Has anyone noticed issues when roaming between AP's using the Note 3? My wife's Moto X, my old iPhone, and my iPad 3, roams perfectly. However, I can't get the Note 3 to switch APs even when I'm standing next to the antenna (literally -35 dBM signal vs -70 dBm) ! I'm using WiFi Analyzer to grab the radio stats.
AP1 uses both a 2.4Ghz Radio and a 5Ghz radio. All ssid's are the same with the same security. One is on channel 1, other is on channel 6.
AP1 reads about -40 dBm in our bedroom and -72 dBm in my office in the basement.
AP2 reads about -70 dBm in our bedroom and -55 dBm in my office in the basement.
The note 3 never roams to the stronger AP, even when the signal difference is massive. Is this a known problem and are there any workarounds?
Thanks -
Ben
BenChase said:
Has anyone noticed issues when roaming between AP's using the Note 3? My wife's Moto X, my old iPhone, and my iPad 3, roams perfectly. However, I can't get the Note 3 to switch APs even when I'm standing next to the antenna (literally -35 dBM signal vs -70 dBm) ! I'm using WiFi Analyzer to grab the radio stats.
AP1 uses both a 2.4Ghz Radio and a 5Ghz radio. All ssid's are the same with the same security. One is on channel 1, other is on channel 6.
AP1 reads about -40 dBm in our bedroom and -72 dBm in my office in the basement.
AP2 reads about -70 dBm in our bedroom and -55 dBm in my office in the basement.
The note 3 never roams to the stronger AP, even when the signal difference is massive. Is this a known problem and are there any workarounds?
Thanks -
Ben
Click to expand...
Click to collapse
Are AP1 and AP2 identical in all respects? As in, same router make, same model, same firmware release version, and exactly identical configuration settings (except channel)?
If not, then honestly all bets are off; simply put there's more to it than just signal strength. Noise in alternate channel, AP beamforming capabilities (e.g. MIMO), MCS's each AP supports, other STAs participating in the BSSID, etc
Also, is there any reason to care? For instance, if the only traffic you care about is coming from the internet and it is rate capped at less than 11 Mbps, an old 802.11b router will get you about as much throughput as a brand-new 802.11ac router - the "extra speed" is irrelevant in that case since the router is not the rate-limiting behavior. The situation might be different if you are using a DLNA local server for video streaming though - and both routers were wired to the same content server, not connected to the router via wireless.
You should make a throughput comparison, not a signal strength comparison. Turn only one AP on at a time and download a huge file from a laptop or similar which is wired to that router's switch. Hopefully the source can actually stream data fast enough to saturate each router. Doing an experiment like that might be rather revealing if you have different router models.
You might also want to try an experiment where you turn off the favored "weak AP", make sure the N3 associates with the alternate "strong" AP, and then turn the "weak" AP back on to see if the N3 reverts its' association. If it does, there's likely a reason for that. Not that it will be obvious, though.
HTH
I am having AP roaming issues as well. Using unlocked Note 3(N9005) on a campus network with 180+ identical centrally-controlled Cisco 1142 access points. No other device on campus is having this issue as far as I can tell (I'm the guy they would complain to).
My own android tablet, ipad, dell laptop, and 20+ various devices I have access to in the office can roam just fine.
Related
Is it normal that my hd2 has lower wifi reception than my laptop? I mean, my router is in the living room and i have 4 to 5 Bars of wifi signal on my laptop in the bedroom, but i have only one bar on my HD2! There are two walls(one room) between living room and bedroom? I've try'd it at my friends house with his laptop and his router, it's the same thing.
Is it normal the phone to have lower reception or may i try to flash a new radio?
I'm using stock ROM 1.48 with radio 2.05.
Thanks in advance!
doesn't anybody have this problem?
My HD2 gets slightly less reception bars than my
laptop in the same location. Could be the way the meters are calibrated, but more likely the larger antenna in the laptop. With wireless N enabled my internet speed tests seem about the same with two bars as with three. Almost same with N disabled.
I have a linksys WRT54GL router and the HD2 gets low signal strength. Only about 7m away from the router and behind one wall. So I am not sure what is up. The router also has 7db antenna attached.
Laptops get much better signal strength. Not sure what the issue is.
