:
Hi guys, my X1 seems to have some problems connecting to my home wireless belkin router ( N-series). i can locate other networks in the area but fail to locate my N router which is just beside me! please help me! i recently upgraded from a G router to a N router, but it shud be compatible. any ideas?
Click to expand...
Click to collapse
Xperia does not support Draft N. Only B & G Standards. Do what Ganondolf suggested or regret your purchase.
dedt said:
Hi guys, my X1 seems to have some problems connecting to my home wireless belkin router ( N-series). i can locate other networks in the area but fail to locate my N router which is just beside me! please help me! i recently upgraded from a G router to a N router, but it shud be compatible. any ideas?
Click to expand...
Click to collapse
You need to create a "guest" connection. This means your router has to send out two signals. One for your primary users, and one for your guests. Log into your router, new routers should have a guest mode. Enable it, give it a name, assign a pw, and your phone should recognize.
all hope is gone!
i dont think there is a solution to this problem, i confirmed that my router mode is set to B G N, and my phone does not detect the network, however when i set the router to G, it works with the x1. i called belkin and they said that the frequency of the modem is too high for to phone and told me to set the modem to G, however i refused. I bought an N router for a reason for Gods sake. If i was going to set it to G, might as well saved some money and purchased a G router. SAD! looks like nothing can be done.
i have no idea how to do the guest mode, will that work tho?
Which Belkin model do you have?
Most are supported by DD-WRT (alternative, open source firmware) A lot of problems in OEM firmware are solved through the use of DD-WRT, as it offers more options and stability (such as max simultaneous connections for linksys routers)
To check if your router is supported: http://www.dd-wrt.com/dd-wrtv3/dd-wrt/hardware.html
try disable extensions/turbo mode etc, this helps alot on dlink routers
and leave b,g,n on, check if you can change the channels they are running on etc
dedt said:
i dont think there is a solution to this problem, i confirmed that my router mode is set to B G N, and my phone does not detect the network, however when i set the router to G, it works with the x1. i called belkin and they said that the frequency of the modem is too high for to phone and told me to set the modem to G, however i refused. I bought an N router for a reason for Gods sake. If i was going to set it to G, might as well saved some money and purchased a G router. SAD! looks like nothing can be done.
i have no idea how to do the guest mode, will that work tho?
Click to expand...
Click to collapse
No such problem exist with my draft n d-link router?
I doubt that you must switch to G only in order for X1 to connect
In terms of "FREQUENCY" they mentioned, mainly there are two types of settings you can mess with
More advanced draft N router has two major different frequencies - 2.4 Ghz, or 5 Ghz. And if you router is using 5Ghz, then X1 obvious can't connect to the router coz 5Ghz requires the latest draft n technology. However there should always be settings where you can just switch it back to 2.4 Ghz. Personally 2.4 and 5 Ghz doesn't make much difference unless you have 20 wiresless devices all using 2.4 Ghz at home.
Another type of "frequencies" are sometimes called "channels" ... e.g. you will see some wireless hotspot are on CH1, CH2, .... and it should go all the way up to CH 13. These channels operate at frequencies very close to the major frequency, e.g. CH1 = 2.412, CH2=2.417, ... , CH13=2.472. However it has been reported and personally tested that X1 seems to have problems with channels higher than 11.
This isn't a surprising problem because these high channels are designed for 108Mbps wireless adapter and clearly X1 isn't capable of such high speed.
(amusement at "Firefall!": I don't think it's necessary to "regret" purchasing X1 just because it doesn't support draft N? Have you tried using high performance in WIFI settings and realize how fast the battery runs out? How long do you think the battery will last if they place a draft N WIFI chipset into the device? And what sort of HD videos are you planning to watch on your phone that requires draft N speed of 300 Mbps?)
Hence, you should try setting your router to 2.4Ghz mode (if you are currently on 5Ghz) and change it to channels below 11. And your X1 should be able to connect to the router
I have my X1i running with my Belkin N1 Vision Router working perfectly. Check your hardware son .
I have the Belkin N+ router...
http://www.gooddvdstuff.com/news/files.php?file=belkin__109732273.jpg
And my Xperia does not connect to the router unless I create a "guest" mode. So I broadcasted a secondary guest connection and it works.
me again
ok, this is the modem that i am using and having trouble with,
http://www.vsbuyse.be/webafbeeldigen/computer/BelkinF5D8636ED4A.jpg
model, F5D8636
and note, i never regretted buying the x1. It was the modem that i regretted!
any keep giving suggestions and will let u know if i found a solution. THANKS GUYS
dedt said:
ok, this is the modem that i am using and having trouble with,
http://www.vsbuyse.be/webafbeeldigen/computer/BelkinF5D8636ED4A.jpg
model, F5D8636
and note, i never regretted buying the x1. It was the modem that i regretted!
any keep giving suggestions and will let u know if i found a solution. THANKS GUYS
Click to expand...
Click to collapse
not sure what to say bud, maybe changing from 5ghz to 2.5ghz might work if u have a option but like u said if your pc is using n then u dont want to go down to g just so your phone connets.
ps. if your pc does not use n (or any other device) u getting a n router is pointless as even if your pc is connecting, its doing it through g not n.
ps2. i always go for netgear routers, seem to work better for me bud

