Database Info

Wireless-N

Is anybody experiencing issues with Wireless N connectivity on the Captivate? Everybody and everything is telling me it can do Wireless N, but it wont see my Wireless N network at all! I've done everything i could to the router to make it as simple as possible for the phone to see it, but it never works!
Anybody know what the deal is on this? Seems to me like it doesnt have Wireless N capabilities.

2.4 Ghz band only. If your router is 5 Ghz your Galaxy won't see it at all.

2.4 works for me. Using a Linksys WRT320N from Sams.
Sent from my SAMSUNG-SGH-I897 using XDA App

works fine with netgear wndr3700.
However, it does get slightly less speed than my laptops on speakeasy speedtest

WheresWaldo said:
2.4 Ghz band only. If your router is 5 Ghz your Galaxy won't see it at all.
Click to expand...
Click to collapse
There we are! Thanks for that info! Where did you find that? Maybe i overlooked it everywhere i've seen it.. But thats the case! Mines running 5GHz right now, thats why its not seeing it, i changed it to 2.4 and it worked beautifully!

We, or at least I, found it in the specification for the chipset that runs wifi/Bt/gps wherein it specifies the frequency/speed of the N to be N-150 which means 2.4GHz bands in conjunction with the b/g connectivity. Ah if it were only a/b/g/n... then it would have worked at 5GHz

Does The Sensation Do Both - 801.11n bands. 5 GHz and/or 2.4 GHz?

Does The Sensation Do Both - 801.11n bands. 5 GHz and/or 2.4 GHz?
I have a netgear N600 - wndr3400 Seems It ONLY Does 5ghz N ?
And the Dumb Phone isnt showing the N network
It Shows Only B/G Network ..
I am Confused .. Any Thoughts Or Help Guys ?

WarlockW said:
Network - 801.11n bands. 5 GHz and/or 2.4 GHz?
I have a netgear N600 - wndr3400 Seems It ONLY Does 5ghz N ?
And the Dumb Phone isnt showing the N network
It Shows Only B/G Network ..
I am Confused .. Any Thoughts Or Help Guys ?
Click to expand...
Click to collapse
the phone isn't dumb, it's in the specs that it doesn't see 5ghz plus you bought the wrong router anyway....Linksys FTW but if you log onto the router you should be able to make it broadcast 2.4ghz N and the phone will see it. http://www.htc.com/www/smartphones/htc-sensation/#specs

nccu_eagles said:
the phone isn't dumb, it's in the specs that it doesn't see 5ghz plus you bought the wrong router anyway....Linksys FTW but if you log onto the router you should be able to make it broadcast 2.4ghz N and the phone will see it. http://www.htc.com/www/smartphones/htc-sensation/#specs
Click to expand...
Click to collapse
Well The link you gave does not show what ghz the phone will run on.
And Its a Netgear not a linksys :/
However after you said "you should be able to make it broadcast 2.4ghz"
I did go back and look at the wireless settings .. a found you can change
the speed of the 2.4ghz channel .. from 54 - 145 - 300 < I set it to 300
However I am Not sure I am connecting with "N" Speeds with the phone.
Is there a way to tell ? If your connected as b/g/ or N ?

WarlockW said:
Well The link you gave does not show what ghz the phone will run on.
And Its a Netgear not a linksys :/
However after you said "you should be able to make it broadcast 2.4ghz"
I did go back and look at the wireless settings .. a found you can change
the speed of the 2.4ghz channel .. from 54 - 145 - 300 < I set it to 300
However I am Not sure I am connecting with "N" Speeds with the phone.
Is there a way to tell ? If your connected as b/g/ or N ?
Click to expand...
Click to collapse
Sensation connects to b/g/n which is normally 2.4ghz it would say "A" as in a/b/g/n if it connected to 5ghz networks. I brought up Linksys because they are 100 times better than netgear routers...

