Galaxy S7 constantly disconnects from Wi-Fi network, other issues

Samsung’s most advanced smartphone, the #GalaxyS7, has proven itself that’s it’s worthy of the Galaxy S reputation for months now. But just like any other electronic device, many users are also complaining of issues using it. Below are some of these reported problems as well as their solutions.


These are the specific topics covered in this material today:

  1. Galaxy S7 SMS keeps showing a “sending” circle
  2. Galaxy S7 constantly disconnects from Wi-Fi network
  3. Galaxy S7 stuck in Samsung logo screen
  4. Galaxy S7 crashes when opening apps like Google Maps and Camera
  5. Galaxy S7 screen turns black when watching Hulu | Update causes Galaxy S7 to factory reset itself

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, or you can install our free app from Google Play Store.

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.

Problem #1: Galaxy S7 SMS keeps showing a “sending” circle

Hello. I just upgraded my device no less than 24 hours ago at the time that I’m writing this. I first Samsung switch all my info from my so to new S7 and left. Everything was good then. When I send out my text it would have the circle next to it as if it was sending, but people would still receive it. While on my end it was still sending then eventually it would fail. It looks as if the message goes through as people respond in a timely matter but on my end I have a full convo with nothing but failed message while the other person still receive them. — Dimiris

Solution: Hi Dimiris. The first thing that you want to do here is to wipe the phone’s system cache. There are some cases that this cache gets corrupted after an update. Making sure that it’s fresh may be an easy fix. Here’s how to do it:

  • Turn off the phone.
  • Once the phone has completely shut down, press and hold Volume, Home, and Power buttons at the same time.
  • Wait until the Samsung logo appears before releasing the Power button.
  • Once the Android logo shows up, release the two other buttons.
  • Wait for the Recovery menu to appear (may take up to a minute).
  • Go to wipe cache partition option using the Volume buttons, then press Power button to confirm.
  • Wait for the device to wipe the cache partition
  • Once the cache has been deleted, Reboot system now option will then be highlighted.
  • Press Power button again to confirm the reboot.

If refreshing the system cache won’t help, the next troubleshooting step is to delete the cache and data of the messaging app you’re using.

  • Open the Settings menu.
  • Tap Apps (some versions may show Applications or Application Manager).
  • Tap the email app.
  • Tap Storage.
  • Tap Clear Cache, then Clear Data (in this order).

Keep in mind that tapping Clear Data button is a virtual equivalent of removing and reinstalling the said app. Thus, doing it means losing all your message threads.

Finally, if nothing will change even after clearing the app’s data, don’t hesitate to do a factory reset. Steps are provided below.

Problem #2:  Galaxy S7 constantly disconnects from Wi-Fi network

I have been staying at a local hotel on business for almost a month. I am using their network wi-fi. I have had no problems.

About 4-5 days ago, it started kicking me out and I would have to go back and reconnect or it would end up scanning and doing it for me. As of today, I can’t even get passed it saying it’s connecting but never does and says no connection and if by chance I get a 5 sec connection it kicks me out and then says my session has timed out.

I have contacted their customer care line twice. They had me follow their procedures and first time it almost worked all day, this time it connected me. I went on with my business, stepped away from my phone for 15mins and upon returning, I was completely kicked out, saying session expired again. I cannot get it to connect at all again.

The only thing that I can think of that I have done different was that I was on their lobby computer and it was asking me to log into my Google account. I forgot my password and went as far as making a new one, needed to text me a code to complete but I never did? On a later day I used Google, them asking for a password and I typed in my unfinished process with Google new password and I got right in. I don’t have any idea if any of that info is related or might help? Thank you for your time. — Yvonne

Solution: Hi Yvonne. The first thing that you want to do is know if the problem is on your phone, or in that hotel’s Wi-Fi network. You can do this by connecting your device to a different Wi-Fi network and observing for a few hours how it goes. If everything works fine, you must call the hotel’s technical support team and ask for assistance. There may be an on-going problem with their Wi-Fi that they’re not aware of.

