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Anyone been able to connect to a 5GHz WiFi network witht the Galaxy Nexus?
Forcing the "Wi-Fi Frequency band" setting to 5GHz only just results in an empty list of available networks, despite the phone being sat underneath a very decent enterprise-grade dual band AP (Ruckus 7363, Atheros chipsets). Have tried a bunch of different channels on the Ruckus AP (in both the 36-64 and 100-136 range) and switched between 20 and 40Mhz channel widths to no avail.
As far as I can tell, the Galaxy Nexus uses a BCM4330 chipset should have a 5GHz amp, would be ashame if there's no 5GHz antenna for it?!
Chris.
My bad. Think I was changing channels on the wrong AP when testing out 5GHz earlier.
The Galaxy Nexus does indeed support 5GHz, albeit on a limited number of channels (connecting at a 65MBps maximum datarate):
36
40
44
48
Just to finish up on this: After a bit of testing with an iPhone 4s (which also uses the same BCM4330 chipset and has no problems with any 5GHz channels), I'd guess that the GN's apparent limited support for 5GHz wifi is down to a software issue.
Basically the channels it supports are the ones that don't require DFS (Dynamic Frequency Selection) to be enabled on the AP, for use in the US (Europe apparently doesn't care about DFS).
I'd guess that the driver as is doesn't support interop with DFS (which I'd assume should be an AP-side function anyway) and rather than trust me that I'm in Europe, it just prevents those channels from being used.
Ashame, as it means 5GHz support is basically broken when it comes to using it with 'enterprise-grade' kit (not sure if consumer APs generally support DFS or not).
it should work with 5 Ghz WiFi
even the SGS2 works with 5 Ghz WiFi
at home i can connect using my 5 Ghz WiFi
chriscole said:
Just to finish up on this: After a bit of testing with an iPhone 4s (which also uses the same BCM4330 chipset and has no problems with any 5GHz channels), I'd guess that the GN's apparent limited support for 5GHz wifi is down to a software issue.
Basically the channels it supports are the ones that don't require DFS (Dynamic Frequency Selection) to be enabled on the AP, for use in the US (Europe apparently doesn't care about DFS).
I'd guess that the driver as is doesn't support interop with DFS (which I'd assume should be an AP-side function anyway) and rather than trust me that I'm in Europe, it just prevents those channels from being used.
Ashame, as it means 5GHz support is basically broken when it comes to using it with 'enterprise-grade' kit (not sure if consumer APs generally support DFS or not).
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Click to collapse
Hmmm...there's something odd going on with my GN with 5Ghz Wifi - I have a couple of Netgear routers 802.11N running on channels 36 and 44 and the GN connected no problems for the first few hours, but now it just won't grab an IP address. I've resorted to the G channels on 2.4Ghz, but have no idea why the handset suddenly won't pick up an IP on the 5Ghz even though I'm getting 'excellent' reception.
Any ideas? I've rebooted the phone and the network. The Mac and the iPad are the other devices on the 5Ghz and they're fine...
chriscole said:
I'd guess that the driver as is doesn't support interop with DFS (which I'd assume should be an AP-side function anyway) and rather than trust me that I'm in Europe, it just prevents those channels from being used.
Click to expand...
Click to collapse
Have you check if it's not just your Regulatory domain settings that are wrong? I don't have a GN yet so I can't check but used to be under Advanced in Wifi settings.
chingf0rd said:
Hmmm...there's something odd going on with my GN with 5Ghz Wifi - I have a couple of Netgear routers 802.11N running on channels 36 and 44 and the GN connected no problems for the first few hours, but now it just won't grab an IP address. I've resorted to the G channels on 2.4Ghz, but have no idea why the handset suddenly won't pick up an IP on the 5Ghz even though I'm getting 'excellent' reception.
Any ideas? I've rebooted the phone and the network. The Mac and the iPad are the other devices on the 5Ghz and they're fine...
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Click to collapse
Works fine on my Netgear WNDR3700, weird.
animaleyes76 said:
Works fine on my Netgear WNDR3700, weird.