I'm connected to a 2.4ghz wireless N network on my Sensation right now...

P5100 a/b/g/n - Can't see my home 5Ghz network

The specs indicate that the Galaxy Tab 2 10.1 has a/b/g/n capability.
Why is it that mine doesn't see my home N (5Ghz) network? (the router is broadcasting the SSID and I can connect with other devices)
Anyone else experience this? or know the reasoning?
Thanks.

Why don't you try to change that wifi router?
Sent from my GT-P5100 using XDA Premium HD app

802.11 N can use 2.4 Ghz and 5 Ghz (depend on hardware spec), and usually 5 Ghz spectrum are used in some high end / outdoor router. Almost all smartphone and handheld device use standard 2.4 Ghz, so you can set your router to use 2.4 Ghz and "n" network.

innov said:
802.11 N can use 2.4 Ghz and 5 Ghz (depend on hardware spec), and usually 5 Ghz spectrum are used in some high end / outdoor router. Almost all smartphone and handheld device use standard 2.4 Ghz, so you can set your router to use 2.4 Ghz and "n" network.
Click to expand...
Click to collapse
Ah.. I see. This must be it. My network is certainly set to 5Ghz. It's interesting to note that my older Atrix can see the 5Ghz network, but the Tab 2 cannot.

The Juggler said:
Ah.. I see. This must be it. My network is certainly set to 5Ghz. It's interesting to note that my older Atrix can see the 5Ghz network, but the Tab 2 cannot.
Click to expand...
Click to collapse
its because 5ghz was thought to be the next band standard but it didnt catch on as intended

Help getting wifi 5ghz

Hello.
I an having an issue with my sm-g955fd phone. I need to use the 5ghz frecuency for wifi and I can't seem to make it work. Flashed Renovate Ice 9.5 and tried many different csc's but none enables 5ghz wifi. If anyone could point me to which custom rom to flash or csc to try. I would be most greatful forever.
Thanks in advance.

Bobbyto said:
Hello.
I an having an issue with my sm-g955fd phone. I need to use the 5ghz frecuency for wifi and I can't seem to make it work. Flashed Renovate Ice 9.5 and tried many different csc's but none enables 5ghz wifi. If anyone could point me to which custom rom to flash or csc to try. I would be most greatful forever.
Thanks in advance.
Click to expand...
Click to collapse
How's 5ghz work when on stock OS?

Does it support the 5ghz wifi (hardware wise)?
I know most devices are still on the 2.5 or 2.4 (don't know exactly which).

RossTeagan said:
Does it support the 5ghz wifi (hardware wise)?
I know most devices are still on the 2.5 or 2.4 (don't know exactly which).
Click to expand...
Click to collapse
Yes of course it does. All Samsung phones have used 5GHz for years.
If there is a problem getting an S8 to work then it's either a (rare) fault, or due to the custom ROM.

JeffDC said:
How's 5ghz work when on stock OS?
Click to expand...
Click to collapse
5ghz didnt work either on stock rom. That's why i first tried changing it to a custom rom.

RossTeagan said:
Does it support the 5ghz wifi (hardware wise)?
I know most devices are still on the 2.5 or 2.4 (don't know exactly which).
Click to expand...
Click to collapse
I think so. But i may be wrong. The model is sm-g955fd. How can I tell if the hardware supports 5ghz?

Bobbyto said:
I think so. But i may be wrong. The model is sm-g955fd. How can I tell if the hardware supports 5ghz?
Click to expand...
Click to collapse
All S8/S8+ variants include support for 5 GHz WiFi. Are you sure you have properly set up your AP? Does the 5G connection work with some of your other devices? Try getting closer to the AP. If it does not work by then, it is likely a hardware fault.

kernel.killer said:
All S8/S8+ variants include support for 5 GHz WiFi. Are you sure you have properly set up your AP? Does the 5G connection work with some of your other devices? Try getting closer to the AP. If it does not work by then, it is likely a hardware fault.
Click to expand...
Click to collapse
I have tried with different devices and AP's. The phone doesnt pick the ssid of any of them.