keep loosing wifi connection at home

Not sure if im the only one but every so often my tab does not connect to my home wifi, it does connect to my vibrant via tether no problem. Now i have had this issue a few other times and the only solution i can come up with is to do a factory reset, once i do that i have to set up the connection then im up and running. Does anyone have the same issue? Any suggestions? Dont want to keep reseting the tab just to get a working connection.
Sent from my GT-P1000 using XDA App
Flash your router with dd-wrt up the default signal strength footprint
http://www.dd-wrt.com/site/index
jarez said:
Flash your router with dd-wrt up the default signal strength footprint
http://www.dd-wrt.com/site/index
Click to expand...
Click to collapse
i dont think its anything to do with the router as i am able to connect my Vibrant and my laptop via wifi and no issues, but with my tab sometimes it just sits there trying try to connect
It is probably your router!
My primary router (WRT300N) connects just fine to my laptop, Wii, HD2 (with winmo) Touch pro II with older android port. But refuses to properly connect the Tab, company laptop (IBM), wife's laptop (Packard Bell), Touch pro II with newer Android ports.
It either does not get a IP or with an IP there is no data transfer.
Connected a WAP54g and all connect just fine!
DD-wrt is not supported for this router (V2), so cannot try that.
Is your ssid hidden? i believe froyo was suppose to able to connect to hidden ssids but try disabling that feature. Change it to wep just to check. I am using wpa2; I haven't had any issues.
Bought myself a new router, and now all can connect just fine.
I have the same problem. It just constantly connects and disconnects. Not sure what to do.
Which is the best router ?
Hello,
i own a TP-Link (TL-WR1043ND) Router. My Speed is "only" 65 Mb/s.
Channel 13
11 bgn mixed
Max Tx Rate 300 Mbps
WLAN is lost after xx minutes when the Galaxy Tab goes in standby.
(WLAN Policy: Never)
Which is the best and fastest router for the galaxy tab?
Thx
P.S.: Sorry about my bad english
oberst said:
Hello,
i own a TP-Link (TL-WR1043ND) Router. My Speed is "only" 65 Mb/s.
Channel 13
11 bgn mixed
Max Tx Rate 300 Mbps
WLAN is lost after xx minutes when the Galaxy Tab goes in standby.
(WLAN Policy: Never)
Which is the best and fastest router for the galaxy tab?
Thx
P.S.: Sorry about my bad english
Click to expand...
Click to collapse
Hi,
I have the same problem here, connection gone after a few mins, Wifi shows still connected although I can't access the net.
Contacted Samsung in the UK and they have asked me to return my Tab to them for repair!
Just a shot in the dark, but maybe useful. Some programs like Locale scan WiFi periodically for location info. It drove me nuts isolating the problem when the WiFi tether on my Droid would stop working after 5-10 minutes (random time but constant, because of when in Locale's scan cycle I started the tether). For those that are having problems of being able connect, but then the connection showing on, but seeming dead, that may be the issue. Toggling WiFi off and on reestablishes it, or you could just disable the program doing the scan until you head out to move around again.
oberst said:
Hello,
i own a TP-Link (TL-WR1043ND) Router. My Speed is "only" 65 Mb/s.
Channel 13
11 bgn mixed
Max Tx Rate 300 Mbps
WLAN is lost after xx minutes when the Galaxy Tab goes in standby.
(WLAN Policy: Never)
Which is the best and fastest router for the galaxy tab?
Thx
P.S.: Sorry about my bad english
Click to expand...
Click to collapse
The Tab doesn't support 5Ghz 802.11n or MIMO (the tab only has a single antenna) so 72Mbps is the best you can hope for over the 2.4Ghz channel, which you _might_ get if you stand right beside the router.
In most cases, 65Mbps is the best you can expect from any router with the Galaxy tab. Virtually no mobile devices seem to support the 5Ghz spectrum that the "fast" 300Mbps 802.11n requires.
Also, you'll get faster speeds if you change your setting from "bgn mixed" to "n only" and see if the tab still connects.
I often have difficulty connection to my WLAN at home, often I need to turn wifi off & on again a couple of times and leave it for a minute before it eventually connects. I don't think the WiFi in Android is particularly robust.