A phone doesn't have the same amount of Power as a laptop nor the Antennas Range ... On my Laptop i get several WiFi Signals while on my HD2 I only get two... In the Same location
Could be that you need the wireless N enabled on your phone use the search option
Thanks for the tip about the wireless N enabled on the phone.
I understand that laptops have higher powered antennas. But even if I place the phone right next to the router it will not get 100% signal strength. It will go to maybe 50-60% tops. This is with the phone right next to the router.
Maybe a radio upgrade etc might be on order.
Will try the N enabled feature 1st, even though I use a G router.
try to remove the battery cover. See this thread: http://forum.xda-developers.com/showthread.php?t=785907
antenna in your laptop will be much bigger and better located than the one in your phone
with a WRT54GL Router The Wireless-N Option will have no effect.
Your router only supports Wireless-G
so i've been getting wifi drops for a while now...never really tested until last night. Seems, around 15 yards from my router, though a wall or two granted....I only get 1-2 bars of signal. In this 1-2 range, (my couch), it will drop the wifi signal approximately every 15-20 seconds....stay unconnected for 1 second and then reconnect. If I get closer to the router though, no drops. I don't understand why the tab can't hold a low signal for wireless consistently.
sincerity said:
so i've been getting wifi drops for a while now...never really tested until last night. Seems, around 15 yards from my router, though a wall or two granted....I only get 1-2 bars of signal. In this 1-2 range, (my couch), it will drop the wifi signal approximately every 15-20 seconds....stay unconnected for 1 second and then reconnect. If I get closer to the router though, no drops. I don't understand why the tab can't hold a low signal for wireless consistently.
Click to expand...
Click to collapse
I was having this same issue. What fixed everything up for me was setting my router to use Long Preamble. A500 & HP Netbook stay connected now.
Give that a shot. Good luck!
I believe there aare issues with some routers.or maybe settions some have on there routers.I have a 40.00 netgear b/g/n .router its located in my basement back at the end of the hall kinda under the kitchen.I can go out back about 20 yards from the house and still have 1-2 bars
Also my Iconia will see several neighbors routers and the house are all in the center of double size lots.the one signal I pick up with two bars I know is in the house across the street.
My router security is simple I have dhcp on.but secure by Mac address.this could be a solution.set this then add each device in the Mac assess pannel in the router.bye the way this is the most secure.I.also.have broadcasting turned off.to get another computer to even see my router I have to log into the router from another computer.then give the new machine access.I use this due to open file sharing.
Good luck.
sincerity said:
so i've been getting wifi drops for a while now...never really tested until last night. Seems, around 15 yards from my router, though a wall or two granted....I only get 1-2 bars of signal. In this 1-2 range, (my couch), it will drop the wifi signal approximately every 15-20 seconds....stay unconnected for 1 second and then reconnect. If I get closer to the router though, no drops. I don't understand why the tab can't hold a low signal for wireless consistently.
Click to expand...
Click to collapse
More to the point, you could be behind 1 wall and get a bad signal which might not have anything to do with the tablet. If you've got insulated walls that use a foil wrap, good night.
Plus 45feet, while not particularly far away, when you couple walls and electromagnetic interference + distant, those all add to the level of signal degradation. If you've *properly* taken into account all the variables, then [and only then] can you quantify the wifi capabilities of the tablet.
I'm not saying you didn't, I'm just throwing this into the discussion with my primary point being that short distance and few walls [generalizing] isn't equal to a devices capability to process a signal. (;
nice replies...thanks....I'll try the long preamble...not sure what that is will have to research. And yea gamma, that is definitely true about the different kinds of walls etc. I can use my thunderbolt's wifi perfectly from anywhere in the house and actually out of the house at my daughters swingset which is a good 75 yards away. Apples and oranges I know....but i've never had wifi signal problems in this house otherwise except for the iconia. I am fairly sure it's a conflict with the router and the tab of some sort
It all depends on the device radio and router combination. I have an ASUS WAP that doesn't play well with Atheros brand radios. Switched my laptop to an Intel WiFi radio and away went my connection issues. Both my Motorola Atrix and my Acer Iconia have the same range/connection speed, no problems with dropped connection that I've found. Take it to my parents house with a Linksys WAP and problems galore.
