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Problem #1: Galaxy S6 Wi-Fi authentication error
Hi. i have a problem with my Samsung Galaxy S6 smartphone connecting to Wi-Fi — Wi-Fi Authentication Error.
I’ve tried everything I’ve found on internet including restoring factory setting and it still doesn’t want to connect to Wi-Fi. My laptop can connect without any problems and my S6 has been connected to this Wi-fi for like 2 weeks and suddenly just now it can’t.
Surprisingly, one of the solutions I’ve found was to type a wrong password and when I did that it doesn’t say it’s wrong password (I’ve put some random letters) i have all the time: scanning, connecting, scanning, connecting…but there is no connection whatsoever. I don’t have an access to the router so is there any way to fix that? Thanks. — Andrzej
Solution: Hi Andrzej. Wi-Fi authentication error is more of a network problem than a phone issue. If your phone was previously connected to this Wi-Fi and nothing was changed on the device before the error, the cause of the problem should lie on the router itself. This doesn’t not necessarily mean that the router is bad. Rather, some changes must have been implemented to change how it allows devices to connect to it and to the internet. For example, the router administrator may have left the same Wi-Fi password but now limits what devices are allowed to actually connect via MAC filtering. Other similar restrictions can give the appearance that a smartphone is still connected to the network although it no longer has access to the internet.
A general rule of thumb in cases like this is ensure that the network is working first before troubleshooting device or phone. If you don’t have access to the router, make sure to let the network administrator know about the situation. Most home routers need to be rebooted from time to time to clear up possible glitches after a network reconfiguration as well. Make sure that this is done. Keep in mind that there might not be any issue on your phone at all. The problem might be purely network in nature so focus your effort in making sure that your device has the right to connect to the router and to the internet first.
To verify if your phone’s Wi-Fi radio is still functional, simply try to connect to another Wi-Fi network.
Problem #2: Galaxy S6 Wi-Fi connection keeps dropping
Hi. I have an issue with my S6. My Wi-Fi connects fine with excellent signal strength. if i go on to the browser it often works. but not always. But doesn’t work with any downloaded app at all. As i live in a rural area i rely on Wi-Fi.
i have factory reset my phone and disconnected and reconnected the Wi-Fi, tried everything. Updated Google Play Services and still no luck. Would you have any idea what it might be? The Wi-Fi connects to every other device in our house so it can’t be that.
Thanks. — Kate
Solution: Hi Kate. Wi-Fi is supposed to be more reliable than mobile data connection although this “reliability” still depends on the quality and type of internet service you have. There are a number of factors to consider when dealing with an issue such as yours so we have to go through each one briefly.
First, just like what we told Andrzej, you must ensure that there are no network restrictions in your Wi-Fi network. An administrator have several options to limit how devices may be allowed to use the internet when connected to the network. By default, a router allows unlimited access to the internet for all devices but if there’s someone else managing your Wi-Fi network at home (partner, parent, kid), there’s a chance that a restriction has been put in place. For example, a parent can disable his or her child’s internet access during school days only, or set a certain limit for internet access during night time. Router configurations vary from one device to another. Make sure to talk to the Wi-Fi administrator in your house about the situation.
The second thing to consider is to ensure that the phone works perfectly when connected to Wi-Fi. Try to connect to another Wi-Fi and observe if your installed apps work as expected.
Assuming that there are no restrictions on your Wi-Fi and it is working (since other devices are connecting to it without problems), start troubleshooting your phone. Start by booting it in safe mode. Here’s how:
Press and hold the Volume Down and Power keys for 20 to 30 seconds.
Once you see the Samsung logo, release the Power key immediately but continue pressing the Volume Down key.
Your phone should continue booting up and you will be prompted to unlock your phone as usual.
You will know if the phone successfully booted in safe mode if the text “Safe mode” is displayed at the lower-left corner of the screen.