Galaxy Tab 2 10.1 Wifi - Can't Connect to Dlink DIR-645 Router.

I'm having major troubles with my girlfriends Galaxy Tab 2 10.1 Wifi connection.
At my house it connects perfectly.
At her house, with the Dlink DIR-645 N router it tries to connect. Tries to obtain an IP Address for a while, then says that it can't connect because the signal is too weak. (which it isn't) Full bars.
Many other devices connect to this Wifi flawlessly. (iPhone, Galaxy S III, Galaxy Nexus, Galaxy Tab 10.1, ASUS EEE-PC)
I've tried changing channels in the router settings,
I've tried taking off the security (WPA2)
I've tried renaming the SSID
I've tried adding the connection manually on the tablet. (not connect via scan)
I've tried updating the firmware on the Router and the Tablet.
I've tried a wipe/factory reset on the Tablet.
The only way I can get it to connect is to have it connect with a Static IP Address. If i do this, it'll connect and have internet access for a while. But sooner or later it gets booted. I don't want to set up static Ip address on the her router.
And I'm just confused that this doesn't work. Any suggestions? Should i try a custom rom and hope that it's a software issue?
It's going to be hard to get Samsung service to replace it, because it seems to work fine on some other routers.
May be try to change range of router to 2.4 ghz if it is 5 ghz
Or try a custom rom as cm10
Sent from my GT-P5100 using xda app-developers app
Saw some posts about SGT2 have some troubles with n networks. So just try to switch router to b/g mode If it is set to n mode, it is should be help
Really? having trouble with N networks is a bit of a big issue isn't it?
I'll give it a go, but won't that affect transfer speeds and my ability to stream video from my NAS?
how to change it?
Ailir said:
Saw some posts about SGT2 have some troubles with n networks. So just try to switch router to b/g mode If it is set to n mode, it is should be help
Click to expand...
Click to collapse
how can i change router settings from N to b/g? thnx
blueraheel said:
how can i change router settings from N to b/g? thnx
Click to expand...
Click to collapse
The problem is that the Galaxy Tab 2 doesn't have a 5 GHz radio. If you're using 802.11n in the 2.4 GHz band, it'll work with the GT2 (i.e. channels 13 and below). If you're using 5 GHz channels, then the tablet won't see the AP.

Galaxy S 4 will NOT do wireless N (802.11n)

Hello everybody,
I have searched all over the web and these forums trying to find an answer as to why my Galaxy S4 (SGH-M919)refuses to connect to my wifi network using wireless N (802.11n).
I thought something was wrong with my network at first, but I went into service mode on my S4 and clicked on wifi and it says this:
Link Speed: 5Mbps 802.11b
Now, when I'm in service mode looking at that, I click the option to turn off WIFI Power Save Mode. When I turn that off, it refreshes and connects to 802.11n at 54Mbps, but that only lasts for 2 seconds and then it reverts back to 802.11b at 5Mbps. GAH!!!!
My router is set to wireless N only, so I don't understand why my phone insists on using 802.11b instead of 802.11n. My router is an ASUS RT-AC68U and I am not a noob when it comes to networking and routers but I cannot figure this out no matter what I try.
My S4 works perfectly fine on 802.11ac (very fast) but that's only on the 5GHz spectrum and I want to use 2.4GHz for better range and other various reasons.
My router is awesome and very fast, and my S4 did the same thing with my old router. So it's definitely my phone. Any help would be GREATLY appreciated!!! Thanks in advance.
Sent from my Samsung Galaxy S 4 (SGH-M919) T-Mobile