Hi,
I have huge issues on my TF with Wi-Fi, I am really despaired with it. Signal strength is weak even if I am standing very close to my router - on default wi-fi icon it shows 2 sections of 3 and Wi-Fi Analyzer says signal is -55db. Few steps away it drops to -63db. And If i decide to go to another room signal stays around -66db and connection drops in and out like hell, sometimes it just can't connect at all for minute or so.
First thing I was thinking it's my router transmitter is week - it was abit old, but I never heard problems with it before. So I bought new router 300mbs N router with 3 antennas and very good signal. This not helped at all. Signal strength shown by Wi-Fi Analyzer remains pretty same with all other problems.
I've tried various wireless settings - b/g/n only, various channels, security on/off etc, I've tried various ROMs - not much difference. I am beginning to think there's some hardware malfunction on my TF but still hoping I missed something. May it be that TF is performing badly with this exact router? My Nokia Symbian phone shows excellent signal strength overall whole flat and I don't have any disconnects sitting in farthest corner.
Any advise welcome. Thanks
i have a Samsung galaxy tablet (the original). using wifi analyzer, the transformer consistently has a 10 dBm lower signal level than the galaxy.
I hadn't compared the signal level with my Incredible, but looking at it side by side also shows the 10 dBm lower signal...
randy
Please do a search for wifi issues.loads of threads have covered this topic before
Some people have no problem, while others like myself have issue. So let's figure out if this is a router config issue, since most Wifi problem with Android have to do with the router itself. I'll start off with mine.
Tablet date of purchase: September 12th
Router: ASUS RT-N66U dual-band (2.4 & 5 Ghz) with latest firmware
Wireless configuration:
- 2.4 Ghz for B/G
- 5 Ghz for N only
Distance from router to tablet: less than 50 ft
Issue: sporadic network connection. I got full Wi-fi signal bars, good Internet connection, but then cut-out and no connection. Back again after 10-20 seconds.
Fix(?): Changed the router configuration for the 5Ghz radio from 20/40 Mhz to 40 Mhz. This seems to tame the problem. I still have sporadic connection, but far less and connection is back again after a few seconds.
lanwarrior said:
Some people have no problem, while others like myself have issue. So let's figure out if this is a router config issue, since most Wifi problem with Android have to do with the router itself. I'll start off with mine.
Tablet date of purchase: September 12th
Router: ASUS RT-N66U dual-band (2.4 & 5 Ghz) with latest firmware
Wireless configuration:
- 2.4 Ghz for B/G
- 5 Ghz for N only
Distance from router to tablet: less than 50 ft
Issue: sporadic network connection. I got full Wi-fi signal bars, good Internet connection, but then cut-out and no connection. Back again after 10-20 seconds.
Fix(?): Changed the router configuration for the 5Ghz radio from 20/40 Mhz to 40 Mhz. This seems to tame the problem. I still have sporadic connection, but far less and connection is back again after a few seconds.
Click to expand...
Click to collapse
I have a TP link single band N router configured for b/g/n. Both my shield portable and shield tablet have issues with wifi. My nexus 7 and my moto g are perfectly fine on it.
I think in my case I've narrowed it down to the router, though. I have a second router upstairs, also tp link single band N (different model). It is configured in bridge mode for the main router. Both shield devices are perfectly fine when connected to it. Unfortunately it only serves a small portion of my house and is much slower over all.
A robust wifi area will hide most any weak wifi. Catch is most areas are not robust.
rushless said:
A robust wifi area will hide most any weak wifi. Catch is most areas are not robust.
Click to expand...
Click to collapse
What do you mean by robust? Not crowded?
Strong signal with minimal set up conflicts.
lanwarrior said:
Some people have no problem, while others like myself have issue. So let's figure out if this is a router config issue, since most Wifi problem with Android have to do with the router itself. I'll start off with mine.
Tablet date of purchase: September 12th
Router: ASUS RT-N66U dual-band (2.4 & 5 Ghz) with latest firmware
Wireless configuration:
- 2.4 Ghz for B/G
- 5 Ghz for N only
Distance from router to tablet: less than 50 ft
Issue: sporadic network connection. I got full Wi-fi signal bars, good Internet connection, but then cut-out and no connection. Back again after 10-20 seconds.
