Samsung I7500 :: Wifi Connection Lost After Screen Lock And Can't Regain Connection After Unlock
Sep 7, 2009
If my screen locks while I have a wifi connection, then the connection is lost when I unlock the phone.First, is this perhaps deliberate, to save power? Also, either way, when I unlock the screen and go into wifi settings, I see that the phone is trying to make a wifi connection, but it never succeeds, even though it's my home network and I'm in the same room as the router. It just states 'Obtaining address.
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Nov 21, 2010
When my data connection (3G) is lost due to lack of signal sometimes it never reconnects again, despite being in an area of high signal strength. I have 'always on' mobile internet toggled. To solve this I have to turn the phone off and on again, which is annoying.
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Mar 21, 2010
I odin JC4 in galaxy, but I use wifi. That didn't connection WiFi. Because, it cannot be IP address.
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Sep 15, 2010
Long time reader, first time poster here. How does one know if the Epic is using the wifi connection as opposed to using the 3G connection? When wifi is connected both that and the 3G connection shows at the top. So which one is in control per se? And how can it be verified?
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Nov 19, 2009
New to Eris and have set up Wifi to connect to home router (Verizon FIOS Actiontec). Successfully connected (accepted WEP) but get very weak signal and then lose connection. I've turned off "Mobile Network" but still have this problem. I am one room away from router and receive full signal on iMac and printer but only a dot under the Wifi symbol on the Eris. Exchanged a Motorola Droid (which received and held full signal -- as did my prior iPhone)) for Eris. VZW tech support clueless and immediately sent me to HTC support. While they tried (had some not very good explanations -- battery not pushing enough power) still nothing working. Any advice/help would be greatly appreciated -- this is the only downside right now.
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Apr 1, 2010
for whatever reason today we lost our internet connection at work. Now I work for an airline doing charters and today we added a second flight to each shift. So I tethered my phone for the 3g and just plugged it in at the end of the day to charge it. Needless to say it handeled 300 passengers/customers easy. Changes, bag fees, checking in and selling for a solid 8hrs today! I don't think I'll ever get another cell phone ever. Maybe a bigger SD, but phone, probably not.
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Dec 7, 2009
After reading the forums and changing settings and doing a few battery cycles, I had been getting really good battery life of at least two days on medium usage and 3 days on light with my connection not having any real issues. Then, 2 days ago I installed weatherbug and beautiful widgets. While I enjoy both, it seems like my network connection goes down fairly often now and I need to turn on wifi to check email or do anything else web related. Has anyone else lost their network connection and been able to narrow down the cause? I'm hoping it's not one of these two, but I can't imagine what else it would be.
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May 19, 2010
On my bus commute to work, using my 2.1 Samsung Moment, I pass through some areas with less than ideal connectivity. Sometimes when I'm accessing a news app, an exclamation point appears and I lose all connectivity. I usually have to restart the phone to regain connectivity. Is there any other way to regain web access other than restarting the phone?
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Dec 17, 2009
I just bought my i7500 in the excitement that it has all the features that I need (except upgrade to 2.0 OS) but it seems that GPS chip doesn't work properly. From what I understand, GPS chip enables the phone to communicate with the GPS satellites and determine the location, without the need for data plan (EDGE, HSPA, or WiFi). However, on my galaxy, I have two apps (GPS Status, GPSTest) for GPS which suppose to show my location (long, lat) but I get nothing with these apps. How come? I have enabled the 'Enable GPS Satellites' and 'Use wireless networks' (even though this shouldn't be required) in Security and Location setting and still nothing. I see the little GPS icon the status bar at the top blinking but I believe it's suppose to stay there when it actually locates itself, which its clearly not doing. I have tried in various locations where the GPS signals are pretty good so I don't think reception is a problem. I have the i7500XXII4 baseband version.
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Oct 27, 2010
I was running the JI6 2.2 with cognition beta5.5 and was attempting to update however I needed to swap kernels since the current kernel didn't verify signatures. I was using vmware on a mac and i started it but then continued to use the mac side however the computer disconnected the phone from the windows side and now it is stuck showing an image of a phone next to a computer with a triangle with a ! in it between the two. Pressing all hardware buttons does nothing but black the screen and go back to the same screen. I've taken out the battery, sim, unplugged the cord, everything. Can't get back into download mode to redo the kernal swap. It's definitely connected to a valid, and working, usb port and i am now on windows itself instead of vmware. What do I do?