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Click to collapse
It's very strange (I've got older DNDR3300 and WNDR3300 in the house) - it can see the SSIDs for 5Ghz, but just won't allocate me an IP address...I've looked at the wifi diagnostics through the *#*#info#*#* and there's nothing I can really do. I'm taking the thing back to '3' tomorrow.
chingf0rd said:
It's very strange (I've got older DNDR3300 and WNDR3300 in the house) - it can see the SSIDs for 5Ghz, but just won't allocate me an IP address...I've looked at the wifi diagnostics through the *#*#info#*#* and there's nothing I can really do. I'm taking the thing back to '3' tomorrow.
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Click to collapse
have you tried allocating it an ip address manually in the router, basically forcing dhcp to allocate a specific one? Did you try connecting with no encryption as well (def worth a go)
animaleyes76 said:
have you tried allocating it an ip address manually in the router, basically forcing dhcp to allocate a specific one? Did you try connecting with no encryption as well (def worth a go)
Click to expand...
Click to collapse
Yup - did all that. turned off encryption, added guest networks, turned off DHCP and entered manual IPs. The GN picks up the G and obtains the IP address no problem, but it just won't with the N...
chingf0rd said:
Yup - did all that. turned off encryption, added guest networks, turned off DHCP and entered manual IPs. The GN picks up the G and obtains the IP address no problem, but it just won't with the N...
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Click to collapse
Bummer. assumed you would have had done all that..
Just to add to the body of knowledge surrounding this. I have an Airport Extreme (Gen2), which had a recent firmware upgrade. This set it's automatic channel selection to use channel 100 - which my GN could not see. It took a downgrade from 7.6 to 7.4.2 for it to use channel 36 - and now I'm happy and connected. (I have other b/g APs in the house, but its nice to be on the fastest!)
clotheyes said:
Just to add to the body of knowledge surrounding this. I have an Airport Extreme (Gen2), which had a recent firmware upgrade. This set it's automatic channel selection to use channel 100 - which my GN could not see. It took a downgrade from 7.6 to 7.4.2 for it to use channel 36 - and now I'm happy and connected. (I have other b/g APs in the house, but its nice to be on the fastest!)
Click to expand...
Click to collapse
Was it a case that the GN could not see your network at all before?
I mean, my GN can 'see' the N networks, it just won't grab an IP - it just says 'Saved, secured WPA2 etc...' and will not obtain an IP.
I'm gonna replace the handset soon anyway with the volume 2g problem.
For reference: The 5Ghz spectrum isn't required to use N-based routing. It'll give you a bit more distance and speed, but not very much (think in the range of an extra ~10%). It's a misconception that 5Ghz is the only way to use the N-band.
As far as distance goes, that shouldn't really matter for your phone unless you're on the absolute fringe of the range. As for speed, you'll absolutely never notice a difference using a phone. The only time you'd notice a difference in speed is when transferring large files from computer to computer (or if your data connection is upwards of 25Mbps, but this wouldn't matter for the phone, either).
OK, if this is just for reference, we'd best get it right ;-) All slightly off topic, but it goes someway to explaining why having the GN support for all the 5GHz channels would be useful.
Signal propagation at 5GHz is generally worse than at 2.4GHz. All other things being equal (xmit power, antenna gains, interference, etc) a 5GHz signal will actually have less range than a 2.4GHz one.
The 2.4GHz/5GHz issue isn't so much about range or relative throughput in the best case scenario. It's about the worst case scenario - what happens to your speed when there's interference.
The 2.4GHz band has three, useful, non-overlapping 20MHz channels (1,6 and 11). 5GHz has around 19 non overlapping 40MHz channels (of which the Galaxy Nexus supports a measly four) *and* a scheme for dynamically avoiding interference on-the-fly (DFS).
This translates into significantly more stable performance on 5GHz compared to a congested 2.4GHz band (as it is in most built up urban areas - eg I see about 30APs broadcasting on 2.4Ghz now from my home in central London).
TLDR; If you live in a field - 2.4GHz is fine. If you live in a city, 5GHz is the future.
