Wifi not reconnecting - Nexus 4 Q&A, Help & Troubleshooting

What happened:
I am using a new Nexus 4 in various buildings on a campus (specifically, the University of Washington). For simplicity, let's assume that there are just two buildings, Building A and Building B.
There is a strong WiFi signal within both buildings, and I can connect to the WiFi network in either one. When I walk between buildings, the signal drops outside, and the phone switches to 3G networking (as expected).
Once I'm inside the other building, however, the WiFi does not always automatically reconnect. Instead, the phone will often remain on 3G mode, despite being in the presence of a strong WiFi signal.
If I restart the phone, the phone will then reconnect to the WiFi signal. Unless I do this, however, the phone will remain in 3G mode indefinitely. This drains the battery and results in high data usage with my phone plan.
Steps to reproduce the problem:
1. Connect to campus-wide WiFi.
2. Walk outside. WiFi connection will drop, and phone will switch to 3G.
3. Walk inside another building. Phone will remain in 3G mode, rather than switching back to WiFi, despite being in the presence of a strong WiFi signal.
4. Restart the phone. After rebooting, the phone will now connect to the WiFi network.
What you think the correct behavior should be:
The phone should automatically switch back to WiFi when in the presence of a suitable WiFi signal. A manual restart or manual reconnecting to the network should not be necessary.

What kernel are you using?

Jsparta26 said:
What kernel are you using?
Click to expand...
Click to collapse
stock kernel from paranoid 3.50
(molesarecoming)

Did this issue occur before you were on PA rom 3.5?
If it didn't then I think it could be the rom if it's not then it's the school's wifi. It happens to me when I'm on campus too and I found out it the school's WiFi network was getting hammered and the signal was disrupted. No clue how that any of that happened.
Sent from my Nexus 4 using Tapatalk 2

Hi, I have the same problem. Did anyone manage to solve it? I have my Nexus 4 since yestereday and it's not reconnecting to my home wifi. Previous phone HTC Incredible S didn't have this issue and since that phone my wifi settings wasn't changed. I have AirLink AP, no name router and wifi is encoded with WPA. But i don't have to restart the phone to reconnect. It's enough to turn wifi on the phone off and on in settings. But it's really annoying. Thanks for hints.
And please excuse wrong expressions, I'm from Czech republic
Edit: I have stock rom, JB 4.2.2

Related

Wierd Wifi issue

Hello all,
I have a nexus s 9020t with stock 2.3.4.
I have been in an office building that has 2 Wifi networks, one for each company.
With my PC I can see both networks, the one for the company I am visiting is a very strong signal and I can connect to it without a problem, the second company is a weak signal.
With my nexus s however, I can only see the weak Wifi, it won't even show the strong signal in the Wifi networks list (and one of the access points for it is right on top of me), I tried both with the stock Wifi setting and with Wifinder.
Other smartphones such as the iPhone have no problem in seeing both networks and connecting to the one with the strong signal.
Any idea why is that?
And do you think we will ever get a fix that boosts the phone's Wifi strengh? (or is there one?) kinda annoying having poor reception when people with iPhones etc... have a good recepotion to the same network.
I had some issues with wpa encryption and networks not showing up on my nexus. Changed the network to wep and the issue went away.
Sent from my Nexus S 4G using Tapatalk
This was an open network on which you need to login via the browser after you connect.
What ROM are you on. CM7 has many legacy wifi support built in. It would be that if you're on stock is missing proper support for certain channel/frequency (wifi is not all exactly 2.4mhz).
Also, CM7 you can set up to 14 channels that you can use.

Note 2 not automatically switching to stronger WIFI signal?