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Dec 17, 2012
everytime i installed a custom ROM preferrably CM7 Apocalypse, i always lost my data connection, i dont know why this thing happen, then last time i installed CM7 Apocalypse again (changelog dated 9/7/2012 by itasoulas) i still lost Data Connection though i follow the instructions given, plus i cant receive a message even though i installed a messaging app. im tired im reflashing my phone back to Stock Rom over and over again .
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Apr 30, 2010
My mobile data connection turns off after a few minutes when the screen lock comes on. I have checked both "always on mobile data" and "mobile network" on. The data connection will stay on with the screen lock only if I have an IM logged on. I have changed my sim card and have done a factory reset....
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Jul 19, 2010
While taking apart my Galaxy I broke the copper ribbon to the lock button and now I cannot unlock the phone! Is there a hack or other way to unlock this phone? It currently has Galaxo 1.6.3.3
I can probably boot into recovery and flash any zip but currently I cannot get to the home screen as it is locked so Lock 2.0 or other Market app is not a solution.
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Sep 9, 2010
I have a Samsung i7500 (Galaxy).Originally, it had Android 1.5 installed, but I could not enter the Google Market with my google account and got this message: "Can't establish a reliable data connection to the server".I read here and across the web I should Factory-reset my phone, but it did not work.So I upgraded the firmware to Android 2.1 using this guide: How to Mustymod It worked, and now the phone had Android 2.1 installed, but I still cannot access the Google Market with my Google account. This time I did a factory-reset (Settings -> Privacy -> Factory reset) and also followed this guide to delete the provider-settings (eventually I removed the whole /data/data/com.android.providers.settings/ directory and not only that file.
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Jan 28, 2010
When I'm connected to a wireless network with my Moment and browse the internet, how do I know if I'm using the wifi connection or the regular phone's connection (3G or EVDO)?
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Mar 23, 2010
Going overseas in a few weeks mainly for sightseeing. I'm not worried about using my phone (I know it won't work on the networks there) but was wondering if the Moment would be good device to take for checking email and Internet in those spots I can get a wifi connection? Will it even work? or should i take my laptop?
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Jul 11, 2010
I connect to wifi at home. however, when the phone goes into screen safe mode, the wifi icon is not there. only after i swipe the phone to get back to the menu, then i see the wifi icon.
does it mean wifi is disabled when the phone is in screen safe mode? it appears i do not always get notification for new text when the mode is in screen safe mode. it's sporadic.
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Sep 24, 2010
I just bought a galaxy s (I9000) I connect to my home wireless gateway through the phone, enter the WPA key and it connects all fine. But then when I try to browse any webistes I get a 404 error and if I try syncing facebook or anything else I get an error saying the server could not be contacted. wireless works fine on my mum's laptop and the phone is showing up in the devices list of my router's interface.
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Jul 25, 2010
I just got my captivate a couple days ago and I am having issues connecting my phone to my WiFi at home. I successfully connected to my home WiFi when I first started my phone but now it always says "connection unsuccessful".
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Sep 26, 2010
Does anyone have any idea as to whether Froyo will address the wifi issues on the SGS?My wife's phone will not connect to any wifi hotspot unless she is virtually sitting on the router.At home it is ok as the router is in the same room, but she has tried to connect to many wifi hotspots in public places and she can never connect as the signal is so weak.Other people with iPhones, HTC etc connect with no problem, but hers will not do anything.Is this something that Froyo will address, or is it more a hardware issue with the SGS?
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Sep 25, 2010
I have the same issue with 2 separate Vibrants, actually 3 Vibrants counting the one I took back.I have problems connecting to either the market or internet across multiple browsers while WiFi is on.With both phones, it seems this problem is intermittent and across different brands of routers at different locations.