I'd suggest the following for a good bit of background on WiFi, along with some useful benchmarks showing just why most domestic APs/Wifi routers are crap in any case:
http://www.tomshardware.com/reviews/wi-fi-performance,2985.html
http://www.tomshardware.com/picturestory/571-wi-fi-beamforming-networking.html
Setting my Linksys 610 DDWrt router to channel 36 with a channel width of 40MHZ did the trick. Thanks!
chriscole said:
The 2.4GHz band has three, useful, non-overlapping 20MHz channels (1,6 and 11). 5GHz has around 19 non overlapping 40MHz channels (of which the Galaxy Nexus supports a measly four) *and* a scheme for dynamically avoiding interference on-the-fly (DFS).
Click to expand...
Click to collapse
Does anyone know if the "measly four" is a mistake by the firmware, a regulatory thing or just a hardware limitation?
My router performs best at channel 161 (it's a DD-WRT firmware thing) which means I can't see it on my phone, but I'm fine to access it on both my netbook and laptop.
Just want to thank the OP for this truly excellent thread. I also uncovered that the GN can also connect to the UNII-3 and the 5.8 ISM bands (channels 149-165), which are also non-DFS.
BinkXDA said:
Just want to thank the OP for this truly excellent thread. I also uncovered that the GN can also connect to the UNII-3 and the 5.8 ISM bands (channels 149-165), which are also non-DFS.
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Click to collapse
Seconded, I must have missed this post originally. I was pleasantly surprised to find that my GN connected to my Linksys E3000 running DD-WRT on channel 161 (40 MHz width).
chriscole said:
My bad. Think I was changing channels on the wrong AP when testing out 5GHz earlier.
The Galaxy Nexus does indeed support 5GHz, albeit on a limited number of channels (connecting at a 65MBps maximum datarate):
36
40
44
48
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Click to collapse
Thank you very much. Simple, concise, worked perfectly. Cheers mate.
I am new to the GS3 on AT&T (or will be when it gets here in the mail, yahoo!!).
I have been a Droid X user for 2+ years, on the Verizon network.
Jumped ship over to AT&T for discount reasons, and decided on the GS3. Wife's arrived last yesterday... horrible WiFi connection issues on our network, but the GS3 would identify both the 2.4 ghz and 5 ghz networks from our Netgear router.
After beating my head agains the wall, I ran the UCLH9 OTA update and if fixed the wifi issues, but all we can see is the 2.4 ghz network, and not the 5 ghz anymore.
Any ideas? Thoughts? Discussion?
More of a though than a solution, but maybe they decided to remove the 802.11a functionality from the radio since it is an antiquated standard, not to mention 802.11g for all intensive purposes is exactly the same only on the 2.4Ghz frequency. This could have also been handed down from higher up, from the IEEE or even FCC to make room on the 5Ghz band for new technology. New technology such as 802.11n which runs on both 2.4 and 5Ghz, i'm going out on a limb and guessing your router ins't wireless N capable or you would probably see this. There is also a new wireless standard in development (802.11ac) which will be exclusively on 5Ghz. Spectrum is like land, they* quit making it long ago...the only way to move forward is utilize what is there better and tear down the old stuff in favor of the new.
* I use the term 'they' vaguely, i'm not here to start a theological debate.
I believe our router (Netgear WNDR3700 Dual band) has both. I have a dell laptop that 'sees' both the 2.4 ghz and 5 ghz SSID's. So I'm relatively sure the router has both.
I was unaware that N technology runs on both the 5 ghz and 2.4 ghz simultaneously. I'll have to look into this to see if this is related.
The loss of detecting the 5 ghz still makes me go hmmm?
Thanks for the reply.
The router you listed is an N capable router, why your phone isn't seeing the 5ghz band i'm not sure. As my signature shows im running AOKP and the KT747 kernel which uses different wifi drivers. I currently don't have a wireless N network thanks to some lightning earlier this year to check, but i can say i've never had any problem with connecting to any wifi networks. I would start with the router and check the settings there as to how the network broadcasts, what frequencies its on etc. I have had problems in the past with running on the 20/40z frequencies so you might change that to 20 exclusively and see if that helps you.