Ok this may be kind of a long post but I'll first address what I think is the issue.
My note 2 doesn't appear to be automatically switching to stronger available wifi signals unless I manually toggle the wifi off then back on again. It will then connect to the stronger signal.
The reason why this has become an issue is because I bought a Diamond WR300n wifi range extender. I'm using it as a reapter. I want to have better wifi signal in my garage where I spend a lot of time. My current wifi signal drops off pretty much near the garage when using my phone. My laptop still gets decent wifi reception when I'm in the garage though.
I went through the fairly basic setup for the extender and got it working. I confirmed this by plugging in the ethernet port from the extender directly to my laptop and its receiving a signal just fine, browsing the internet etc.
So i put this extender in my garage, it connected normally and I confirmed it was working using my laptop again. Everything appeared to be working fine. The extender has the same SSID as my main wireless router (uverse 78wireblahblah).
The issue is when I'm inside my house I'm connected to the main wireless router because this is obviously the strongest signal. When I walk out of my house the signal diminishes as I approach my garage. I can walk into my garage and my wifi signal is pretty much gone even though there is this repeater putting out a working wifi signal with the same SSID as my main router.
Weird right, one would think it would automatically switch and connect to the repeater in the garage, but it doesn't.
Now if I manually turn off wifi and turn it back on while in the garage, bam, very strong signal and I'm connected. There really is two issues though, 1. my note 2 is not automatically switching over to the stronger signal (both the repeater and main wireless router have the same SSID) in the garage and 2. sometimes it connects to that stronger signal in the garage from the repeater (only after i manually toggle wifi off and on) but the internet doesn't work. I'm actually connected to my network because I can access my "Yamaha receiver app" that lets me turn up volume etc on my receiver but I don't have internet access etc. This is usually the case but after awhile it just seems to start working and I have full internet access.
I know this is only semi phone related but I figured since alot of guys on here are very savvy with this tech stuff, maybe someone could help.
Again
1. why won't my note 2 automatically switch over to that stronger wifi signal which should be the same in the garage.
2. why does it sometimes only connect to the network but doesn't allow outside internet access.
Should I try the "wifi jumper" app that supposedly auto switches to best wifi signal (i thought our phones do this anyways)?
Not sure if this is the right place to post this so please move if need be =)
Thoughts?
Stay on what Samsung preset.
Basically I owned a nexus s, it does have automatically jump to higher signal router or access point in android 4.1+.
So basically the WiFi just jumping from my router to access point and from access point to router and I ended up getting no WiFi signal. I have to switch off my access point (extender) to get my WiFi working again...
And note 2 won't give me this problem.
Accidentally sent from my Samsung Galaxy Note 2
If you'd ask me, just buy wifi jumper, you won't regret it!
It works perfectly fine with my 4 routers, all with different SSID. It's nice to have the best signal available wherever you are in the house. Wifi jumper gives me the best results I have had since trying a few different apps like it. The owner just finished rewriting the code for connecting to different routers with same SSID, so it should be the perfect solution in your situation!
And no, I'm not affiliated with it in any way, just a happy user :thumbup:
Edit: oops, old thread
thegipper said:
Ok this may be kind of a long post but I'll first address what I think is the issue.
My note 2 doesn't appear to be automatically switching to stronger available wifi signals unless I manually toggle the wifi off then back on again. It will then connect to the stronger signal.
The reason why this has become an issue is because I bought a Diamond WR300n wifi range extender. I'm using it as a reapter. I want to have better wifi signal in my garage where I spend a lot of time. My current wifi signal drops off pretty much near the garage when using my phone. My laptop still gets decent wifi reception when I'm in the garage though.
I went through the fairly basic setup for the extender and got it working. I confirmed this by plugging in the ethernet port from the extender directly to my laptop and its receiving a signal just fine, browsing the internet etc.
So i put this extender in my garage, it connected normally and I confirmed it was working using my laptop again. Everything appeared to be working fine. The extender has the same SSID as my main wireless router (uverse 78wireblahblah).
The issue is when I'm inside my house I'm connected to the main wireless router because this is obviously the strongest signal. When I walk out of my house the signal diminishes as I approach my garage. I can walk into my garage and my wifi signal is pretty much gone even though there is this repeater putting out a working wifi signal with the same SSID as my main router.
Weird right, one would think it would automatically switch and connect to the repeater in the garage, but it doesn't.
Now if I manually turn off wifi and turn it back on while in the garage, bam, very strong signal and I'm connected. There really is two issues though, 1. my note 2 is not automatically switching over to the stronger signal (both the repeater and main wireless router have the same SSID) in the garage and 2. sometimes it connects to that stronger signal in the garage from the repeater (only after i manually toggle wifi off and on) but the internet doesn't work. I'm actually connected to my network because I can access my "Yamaha receiver app" that lets me turn up volume etc on my receiver but I don't have internet access etc. This is usually the case but after awhile it just seems to start working and I have full internet access.
I know this is only semi phone related but I figured since alot of guys on here are very savvy with this tech stuff, maybe someone could help.
Again
1. why won't my note 2 automatically switch over to that stronger wifi signal which should be the same in the garage.
2. why does it sometimes only connect to the network but doesn't allow outside internet access.
Should I try the "wifi jumper" app that supposedly auto switches to best wifi signal (i thought our phones do this anyways)?
Not sure if this is the right place to post this so please move if need be =)
Thoughts?
Click to expand...
Click to collapse
wifi jumper is a good idea
luega said:
wifi jumper is a good idea
Click to expand...
Click to collapse
Yeah, Wifi Jumper is probably the way to go. In an ideal world, the WiFi stack would roam properly in all cases, but sometimes you're just not quite far enough for it to roam. This is even an issue with the PC also, but most manufacturers allow you to configure the roaming behavior of the driver to your tastes (max range or max speed).

will android switch to a better wifi if available?