Bobbyto said:
I have tried with different devices and AP's. The phone doesnt pick the ssid of any of them.
Click to expand...
Click to collapse
As others have stated Samsung phones and other makes of high end phones have supported
2.4GHz and 5GHz wi fi for several years.
Although I wouldn't expect your problem to be caused by a custom Rom else other users of the ROM would likely have reported the problem , I would suggest putting a standard official Samsung rom on your phone at least until you get your wi fi functionality.
I would suggest a free play store app like wi fi analyser to easily determine which wi fi signals are seen by your S8+
https://play.google.com/store/apps/details?id=com.farproc.wifi.analyzer
Also be aware when you do get 5GHz working you will notice higher data bandwidth than with 2.4Ghz but less range from your router to your phone before signal drop out.

RR-99 said:
Yes of course it does. All Samsung phones have used 5GHz for years.
If there is a problem getting an S8 to work then it's either a (rare) fault or due to the custom ROM.
Click to expand...
Click to collapse
I did some research and on gsmarena I found that Galaxy S8+ uses the Wi-Fi 802.11 (https://www.gsmarena.com/samsung_galaxy_s8+-8523.php)
Went on Wikipedia and it seems that this 802.11 support communication in the 900 MHz and 2.4, 3.6, 5, and 60 GHz frequency bands. (https://en.wikipedia.org/wiki/IEEE_802.11)
Also, I checked my home network and the router is working both on 2.4 and 5, however, the 5 (which is set as another network) can't be used y any device (no laptop or smartphone).
I don't want to create confusion here, but it seems this 5ghz frequency is not as usual as the 2.4 one. And by checking my Internet connection speed on the 2.4ghz frequncy, it looks like there is no advantage of using the 5 frequency (my Internet speed on wifi is close to the Internet speed via Lan cable).

RossTeagan said:
I did some research and on gsmarena I found that Galaxy S8+ uses the Wi-Fi 802.11 (https://www.gsmarena.com/samsung_galaxy_s8+-8523.php)
Went on Wikipedia and it seems that this 802.11 support communication in the 900 MHz and 2.4, 3.6, 5, and 60 GHz frequency bands. (https://en.wikipedia.org/wiki/IEEE_802.11)
Also, I checked my home network and the router is working both on 2.4 and 5, however, the 5 (which is set as another network) can't be used y any device (no laptop or smartphone).
I don't want to create confusion here, but it seems this 5ghz frequency is not as usual as the 2.4 one. And by checking my Internet connection speed on the 2.4ghz frequncy, it looks like there is no advantage of using the 5 frequency (my Internet speed on wifi is close to the Internet speed via Lan cable).
Click to expand...
Click to collapse
802.11 has a large number of subcategories
802.11a
802.11b
802.11n
802.11ac
and a vast number of others.
These have different frequency allocations and different channel bandwidth.
I could have explained better that in some cases 2.4Ghz will give adequate throughput (at or close to your internet speed)
802.11g is a 2.4Ghz standard with maximum of 54Mbps
However if internet speed is much higher as in my case then I get benefits from using
802.11ac 5GHz standard with single link bandwidth up to 500Mbps.
I would agree that wi fi using 5GHz probably not as common usage as 2.4Ghz which can have additional benefits as less potential for interference from nearby wi fi that uses same frequency range

