Develop Bugs

[NEO] Strange wifi problem. Connects but no internet.

Hello. I have xperia neo for 1 week. It is great phone and great upgrade from my X8 but i see a strange wifi problem. My firmware is latest version - 4.0.A.2.368.
At my home phone connects fine to my wireless network and everything is stable. I do not see any disconnects, reboots or other problems. My router is linksys wrt320N and i connect at wireless N speed - 72Mbps.
When i try to connect to the wireless N network at my office the phone connects fine but i do not have internet access. I have IP assigned by the router, network is shown as connected but i do not have connectivity. I tried with 3 different browsers and with the market and nothing connects. At the same time i can connect with my laptop to the same network and i have internet. My colleagues with other phones also connect and have internet.
I tried setting static IP address on the phone but this did not help. I read that if i set static IP in router's settings assigned to the mac address of the phone this will help. Unfortunately i can not test this because i do not have access to router's settings. Also at my home i did not make such settings and everything is working fine.
Previously i have seen this problem with my X8 and the same work wifi network but it was not always present. It was present with some custom firmwares and not with others.
If you have any ideas or have seen this problem please help.

Having the same device from Globul I never had such problems for the 2 weeks I'm using it. I had some disconnects but i put the blame on my router.

if you can try changing the wifi channels

I think I've found the issue (by facing by myself)
The version neo is shippe (2.3.2) has a serious bug on AES encription.
Actually only the upgrade to 2.3.3 (no clue about upcoming 2.3.4) can fix the WPA/AES issue.
So the actual solutions are:
or change your wifi securty to WEP, updathe the phone via OTA
or use the Windows Software and update to 2.3.3.
Please note that if you use the Control Power widget it has been removed in 2.3.3

This was my problem when I had just bought my Arc.My phone couldn't surf the internet with my personal wifi network although I tried to use many browsers and also Android market. Then I reset and reinstalled my router, everything works well ^^

Ask your office IT staff to do a simple power cycle on the router and try connecting again. That may solve the problem.

[Q] WiFi connectivity issue

I have been using Note 2 N7100 running 4.1.1 for a week now but only a couple of days ago started experiencing WiFi connectivity issue at home. The problem I have is it would lose Internet connection and then disconnects from my wifi router. When I opened the wifi menu it says my router is not in range. Turned off wifi and then on again and it connected just fine. However, after a while I lose Internet connection again and then router connection as well. In addition, my PC and other mobile devices started having connection issues. So, I restart my router and everything seems to work normal again until I turn on wifi on my Note 2. The problem reoccured again until I decided to turn off wifi on my Note 2 and so far my wifi connection is stable. I did try to use static IP and for a moment it seemed to work fine yesterday but today it messed up again right after I got home and turned on wifi on my Note 2. I also reset my router to factory setting yesterday and I don't want to reset every day.
I remembered that I did a software update at work on my Note 2 two days ago but it's an update from Samsung. I forgot what the update was for. Is there any chance to undo this update just in case it caused the wifi problem but without having to root the phone?

try to add the ip and mac address of your note 2 into the router.

[TIP] Wifi connected but no internet connection!

At some points in your life, one of your Android devices connect to a wifi router, but can't connect to the internet. However, your computer, laptop or iPad will connect to that same wifi and use the internet just fine. I've looked everywhere on the internet for solutions, some of them are:
+ Turn off and on both modem and wifi router
+ Factory reset wifi router
+ Battery pull your phone, wait 30s and put it back
+ Reflash stock or custom ROM
+ Change DHCP IP setting to Static
+ Disable security (WEP, WPA) on wifi router
+ Check DNS server, gateway IP address for correctness
Fortunately, I stumbled upon this old thread last night -> http://forum.xda-developers.com/showthread.php?t=1371794
It helped fix the internet connection temporarily, turning off and on wifi on phone caused the issue to repeat.
In summary, he found out the correct MAC address for gateway was mismatched with the one on his phone. Even though the gateway IP address is correct (example: default gateway IP 192.168.1.1)
Upon further investigations, I found out my Wifi ROUTER has the same IP address with my MODEM (192.168.1.1) This IP conflict causes the phone to recognized the WIFI ROUTER's MAC address as the gateway's MAC address. This problem mostly occurs on Android phone, not computer (I'm no tech savvy so I have no idea why)
Simple fix: Go to wifi router setting page, change the IP address on wifi router to different number (other than default 192.168.1.1), and the problem should be fixed.
Please help spread the words to fellow Android lovers, I'm sure a lot of us have struggled with this problem :laugh:

I'm one guy who is desperately looking for a solution to this.
Unfortunately the solution you gave didn't work.