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?
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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
I'm doing first tests with my brand new Z2 Force EU unbranded version and I'm focusing on WiFi since of issues haved with precedent Moto Z...
First impression are not so great... WIFi scanning is quite slow and low signal networks aren't stable at all...
More it seems to me that it is unable to see Channel 13 networks... Is it limited up to channel 11 (as imposed on some countries?)
Any impressions are the welcome...
enetec said:
I'm doing first tests with my brand new Z2 Force EU unbranded version and I'm focusing on WiFi since of issues haved with precedent Moto Z...
First impression are not so great... WIFi scanning is quite slow and low signal networks aren't stable at all...
More it seems to me that it is unable to see Channel 13 networks... Is it limited up to channel 11 (as imposed on some countries?)
Any impressions are the welcome...
Click to expand...
Click to collapse
That's odd... I can't testify if band 13 works, but WiFi is great here for me in the states. I never use 2.4Ghz though. 5Ghz gets better signal than other devices in my house. It even grabs signal from the outside! (Brick exterior, wood panel interior walls).
I can't stand the issues inherent in 2.4 natively (speed, latency, jitter, etc fixed with 5Ghz AC) so I cannot attest to 2.4 having issues. 5Ghz AC works great though! 730 Mbps LAN speeds and capping my provision speed from ISP.
Uzephi said:
That's odd... I can't testify if band 13 works, but WiFi is great here for me in the states. I never use 2.4Ghz though. 5Ghz gets better signal than other devices in my house. It even grabs signal from the outside! (Brick exterior, wood panel interior walls).
I can't stand the issues inherent in 2.4 natively (speed, latency, jitter, etc fixed with 5Ghz AC) so I cannot attest to 2.4 having issues. 5Ghz AC works great though! 730 Mbps LAN speeds and capping my provision speed from ISP.
Click to expand...
Click to collapse
Yes, even in my previously Moto Z issues was mostly related to 2.4 GHz, with 5 GHz working better...
I recall that Band 13 has never worked on a Moto unit with me. Router is an AVM Fritzbox 7390 and the new 7590.
Moto X 2014, Style (Pure), Force, Moto360 Smartwatch, Z and Z2 Force Band 13 was never available.
Passerati said:
I recall that Band 13 has never worked on a Moto unit with me. Router is an AVM Fritzbox 7390 and the new 7590.
Moto X 2014, Style (Pure), Force, Moto360 Smartwatch, Z and Z2 Force Band 13 was never available.
Click to expand...
Click to collapse
On my "old" Z it worked... until 2.4 GHZ stopped to work at all...
Edit: I've just found that channels 12 & 13 are enabled on country codes basis. Since I was testing it without a sim card inserted, probably it is working with them disabled. I'll retest it with a sim card ASAP...
enetec said:
Edit: I've just found that channels 12 & 13 are enabled on country codes basis. Since I was testing it without a sim card inserted, probably it is working with them disabled. I'll retest it with a sim card ASAP...
Click to expand...
Click to collapse
Confirmed they work flawlessly as soon as I inserted an Italian SIM in phone...
Maps location seems to unlock EU channels
My Z Play wasn't seeing channels 12 & 13 here in the UK even with a UK SIM in the phone. Checking other forums, I saw that someone with a Moto G had been able to connect to 13 by letting Google Maps detect the phone's location, so I opened up Maps and hit the locate button, then went into Settings > Wi-Fi. I could now see and connect to a channel 13 network, and it gave the same up/down bandwidth that I had been getting on 11. So it looks like that could be another solution if the SIM doesn't do it.
Hi,
it's all in the title, many websites announced it provides 802.11ac (since it's the same 625 chip it would make sense) while the official spec doesn't, so, does it ?
No, 5 GHz n is max.
That there is no ac wifi can be a problem? Because I'm thinking about replacing my dear old LG G2 with this a2l, but that's one of the things that's blocking me.