RossTeagan said:
I did some research and on gsmarena I found that Galaxy S8+ uses the Wi-Fi 802.11 (https://www.gsmarena.com/samsung_galaxy_s8+-8523.php)
Went on Wikipedia and it seems that this 802.11 support communication in the 900 MHz and 2.4, 3.6, 5, and 60 GHz frequency bands. (https://en.wikipedia.org/wiki/IEEE_802.11)
Also, I checked my home network and the router is working both on 2.4 and 5, however, the 5 (which is set as another network) can't be used y any device (no laptop or smartphone).
I don't want to create confusion here, but it seems this 5ghz frequency is not as usual as the 2.4 one. And by checking my Internet connection speed on the 2.4ghz frequncy, it looks like there is no advantage of using the 5 frequency (my Internet speed on wifi is close to the Internet speed via Lan cable).
Click to expand...
Click to collapse
I use 5G all the time..have high speed internet so see big diff. Since you say none of your devices can connect to 5G, you should play around with channel used..know there is a diff between US and Europe and channels used.
If you see same speed from reg wifi and hardwired lan line..5G will not make a diff.

Thanks to everyone i deffinitely cant get it to work. The reason I need 5ghz is cause i am using a slinstudio device wich works only on 5ghz frecuency and i cant connect to it. So i tried other 5ghz networks and found that i cant connect either. I guess i will have to change phones or something but its a shame i cant get it to work.

Another potential solution is to check your router's IP blocklist. I had the S7 Edge and now the S9+ and apparently the phone may spam the router with UDP requests making the router think you are performing a DDOS attack. Clearing the IP your phone is using from the block list may resolve the issue.

S8 on 5ghz WiFi
To get your device to run on 5ghz WiFi all you need to do is ...
Open WiFi connections ...
Add new network ...
Type out your SSID followed by a (space) and the number 2 ...
So ... if your SSID is homeWiFi ... you need to add homeWiFi 2 ... the pass key is the same and won't need changing

RossTeagan said:
Also, I checked my home network and the router is working both on 2.4 and 5, however, the 5 (which is set as another network) can't be used y any device (no laptop or smartphone).
Click to expand...
Click to collapse
Your router is likely using a channel assignment that isn't available to your client devices, check the ETSI standards for acceptable use on the 5GHz band if you're in Europe.

ear brother, i think...View attachment 5261589

5Ghz Wifi not detecting

Hi I got realme 5 pro 8gb variant 2 days ago as per specs it supports dual-band wifi 5ghz but it is not detecting my 5ghz wifi from the router. can someone please help me with this?
I tried to change the channel but in vain. That 5ghz wifi is shown on my laptop but not on phone.

Almost the same happens with my Realme Q. When I share hotspot on 2.4 GHz every device detects it and is able to connect. When I share 5 GHz mobile devices won't see it neither does my old Desktop PC that has wifi adapter.

greenys' said:
Almost the same happens with my Realme Q. When I share hotspot on 2.4 GHz every device detects it and is able to connect. When I share 5 GHz mobile devices won't see it neither does my old Desktop PC that has wifi adapter.
Click to expand...
Click to collapse
Yeah its really sad for me because i got a new 5Ghz Router then i thought my internet will be stable as there are many 2.4Ghz wifi devices in my neighborhood so i decided to move to dual-band to get rid of disconnections and unstable speed

bunny789 said:
Yeah its really sad for me because i got a new 5Ghz Router then i thought my internet will be stable as there are many 2.4Ghz wifi devices in my neighborhood so i decided to move to dual-band to get rid of disconnections and unstable speed
Click to expand...
Click to collapse
I think the issue has something to do with antenna of the device and which bands does it support. Perhaps? I'm sure they use different bands in china and different lte/4g/wifi technologies there than someplace else, other countries in the world.

Hello All,
I have Realme X2 Pro. I can connect to my 5GHz home wifi. But I am not able to create a 5GHz hotspot from the phone ....very frustrating.

I got a realme 5 pro 8gb and it its detecting my 5ghz wifi

Check and try change your Channel WIFI 5G and Setting Region...some region can accesss Limit Channel WIFI...I have same Problem but now Detect after Change my Channel WIFI 5G.

my R5Pro have the same problem, but when i change settings channel at my dlink router, the problem is solved. I change to chanel 149.