An example is when I try to enter the market.I sometimes will get to the market home page but when I try to pull up my downloads it comes back with an error message saying connection failed.Once I turn off WiFi it works perfect in 3G, or if I leave WiFi on, go back to the home page and then try just a minute later it connects without a problem.To make matters even worse, the problem persists while using apps that connect to the internet such as The Weather Channel.The problem is very intermittent.Sometimes I have no problems connecting, while other times it won't connect at all until I turn WiFi off or even reboot the phone.Both phones behave the same way.I've gotten to the point now where I just leave WiFi turned off because it's so unreliable.I know it's not the WiFi signal strength either as it is just as likely to happen with the phone a few feet away from the router's antenna as it is when it's 50 feet away.
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Sep 11, 2012
So recently I have started to have a problem with my Wi-Fi Connection on my Samsung Galaxy Blaze 4G , So I would be on the Wi-Fi fine then each time i click on a video it asks for "Complete action using" then my Wi-Fi instantly stops and the Wi-Fi icon isn't there anymore . After i clicked one of the option on complete action using, couple seconds later my internet comes back.
So problem is that each time i try to watch a video my Wi-Fi Stops when on Web. But then I can watch videos through the Youtube application.
Also Another weird thing is that after the Wi-Fi reconnects My "Use packet data" setting is auto enabled again.
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Sep 4, 2010
My wifi will turn on, but will scan for or connect to networks. Anyone had this issue and know how to resolve it?
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Jul 22, 2010
I am new to smartphones and thought that this might be good for others who are new and don't have the unlimited data plan grandfathered in to know.
This was posted in reply to another question I had had about Pandora so the credit goes to poster MeVirtually.
By default the wi-fi setting is set to go to sleep (and use cellular data instead) when the screen is off, which will most likely happen while you are streaming music as well as other things. To change it so the wi-fi never turns off, to into the phone's menu -> wireless and network -> wi-fi settings -> tap the menu button and select advanced which has an option for wi-fi sleep policy that had been defaulted to sleep "when screen turns off". There you have the option to change it to "never" or "never when plugged in".
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Jul 20, 2010
All the sudden today i just lost my 3g data connection. I actually saw the airplane symbol for a min or two as well. I toon it to sprint and they couldnt get the data connection back thy tried some kind of "activation" which didnt work then they wanted to have the phone for a day which j cjldnt do today. Now i disabled the 3g on the phone and turned it back off and on again and it said it was runnjng the activation again but this time t ran through and i turned 3g back on and the arrows show up but they never flash but i am on the pjone now posting this.
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Aug 1, 2010
I'm on 3 using froyoand cannot turn on 3g has anyone any ideas or fixes.I'm using switch pro widget which maybe causing the issue.
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Oct 29, 2010
Noticed today that when the phone is unlocked with the power/unlock button, that the screen starts off at a significantly lower brightness, but the light sensor seems to then kick in and the correct brightness is then displayed after. This happens for only a fraction of a second, but is quite jerky and immediate.Is this normal, or should the screen brightness remain one constant level from unlock? Of course, changing when it should based on lighting conditions.The same also happens when the screen is about to sleep. Once the lock button is pushed, the screen brightness almost notches down in 2 steps. First at half the brightness, or so, and then off completely. Again, not necessarily smooth, but quite jarring.Again, is this normal of other Captivates?
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Sep 26, 2010
Took my HTC Desire to Italy and since then have lost all mobile data connections - though works fine on WiFi. Switched on airplane mode for flights, and switched off data roaming to reduce overseas costs. But when switched back on to use internet couldn't get any network connection. Now back in the UK still same issue - no internet, and cannot send MMS picture messages - even when in strong 3G signal Tried all the options I can find but no joy at all.
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Mar 25, 2014
I used flash tool to try to install recovery on my Lenovo A750. I used DA_PL.bin instead of MTK_AllInOne_DA.bin as download agent.
Now when the phone is turned off, it is not recognized (no MT65xx), and I cannot use the flash tool again. Beside this the phone works fine including 'regular' USB connection. What is "download agent" and what did I do wrong?
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Feb 15, 2010
When viewing sites with a lot of Flash ads like GameFAQs I get an annoying popup telling me that I have lost the data connection and the page could not be loaded. Only the ads are not loading, but I'd like a way to ignore or fix this.
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