Fix(?): Changed the router configuration for the 5Ghz radio from 20/40 Mhz to 40 Mhz. This seems to tame the problem. I still have sporadic connection, but far less and connection is back again after a few seconds.
Click to expand...
Click to collapse
I'm using a similar setup, but an ASUS RT-AC66U instead of the N66. A frequencies are mixed-mode, and my 5GHz is 20/40Mhz. I can pull a consistent 20 Mbps down usually, without any issues. 50 Mbps down if I'm the only active network user at the time.
Wifi signal is usually at 2 bars, but I'm getting the same signal level out of the Shield Portable, my Nexus 5, and Nexus 7 on my 5Ghz net. My 2.4Ghz net is usually always full strength.
Kirotan said:
I'm using a similar setup, but an ASUS RT-AC66U instead of the N66. A frequencies are mixed-mode, and my 5GHz is 20/40Mhz. I can pull a consistent 20 Mbps down usually, without any issues. 50 Mbps down if I'm the only active network user at the time.
Wifi signal is usually at 2 bars, but I'm getting the same signal level out of the Shield Portable, my Nexus 5, and Nexus 7 on my 5Ghz net. My 2.4Ghz net is usually always full strength.
Click to expand...
Click to collapse
That's interesting. I wonder if my N66U is unable to maintain a stable and consistent 5Ghz connection. So you have no problem with the connection like mien?
Do you use DD-WRT or stock ASUS firmware (what version?). I may end up buying the AC66U just to test it out.
Using a virgin hub which is a netgear i belive, 2.4 is solid even two stories away from the router. 5g is still there 2 stories up but will drop out, only 1 story up it's 1-2 bars but never drops out. 5g band on router set to 38-40ish range.
Sent from my SM-N9005 using Tapatalk
funb0b said:
Using a virgin hub which is a netgear i belive, 2.4 is solid even two stories away from the router. 5g is still there 2 stories up but will drop out, only 1 story up it's 1-2 bars but never drops out. 5g band on router set to 38-40ish range.
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
Don't you need 5Ghz to play GRID? If I use 2.4Ghz, GRID will "complain" and won't start any game I selected.
lanwarrior said:
That's interesting. I wonder if my N66U is unable to maintain a stable and consistent 5Ghz connection. So you have no problem with the connection like mien?
Do you use DD-WRT or stock ASUS firmware (what version?). I may end up buying the AC66U just to test it out.
Click to expand...
Click to collapse
I have the AC66U as well and have no problems at home but have severe wifi difficulties at work or when hotspotting to my mifi which is annoying.
lanwarrior said:
Don't you need 5Ghz to play GRID? If I use 2.4Ghz, GRID will "complain" and won't start any game I selected.
Click to expand...
Click to collapse
I get full bars in the lounge which is where I would do any grid [emoji4]
lanwarrior said:
That's interesting. I wonder if my N66U is unable to maintain a stable and consistent 5Ghz connection. So you have no problem with the connection like mien?
Do you use DD-WRT or stock ASUS firmware (what version?). I may end up buying the AC66U just to test it out.
Click to expand...
Click to collapse
Stock. Whatever the latest version of firmware is too- I update when it's available.
When I had problems with my Luxor tv connecting changing channel on router from auto to one of the numbered ones fixed it, perhaps it has the bug where your device ends up getting the same IP as the router. Worth a go!
To be clear off the bad, its not the router. Every other device in the house that connects to the 5ghz band works flawlessly. This is a brand new international phone being use with AT&T in the US, calls and texts function fine. Phone is fully updated and so is the router.
Wifi however is only picks up 2.4ghz bands. Not 5ghz.
Wifi analyzers pick up 2.4ghz but when switching to 5ghz I get a messages stating my phone does not support 5ghz. Anyone else with this issue?
@aq3e No. It doesn't have 5GHz.
2.4GHz has better penetration through walls anyway.
5GHz is really only good if you're in the same room.
physwizz said:
@aq3e No. It doesn't have 5GHz.
2.4GHz has better penetration through walls anyway.
5GHz is really only good if you're in the same room.
Click to expand...
Click to collapse
The phone does 5GHz as mentioned on samsungs website : 802.11 a/b/g/n/ac 2.4+5GHz
Snekxs said:
The phone does 5GHz as mentioned on samsungs website : 802.11 a/b/g/n/ac 2.4+5GHz
Click to expand...