GeNiO790 said:
That there is no ac wifi can be a problem? Because I'm thinking about replacing my dear old LG G2 with this a2l, but that's one of the things that's blocking me.
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Click to collapse
Do you really need to download something at speeds over 300 Mbps on your phone?
There is already have 802.11n at 5 GHz.
And don't think that 5 GHz will ever supersede 2.4 GHz, because you should know that more high frequencies means less signal penetration through obstacles, but also more speed.
BubuXP said:
Do you really need to download something at speeds over 300 Mbps on your phone?
There is already have 802.11n at 5 GHz.
And don't think that 5 GHz will ever supersede 2.4 GHz, because you should know that more high frequencies means less signal penetration through obstacles, but also more speed.
Click to expand...
Click to collapse
Why you defend the undefendable?
The "****ty" mediatek from the 2015s Redmi Note 2 already allowed Wifi AC
The Snapdragon 625 also can handle it, so this is another ****ty movement by Xiaomi
Also, your comment is kinda tech illiterate, because even when the THEORETICAL limit is 300Mbps that's theoretical and ideal conditions.
Yes, I want speeds over 300Mbps (which in best will translate into 30MB/s speeds) to transfer files wirelessly over my LAN or to browse with my 600Mb FTTH connection.
srgperez said:
Why you defend the undefendable?
The "****ty" mediatek from the 2015s Redmi Note 2 already allowed Wifi AC
The Snapdragon 625 also can handle it, so this is another ****ty movement by Xiaomi
Also, your comment is kinda tech illiterate, because even when the THEORETICAL limit is 300Mbps that's theoretical and ideal conditions.
Yes, I want speeds over 300Mbps (which in best will translate into 30MB/s speeds) to transfer files wirelessly over my LAN or to browse with my 600Mb FTTH connection.
Click to expand...
Click to collapse
So, if you need 802.11ac and speeds over 300 Mbps, don't buy this phone. It's as simple as that.
BubuXP said:
So, if you need 802.11ac and speeds over 300 Mbps, don't buy this phone. It's as simple as that.
Click to expand...
Click to collapse
It happens that I want a pure Andoird Phone sub 200$ with less than a TV for screen, so yes, this phone is capable of more than that's offering, which doesn't prevents me from being critical.
u363840 said:
Hi,
it's all in the title, many websites announced it provides 802.11ac (since it's the same 625 chip it would make sense) while the official spec doesn't, so, does it ?
Click to expand...
Click to collapse
I think this phone can support wifi ac but you need to unlock bootloader and install custom rom to unlock dual band. I'm using redmi note 4 also have no wifi ac in spec sheet and also not available when scanning for 5ghz but after installing custom rom it is available.5ghz band is available in the chip but xiaomi locked 5ghz just to reduce the price of the device to avoid paying technology from qualcomm. I will buy this phone next week and i will give you guys feedback after using custom roms.for me why i need dual band wifi is because i'm using public wifi alot! So thats why i need a choice to avoid traffic which normally people just connects to 2.4ghz and less in 5ghz
Which rom you used for redmi note 4? Thanks
Tetelur said:
I think this phone can support wifi ac but you need to unlock bootloader and install custom rom to unlock dual band. I'm using redmi note 4 also have no wifi ac in spec sheet and also not available when scanning for 5ghz but after installing custom rom it is available.5ghz band is available in the chip but xiaomi locked 5ghz just to reduce the price of the device to avoid paying technology from qualcomm. I will buy this phone next week and i will give you guys feedback after using custom roms.for me why i need dual band wifi is because i'm using public wifi alot! So thats why i need a choice to avoid traffic which normally people just connects to 2.4ghz and less in 5ghz
Click to expand...
Click to collapse
I have also the redmi note 4 and I need the dual band, so the question about the rom you used. thks
novreisc said:
I have also the redmi note 4 and I need the dual band, so the question about the rom you used. thks
Click to expand...
Click to collapse
theres wifi bonding module, rum 2.5ghz and 5ghz at 40mhz, should be satifactory. on some MTK solution AP it shows 300mbps link speed