Once the phone has restarted in safe mode, leave it that way for several hours. Try to go online as long as you can via a browser and observe how the connection works. If the issue fails to occur, you have yourself an app issue at hand. This means that one of your apps is the reason why internet access on your device is spotty. Make sure to remove apps until you have eliminated the culprit.
Another potential solution to your problem is by refreshing the system cache. To do that, just follow these steps:
Turn off the device.
Press and hold the following three buttons at the same time: Volume Up key, Home key, and Power key.
When the phone vibrates, release the Power key but continue to press and hold the Volume Up key and the Home key.
When the Android System Recovery screen appears, release the Volume Up and Home keys.
Press the Volume Down key to highlight ‘wipe cache partition.’
Press the Power key to select.
When the wipe cache partition is complete, ‘Reboot system now’ is highlighted.
Press the Power key to restart the device.
Finally, if nothing appears to change after doing all the things above, make sure to do a factory reset. This procedure will wipe the primary storage of your phone and restore the firmware to its original settings.
From the Home screen, tap the Apps icon.
Find and tap the Settings icon.
Under the ‘Personal’ section, find and tap Backup and reset.
Tap Factory data reset.
Touch Reset device to proceed with the reset.
Depending on the security lock you used, enter the PIN or password.
Touch Delete all to confirm your action.
Problem #3: Galaxy S6 cannot connect to the internet via mobile data
Bought in the USA in March 2015. Have been using in the UK, albeit not to its full extent, i.e. no MMS! I put in my UK T-Mobile (EE) SIM and have been able to use the phone for most of the things I need. However, in the last 2-3 days, I have been unable to access the internet for Google, Emails etc., it just stopped. Nobody at T-Mobile shops knows what the problem is. Wi-Fi access is perfectly OK however.
Cannot understand why this has happened.
It still has some of the Verizon apps installed, as no one over here can figure out how to de-brand the phone completely! — Cbrown
Solution: Hi Cbrown. The phone will continue to keep the Verizon apps unless you flash another ROM to it. If you are not amenable to rooting, simply leave the phone as it is.
Fixing the internet problem is a totally different matter though. Because the phone fails to connect to the internet only when on mobile data, make sure that your account is activated and there are no billing issues or restrictions behind.
If there are no account- or billing-related problems, the next step involves troubleshooting your phone. Try to follow our recommendations in this post to do this.
If the issue continues, try to contact your carrier’s technical support team so they can verify if your network configuration is set correctly. You can also try to use another SIM card to see if the current SIM is defective.
Problem #4: Galaxy S6 data apps won’t work both in Wi-Fi and mobile data
Hello. I was reading your forums on Galaxy S6 problems. I also have a problem that was not listed. My Galaxy has trouble using data apps such as Facebook or Tinder or pof or Ifunny. Pretty much all apps that require data it has trouble with. It won’t load anything and yet I’ll have full service. If I restart the phone or put it in and out of airplane mode, it fixes the issue for a short time. The phone will display full data service or Wi-Fi connection and yet will still struggle.
I’ve factory reset the phone multiple times and have even gotten a new SIM. None of which solves the problem. It happens all throughout the day at random. Sometimes it will go a day without any problems. Just this last week it started having problems sending SMS messages. How can I resolve this problem? Will the new android update that is soon to be released fix these issues? Please contact me as soon as you can. Thank you for your time. — Dalton
Solution: Hi Dalton. Most connectivity-related cases like the ones you have (inconsistent mobile data and Wi-Fi connection) is due to a problem app. Kindly do another round of factory reset, don’t install any app for a day or two, and observe how the phone behaves when connected to the internet. It is important the you don’t install anything throughout the observation period.
If nothing changes even if the phone is clean from apps, consider getting a replacement phone as the issue may be something deeper that we can’t identify or solve.
On the other hand, if the issue appears non-existent after a factory reset (and without any third party apps of course), then that’s a confirmation of our hunch. You have to pick what app to install, making to load only trusted ones. If you can’t figure out which app may be to blame, try to install apps one by one and observe how the phone behaves after every installation.
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