Click to collapse
I have dual band and can only see 2.4
Might be different in other countries.
Australia had only 2.4 as shown here.
Connectivity
ANT+
No
USB Interface
USB Type-C
USB Version
USB 2.0
Location Technology
GPS, Glonass, Beidou
Earjack
3.5mm Stereo
MHL
No
Wi-Fi
802.11 b/g/n 2.4GHz
Wi-Fi Direct
Yes
Bluetooth Version
Bluetooth v5.0 (LE up to 2 Mbps)
NFC
Yes
https://www.samsung.com/au/smartpho...-Q3bFagLE-84I8pWNocaAq5vEALw_wcB&gclsrc=aw.ds
I also dont have 5ghz and dont have the advacned wifi option to change bands... Why this model suck this much? Probably a OS stupid limitation...
rophiroth said:
I also dont have 5ghz and dont have the advacned wifi option to change bands... Why this model suck this much? Probably a OS stupid limitation...
Click to expand...
Click to collapse
5ghz is only good if you're in the same room
The A20 does support dual band, but it's disabled. I tried to enable it by replacing the mx140_wlan.hcf file located at /vendor/etc/wifi/ with the one from the A30 and it worked, but there's a problem.
For some reason the signal range is terrible, to detect a 5 GHz network the phone needs to be next to the router, if it gets some centimeters away the signal drops at the point where the network is not detected anymore.
physwizz said:
5ghz is only good if you're in the same room
Click to expand...
Click to collapse
5ghz wifi is certainly not only good in the same room, check online heatmaps of 2.4 vs 5ghz to compare, it's not a huge difference. Given how much less interference you will get on the 5ghz it often works a lot better than 2.4ghz even at longer ranges. Fix peoples internet for a living and I've seen thousands of peoples speeds double or even triple from changing to 5ghz even when router is on the first floor and they use it on the second.
FrankdonkeybrainReynolds said:
5ghz wifi is certainly not only good in the same room, check online heatmaps of 2.4 vs 5ghz to compare, it's not a huge difference. Given how much less interference you will get on the 5ghz it often works a lot better than 2.4ghz even at longer ranges. Fix peoples internet for a living and I've seen thousands of peoples speeds double or even triple from changing to 5ghz even when router is on the first floor and they use it on the second.
Click to expand...
Click to collapse
Read the article here.
It shows that 5ghz suffers from greater attenuation rates than 2.4
2.4 GHz vs. 5 GHz WiFi
Learn about when to use 2.4 GHz vs. 5 GHz WiFi with CenturyLink. The difference between these frequencies can affect your speed.
www.centurylink.com
physwizz said:
Read the article here.
It shows that 5ghz suffers from greater attenuation rates than 2.4
2.4 GHz vs. 5 GHz WiFi
Learn about when to use 2.4 GHz vs. 5 GHz WiFi with CenturyLink. The difference between these frequencies can affect your speed.
www.centurylink.com
Click to expand...
Click to collapse
(I know this doesn't help much with the OP's question but to dispel hearsay I felt it needed to be said.)
I know you don't know me, but I said I resolve peoples internet problems for a living both on supplier and consumer side and have tested this with thousands of customers but you trust a random article with very little info more and don't even bother to look at heat maps? This article has been made by someone who read a blurb about wifi, but they did get one thing right...
"A lot of electronic devices and appliances use the 2.4 GHz frequency, including microwaves, baby monitors, and garage door openers. If you have many of these in your home, or if you live in apartments or condos surrounded by other people, that 2.4 GHz band is likely to be congested, which can damage speed and signal quality."
That list is very short, it also includes lots of computer peripherals, security cameras, smart home devices, walkie talkies, radios, remote controls, wireless handsets (landlines, not mobiles) basically every wireless device you can think of uses 2.4ghz and even your microwave! all these devices on a long range signal means your neighbours devices also overlap to combine together to make the 2.4ghz band for most consumers a disaster for anything requiring more than slow speeds. This goes without even mentioning that the 2.4 ghz band only has 13 channels (3 none overlapping) to spread every wifi device out on to stop interference, in most residential are this is simply not enough. In many cases this is so bad that even next to the router people can lose 80 - 90% of their speeds or have so much interference that even loading webpages takes a long time due to the amount of data being lost.