Hi
i have a problem with wifi. it remains connected but loses internet access randomly. i found this solution:
"In the wifi networks, select the network you want and select ‘Forget network’
Turn off the wifi
kill all the apps with your task manager
Turn on the wifi again
Connect to the network
Check the internet connectivity
If still the problem exist, switch off the phone and redo the above steps"
it solves the problem, but it happens again after some minutes. actually, i also installed an app named "wifi fixer" which does the above process automatically. when the program is active, it turns the wifi off and on every 2-3 minutes. and the phone has internet access when the program tuns the wifi on.
any idea?

Turn off wifi optimization on some android phones help.
Sent from my Nexus 7 using Tapatalk 4

(bump) By any chance, are you all using Aztech's router? I have the same problem with my Aztech router.

solution?
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Had the same problem for several months. Changed my router and everything became prefect.
Sent from my Galaxy Nexus using Tapatalk

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2 years after the last reply I am having the same problem. My wife and kids all have internet access on their phones, tablets, desktop and laptops all from the same modem router yet I am unable to use the internet on my Galaxy S2 mobile phone even though my phone says connected to Wi-Fi Network Netgear 06.
The Mac address solution provided isn't applicable to my situation as my Mac address on my mobile is different to my modem router Mac address.
Any other solution?

Phone has problems with detecting the internet connection of wifi

Hello,
my Nexus 5x has problems with detecting the internet connection of my home wifi. If I connect freshly to the wifi (by turning wifi on my phone on), internet connection is detected. But if the phone is not used for some time, the Nexus "thinks" that the wifi has no internet access and uses mobile connection instead. This only occurs with my Nexus and the wifi in my flat. I do not experience those issues with my notebook nor the phone of my girlfriend at my home wifi. Nor does my Nexus 5x show those issues with any other wifi.
Does anyone of you experience similar issues oder do you know how to get rid of my problem?
Best regards,
wewa

Similar problem happen to me on 8.1. I solved with giving the WiFi connection static IP address in the settings (long tap on WiFi SSID and choose advanced, add static IP from range of your router). After some time it fixed by itself somehow and there was no need for static IP settings.
Somehow phone didn't get the IP from DHCP I think.
Sent from my Nexus 5X using Tapatalk

Redmi 5A wifi problem.

Hi,
I am using the MIUI 11.0.2 Global stable rom for redmi 5A.
In our area electricity sometimes comes and goes. After the electrcity comes back the wifi router takes some time before it is connected to the internet. So for some time after the router starts it has wifi signal but no internet connection.
During this time if I connect my phone to the wifi, it shows "Connected,no"internet which is normal. But after sometime the router internally configs itself and thus has internet connection. But the Connected and no internet status in my phone doesn't go away.
In this situation apps in my phone like fb lite and chrome works normally, I mean can connect to internet .but apps like play store and gmail doesn't work until I disconnect and reconnect my phone to wifi.
It seems like when connecting to wifi,only for the first time android checks if internet connection is available. If internet connection is not available then it shows the status Connected,no internet. Even if the connection comes back later, the no internet status doesn't change until the device is disconnected and reconnected to wifi.
In this same situation My windows laptop works without any problem.The status changes automatically from "Connected,no internet" to "Connected" internet connection is acquired by laptop.
So my question is, Is this a bug or android just work's this way ?
Update:
To recreate this issue you can unplug the LAN cable from your router and then connect the phone to the wifi. Connected, No internet status will be shown. Now without doing anything else connect the LAN cable to the router.
In the phone, the No internet status should now change to Connected ( Works in Redmi note 5 pro ) . But for redmi 5a it never changes but I can use the internet in chrome browser or facrbook lite but google play store and youtube shows no internet until I disconnect and reconnect to the wifi.

Learn how to fix redmi 5a wifi problem in easy way
Learn how to fix redmi 5a wifi problem in easy way: Dial *#*#4636#*#*.Click on wifi information.Then click on wifi status.
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