[Q] 802.11AC and 5GHz Issue

I've researched for any past issues on this topic but couldn't find anything similar.
I live in London and use Asus AC68U, I have connected my Note 4 (N910C) and Tab S fine on both 2.4GHz and 5GHz, but never checked whether this is connected on N or AC. The Channel setting on the router is left on Auto, and I've labaled the 5GHz SSID to have a "5G" at the end (eg. 2.4GHz SSID: "My WiFi" ; 5GHz SSID: "My WiFi 5G")
Then flew to Indonesia bringing along the AC68U, reset and reconfigured the Router to be used there, I have also configured an N66U as an Access Point (not repeater). Now my Note 4 cant' even see 5GHz anymore, even though wireless configuration is exactly the same as in London (except the WiFi SSID and password). I then found out a way to know which 802.11 speed my phone is connected to (by doing the #*0011# thing), and turned out it's on 802.11N 2.4Ghz.
I then went to the N66U (out of Radio range of the AC68U) and I still cannot see the 5GHz SSID. So I took out my Tab S 8.4, switched WiFi on, lo behold, 5Ghz is visible and able to connect to both router seamlessly. Checking the connection type, the Tab S is on 802.11AC Ch. 36 Frequency 5180Mhz, WiFi Power Save Mode On, link speed 866Mbps, to the AC68U.
My Dad has a Galaxy S5, it also cannot see the 5GHz SSID, but is at least connected to the 2.4GHz 802.11AC.
I have changed channels manually on the router but still can't see 5GHz from the Note 4, also switched OFF the WiFi Power Save Mode.
So the question is.... does my Note 4 N910C even have AC? And what is going on with my 5GHz band? Has anyone seen this problem before or point me to a thread you've been to?
I've got the n910c and connects in ac on 5ghz fine. I have a netgear r7000 running ddwrt. Has it ever worked for you ?
manook said:
I've got the n910c and connects in ac on 5ghz fine. I have a netgear r7000 running ddwrt. Has it ever worked for you ?
Click to expand...
Click to collapse
I also have the 910F and a Netgear R6300 with DD-WRT.
It took some configuring. But i expect this has something to do with the preset ups for using your router in Indonesia.
itll probably;y work when you get back to wherever you live.
Thanks for the replies.
manook said:
I've got the n910c and connects in ac on 5ghz fine. I have a netgear r7000 running ddwrt. Has it ever worked for you ?
Click to expand...
Click to collapse
5Ghz has worked for me in London using the same Asus router that I used in London, but I'm not sure if my Note 4 ever connected as AC.
fkofilee said:
I also have the 910F and a Netgear R6300 with DD-WRT.
It took some configuring. But i expect this has something to do with the preset ups for using your router in Indonesia.
itll probably;y work when you get back to wherever you live.
Click to expand...
Click to collapse
Well, I brought the AC68U I used in London to Indonesia, the phone was connected on 5GHz on this router when it was in London, but somehow it can't even see the 5GHz SSID now in Indonesia.
I think I need to reset the modem and WiFi module somehow, been searching the web on how to do that but haven't found it yet.
Other devices that are currently able to connect to 5GHz and/or AC:
Galaxy Tab S: Can connect to 2.4GHz + 5GHz on AC
Galaxy S5: Can connect to 2.4GHz AC (Cannot see 5GHz AC)
Laptops: Can connect to 2.4GHz + 5GHZ N
Added Info: Tried WiFi Analyzer, Note 4 still cannot see 5GHz signal while the Tab S can.
Did you put in a local SIM? The phones may be respecting local regulations regarding frequency usage that the other devices don't, as they don't have a SIM giving them locale. I'd be curious what would happen if you put in your London SIM.
rcobourn said:
Did you put in a local SIM? The phones may be respecting local regulations regarding frequency usage that the other devices don't, as they don't have a SIM giving them locale. I'd be curious what would happen if you put in your London SIM.
Click to expand...
Click to collapse
Yeah I'm using local SIM, but when I arrived still with my Voda UK SIM in the phone, the existing N66U Router (before I turned it into Access Point) was transmitting both 2.4GHz and 5GHz, my Note 4 couldn't see it. I thought I had switched off 5G SSID but when I checked, it was ON. Very sure something is up with this Note 4.
I removed the SIM card and inserted it to my LTE Tab S, switched it on, switched WiFi on, connected to 5G just fine.
I'm gonna try re-flashing the same stock ROM. This phone and the Tab are all Non-Rooted btw.
Solution: Don't set the frequency to "Auto". Manually choose the frequency for 5 Ghz, preferably to something low such as channel 36. This worked for me. I haven't tried with any other frequency though. Someone mentioned online that it might be due to Android phones not supporting DFS frequencies.
Good luck.
manook said:
I've got the n910c and connects in ac on 5ghz fine. I have a netgear r7000 running ddwrt. Has it ever worked for you ?
Click to expand...
Click to collapse
I just installed dd-wrt on my netgear r7000 and my n910h stopped seeing the 5Ghz band after that.
With r7000 stock firmware everything is fine.
Could you please tell me what's your dd-wrt settings for the 5Ghz band?

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