Galaxy S7 can’t connect to some wifi networks, keeps saying site is insecure, other issues

Got any wifi or mobile data problems in your #GalaxyS7? This article may of help. In this troubleshooting episode, we bring you three more connectivity issues reported for the Galaxy S7. We know how frustrating it can be to be unable to connect to the internet using a smartphone so we hope this post will be of help.

If you are looking for solutions to your own #Android issue, you can contact us by using the link provided at the bottom of this page.

When describing your issue, please be as detailed as possible so we can easily pinpoint a relevant solution. If you can, kindly include the exact error messages you are getting to give us an idea where to start. If you have already tried some troubleshooting steps before emailing us, make sure to mention them so we can skip them in our answers.

Below are specific topics we’re bringing for you today:

Problem 1: Galaxy S7 can’t connect to some wifi networks, keeps saying site is insecure

I’ve had trouble recently connecting to the WiFi at some stores where I used to be able to. It basically tells me the site is insecure and won’t let me continue. One place is Lowes and another is Martin’s, a grocery store. I’ve tried forgetting the network and trying again, but it doesn’t help. I’m a merchandiser in those stores, among others, and WiFi is useful. I have no problem on Target wifi, if that makes a difference. Suggestions? — A2kelleywv

Solution: Hi A2kelleywv. If you’re a regular in those stores you’re having problems with, then you should try the troubleshooting steps below to fix it.

Restart the phone. This simple troubleshooting step sometimes work wonders for unexplained issues. Clearly, your phone’s wifi is working since it can connect to another wifi network without problems. If you’re lucky enough, restarting your phone before attempting to connect to any of these networks may work.

Clear the cache partition. Another good, but non-drastic troubleshooting step that can be tried for this case is refreshing the system cache. Android uses the system cache to load apps quickly and sometimes, strange problems or bugs are eliminated by wiping the cache partition where the system cache is stored. There may not be a direct and logical explanation why some issues go away after wiping the cache partition including the one you have right now but we say it’s worth spending a few moments of your troubleshooting time. Here’s how it’s done:

  1. Turn off your Samsung Galaxy S7.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  4. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  5. Using the Volume Down key, navigate through the options and highlight ‘wipe cache partition.’
  6. Once highlighted, you may press the Power key to select it.
  7. Now highlight the option ‘Yes’ using the Volume Down key and press the Power button to select it.
  8. Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  9. The phone will now reboot longer than usual.

Use another browser. Some wifi networks require that you enter network credentials or captcha-like codes to authenticate. If you’ve been using the same browser to do so, try to use a different one such as Mozilla Firefox for Android or Google Chrome.

Turn off Smart network switch. Sometimes, Android may get confused when to use wifi and mobile data if Smart network switch feature is enabled. Consider turning this feature off before attempting to connect to the two problematic wifi networks to see if there’s any difference. If you did not enable it in the first place, just ignore this suggestion.

To check Smart network switch, you can do the following:

  1. Pull down the notification bar.
  2. Press and hold the wifi icon.
  3. Tap ADVANCED.
  4. Slide the Smart network switch to the left to turn it off.

Let wifi remain on during sleep. Your Galaxy S7 has a setting that allows wifi to remain on even if wifi signal is weak or intermittent. To enable this feature, kindly do the following:

  1. Pull down the notification bar.
  2. Press and hold the wifi icon.
  3. Tap ADVANCED.
  4. Tap Keep Wi-Fi on during sleep.
  5. Tap Always.

Talk to wifi administrator. Because you’re only having trouble connecting to wifi for some select networks, we can’t really say it’s a phone problem. The most likely reason though may lie on how they configure their network. There are a lot of ways to restrict or limit the number of users in a network in any given time depending on the infrastructure they’re using. To get to the bottom of the problem, you must let the stores know that you can’t connect to their wifi so they can do something about it.

Problem 2: Galaxy S7 Active won’t connect to wifi at home

Hello. I have a Galaxy S7 Active from AT&T. All phone features are working except for wi-fi at home. Wi-fi connects but no internet is the message. I have checked that the Wi-Fi is working with another family member’s phone and my phone works on other networks and hot spots. I have forgotten and reinstalled my home network to no avail. Please help, i keep using all my data, and it’s getting expensive. — Frank

Solution: Hi Frank. Are you the administrator of your wifi at home? That is, do you know how to check the router settings in your computer? If you’re not, be sure to talk to the one in charge (maybe another family member who’s more tech savvy) and let him/her verify if your particular device is restricted. It’s possible that someone may have changed something causing your particular device able to connect to the local network, but not to the internet.

If you’re the only one capable of checking router settings but don’t know how to do it, contact your internet service provider (the company that provided the router and your internet service provider at home). Do not contact the company that provides mobile data in your phone!

Once you get hold of your ISP, you can either tell them to help your fix the problem, or ask them to walk you through some settings to check if you’ve restricted your device by mistake.

Of course we assume that you’ve already did the basics before contacting us but if you haven’t, be sure to restart both your phone and router. We hate to know that you’ll waste your time talking to your ISP when a simple troubleshooting would have helped.

You can also review our suggestions for A2kelleywv above.

Problem 3: Galaxy S7 mobile data stopped working, LTE not working

Galaxy S7 on Sky Mobile was working perfectly, then stopped showing any LTE indication above the signal strength bars and I have no mobile data connection. My partner’s Doro phone is on the same Sky Mobile package consistently shows better signal strength and shows 4G/3G etc reception right next to my Galaxy that has none.

I have deleted and recreated the Sky Mobile APN (several times). I have done a factory reset on the phone, overcome the Italian language problem and set it back up from scratch. Wi-Fi internet connection is fine. I can send and receive normal phone calls and text messages but the mobile data problem persists. I am convinced all the settings are correct and, as the problem occurred without me changing anything, I can only think the phone has developed a hardware fault. Any ideas or suggestions as to how to fix it? Nigel-ph

Solution: Hi Nigel-ph. One that’s clearly missing from your mentioned troubleshooting steps above is talking to your service provider. Unlike wifi problems, mobile data issues involves another party, which is your carrier and not consulting them after having tried the basic device troubleshooting like changing the settings is a mistake. There’s only so much that an average user like you can do in this case. The most that any person can do in this circumstances is to factory reset the device, which will return all software settings, including network settings to their known, working state. If factory reset won’t make any difference at all, that’s the time that you should contact talk to your carrier. There may be an account- or network-related problem preventing mobile data from working properly. Since only your carrier’s technical support representatives can check that, it’s critical that you should not leave them in your troubleshooting.

If they’ll say that your account has no problems and mobile data is active, then that’s the time that you’ll consider a possible hardware fault. In that case, you’ll need to send the phone in to Samsung so they can fix it.

For reference, these are the steps on how to factory reset your device:

  1. Turn off your Samsung Galaxy S7.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  4. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  5. Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
  6. Once highlighted, you may press the Power key to select it.
  7. Now highlight the option Yes — delete all user data using the Volume Down key and press the Power button to select it.
  8. Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  9. The phone will now reboot longer than usual.

 


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