Heyho, i currently have access to my wifi as well as to my neighbors network as my wifi gets weak while i am in the garden. I feel like android isnt awitching to my neighbors wifi automatically. Only when my wifi is completely gone, android will look for a new one.
I thought about making a task with tasker which looks for another wifi as soon as the current wifi strength goes below 25%.
Or is/should android do that aleady on its own?
Thanks
In wifi -> Advanced settings there's an option to avoid poor connection. I have no idea what it actually does, but give it a try.
I did the test with my router, which supports 2 frequencies.
Assuming both networks are saved in the phone, it connect automatically to the one with better signal or look for an alternative if signal is lost.
Thats what I mean, it will connect to the other WiFi if the connection is lost. But if the connection is crippled (bad) enough to not handle a music stream, but still "availabe" it will not switch to the other WiFi eventhough that other WiFi has 100% signal strength ?
I activated the "use wlan only if good strength available".. lets see how this works
I have multiple APs in my house and the only way I've ever got it to switch is by toggling wifi off and on (or loosing the first signal completely). This is an Android issue IINM, my GS2 and my N4 both have this issue.
I tried the "do not use weak WiFi".. didnt work.
zakazak said:
I tried the "do not use weak WiFi".. didnt work.
Click to expand...
Click to collapse
It has never worked for me either. Didn't work on my GSM GNex or with the N4.
I think it's how most WiFi clients work, otherwise if you were in the middle of 2 equal signals, it would spend more time disconnecting and reconnecting creating a DOS attack on the 2 AP's and leaving you with no data.
As for 2 home wireless routers, use the same SSID and authentication settings for both, and put one on channel 1 and the other on channel 11.
Make one a AP only (no router, no firewall, no dhcp server) and connect it to a client wired port on the first one. You can roam between them like people in large offices do.
or I try to make a tasker profile
if wifi strenght below 20% and another wifi is available with more than 30%, connect to that one.. then wait 5 minutes ?

[Q] wifi best connection problem

When I'm at work and moving from one location to another, my S4 does not seem to automatically switch to the strongest wi-fi signal. It seems to "hold on" to whatever router it is connected to until it finally loses the signal completely. Only then will it re-connect to a stronger signal. I can manually work around this by turning the wifi off and on but this is a bit annoying... Does anyone else have this problem?
As an aside, I've not been able to disconnect during sleep by switching the sleep policy to "keep wifi on during sleep only when plugged in". Does this work for anyone?
Si345 said:
When I'm at work and moving from one location to another, my S4 does not seem to automatically switch to the strongest wi-fi signal. It seems to "hold on" to whatever router it is connected to until it finally loses the signal completely. Only then will it re-connect to a stronger signal. I can manually work around this by turning the wifi off and on but this is a bit annoying... Does anyone else have this problem?
As an aside, I've not been able to disconnect during sleep by switching the sleep policy to "keep wifi on during sleep only when plugged in". Does this work for anyone?
Click to expand...
Click to collapse
As to your first point, that has been true of all my wifi devices (iPad, phones, laptops, etc.) I think that is by design because you might find your device constantly switching sources when competing wifi signals have similar strength or if the signals are varying in strength due to local conditions.
speedlever said:
As to your first point, that has been true of all my wifi devices (iPad, phones, laptops, etc.) I think that is by design because you might find your device constantly switching sources when competing wifi signals have similar strength or if the signals are varying in strength due to local conditions.
Click to expand...
Click to collapse
Hmm, thanks. I never noticed this issue with my old S2 strangely. Perhaps it's because the S2 lost a weak wifi signal whilst the S4 has a slightly stronger lock and hangs onto it for longer. It's just very frustrating because so often my phone seems to be hanging on to such a weak signal I can't get any data through even though a strong wifi signal is available and a quick switch on/off of the wifi solves it. Anyway, I can live with it.
Anyone have any insight into my second question?

Wifi network "disabled"

This may just be a problem with Android in general because I noticed this on my Nexus 5x.
So if I'm just slightly out of the room of my router, I get my wifi randomly turning off. Sometimes on 3/4 bars it will say "disabled" and refuse to connect without me manually connecting. I don't want to use data at all, but I can't get my phone to keep the connection. My wifi signal isn't bad, and I can get it with my laptop across the street.
Any way to stop it from shutting off my wifi connection or "disabling" my router?

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