Like I said before, even if the 5ghz DOES have shorter range, it is not so short that you have to be in the same room, what would be the point? That is a something people assume because it's a "shorter range signal" but it's not that short! the 5ghz is usually faster due to it's naturally higher data rates and more consistent due to the lack of interference from intermittent signals. Most things that interfere with 5ghz are constant and therefore it's much easier to test and know what speed you can get in other rooms away from the router, unlike the 2.4 which has the same issues with passing through anything only with a load of other issues on top too!. The 5ghz also has the advantage of having over 100 wifi channels to spread networks out on to avoid them interfering with each other, a vast upgrade to the 2.4ghz.
Here is an example of a heatmap comparing 2.4 and 5ghz but just looking at any article that goes beyond a very brief description will show you why the 2.4ghz is often so much worse than the 5ghz.
What's the Difference Between 2.4 and 5 GHz WiFi?
What do these numbers actually mean? Does it realy matter? Is one better than the other? How many questions are we going to ask in this description?
socialwifi.com
2ldr - It depends on your house and nearby networks, test both bands with different devices in different rooms and compare speeds, outside of doing more thorough testing with other apps and equipment this is the easiest and quickest way to see which will work better.
You have 2 choises use BT modem BT modem Plan A: one Device in 5GHz network one device sharing Internet from BT modem feature. +Advance use Open Garden mesh client for better Internet throught BT modem. Construction of my plan:One or two devices in 5GHz WiFi network and 3 devices creating PAN network trought Bluetooth.if Your Bluetooth version is 5.0 you can use Mesh network profile. than using Mesh network structure. Mesh Bluetooth network structure helping one device to other. but you need to know you will use 2.4GHz trought BT modem and Mesh networks.
TBM 13 said:
The A20 does support dual band, but it's disabled. I tried to enable it by replacing the mx140_wlan.hcf file located at /vendor/etc/wifi/ with the one from the A30 and it worked, but there's a problem.
For some reason the signal range is terrible, to detect a 5 GHz network the phone needs to be next to the router, if it gets some centimeters away the signal drops at the point where the network is not detected anymore.
Click to expand...
Click to collapse
I fixed this issue on crDroidAndroid-13.0-20221126-a20-v9.0 by copying both mx140_wlan.hcf and mx140.bin taken from this a30 git. Works great on my a20.
shammoi said:
I fixed this issue on crDroidAndroid-13.0-20221126-a20-v9.0 by copying both mx140_wlan.hcf and mx140.bin taken from this a30 git. Works great on my a20.
Click to expand...
Click to collapse
Interesting. What's your A20 model? I believe I also tried to do that, but I'm going to retry it.
Done it on a SM-A205W.
shammoi said:
Done it on a SM-A205W.
Click to expand...
Click to collapse
No luck. I still have the signal issue
Do it again in the following order maybe ?
1. Download both mx140_wlan.hcf and mx140.bin from the git I gave you above.
2. Turn your wifi off.
3. Reach /vendor/etc/wifi folder using your favorite file browser ( Mine is Mixplorer ).
4. Overwrite both files.
5. Reboot your device.
6. Turn Wifi back on.
7. Do a Wifi speed test ( Wi-Fi Sweetspots app for me ).
shammoi said:
Do it again in the following order maybe ?
1. Download both mx140_wlan.hcf and mx140.bin from the git I gave you above.
2. Turn your wifi off.
3. Reach /vendor/etc/wifi folder using your favorite file browser ( Mine is Mixplorer ).
4. Overwrite both files.
5. Reboot your device.
6. Turn Wifi back on.
7. Do a Wifi speed test ( Wi-Fi Sweetspots app for me ).
Click to expand...
Click to collapse
I use a Magisk Module instead of directly overwriting the files, but this should make no difference. I believe it may be a hardware difference between our devices. On the schematics the 5GHz antenna seems to be marked as optional, maybe that has something to do.
I tried to put my device next to the router, and when I did it the network got detected (with bad signal tough), I could connect and the download speed oscillated between ~50-200 mbps (my network has 300 mbps). Once I moved further from it, the WiFi disconnected as the signal was lost.