On the other hand, if the issue remains even if your phone is connected to another Wi-Fi, that’s a clear indicator that the cause is in your phone. It can be a software problem, or a malfunctioning hardware. To troubleshoot your phone, you must first boot it in safe mode. This mode prevents third party apps from running. If you installed a third party application before the issue started, chances are, that app may be the reason for the trouble. Booting your S7 in safe mode will be your way of knowing if one of your third party applications is the culprit. Here’s how it’s done:

  • Press and hold the Power key.
  • As soon as you can see the ‘Samsung Galaxy S7’ on the screen, release the Power key and immediately hold the Volume Down key.
  • Continue holding the Volume Down button until the device finishes rebooting.
  • You may release it when you can see ‘Safe mode’ in the bottom left corner of the screen.
  • To go back to normal mode, simply restart the device.

Take some time to observe how Wi-Fi works while the phone is in safe mode. Let the phone run in this mode for at least 24 hours to know the difference.

Should you not notice any difference, wipe the phone clean via factory reset and observe the phone again for 24 hours. Make sure that you don’t install anything during this period. To factory reset your S7, follow these steps:

  • Turn off your phone completely.
  • Press and hold the Volume Up and the Home buttons first, and then press and hold the Power key.
  • Keep the three buttons pressed and when ‘Samsung Galaxy S7’ shows, release the Power key but continue holding the other two.
  • Once the Android logo shows, release both the Volume Up and Home buttons.
  • The notice ‘Installing system update’ will show on the screen for 30 to 60 seconds before the Android system recovery screen is shown with its options.
  • Use the Volume Down key to highlight the option ‘Yes — delete all user data’ and press the Power key to select it.
  • When the process is complete, use the Volume Down key to highlight the option ‘Reboot system now’ and hit the Power key to restart the phone.
  • The reboot may take a little longer to complete but don’t worry and wait for the device to become active.

If the issue remains, find a way to have the phone replaced or repaired as the problem is hardware-related.

Problem #3: Galaxy S7 stuck in Samsung logo screen

My phone has never been backed up and I just recently had a baby and have all my pictures that I need to recover. I took it to the Samsung recommended service location and he said the mother board is gone and I should buy a new board, but I don’t believe him. the system hangs on the Samsung logo, the logo is animated and pulses, and sometimes I can see my home screen for a brief second before it goes back to the Samsung pulsing logo. he didn’t even plug it in for any diagnostics, so it’s hard to believe him from just holding it.

I don’t want to do a factory reset because of all the pictures. contacts I can rebuild, chat history is on the other persons phone so there is a record if needed. but the picture of my little ones growth and milestones are whats important to me.

if It’s possible to give any assistance I would be greatly in your debt, and do whatever I can to thank you.

Thank you for your time reading this. Please let me know if you can help or not, as I am holding off on replacing this phone because the company I am with will want the “broken one” back before replacing it. — James

Solution: Hi James. The only potential solution that won’t involve deleting the phone’s memory in this case is wiping the cache partition. If that won’t solve anything, you either have to try factory reset or manual installation of stock firmware.

You can try to boot the phone in safe mode too, to see if that will help. If nothing changes, there’s no other available options for you.

Problem #4: Galaxy S7 crashes when opening apps like Google Maps and Camera

The device, a Samsung S7, crashes when trying to use things like Google maps and the camera. It is not consistent as sometime it will work these apps and other times it will crash in the middle. Always when selecting a button. Here is a weird part. It will not reboot unless plugged into a charger and even with that I sometimes have to repeat it. Even if the battery shows as much as 83% or higher it refuses to boot stand alone. I have cleared caches and deleted questionable apps particularly ones that I do not use.  The memory claims I have over 6 Gig free. I have cleared the cache partition and tried the soft reboot.   I am stumped and really like this phone and don’t want to upgrade.  Thanks for any assistance you can offer. — Russell

Solution: Hi Russell. Try to observe the phone both in safe mode and fresh from factory reset to know the difference. We hope it’s not a hardware issue and won’t require you to submit it for a hardware check. But just like what we tell others above, if software troubleshooting won’t work, then you must have a hardware problem at hand. Follow the steps above on how to restart your phone in safe mode and on how to do a factory reset.

Problem #5: Galaxy S7 screen turns black when watching Hulu | Update causes Galaxy S7 to factory reset itself

Since the upgrade, I was watching HULU Plus (app) on my phone. The video plays fine and then the screen goes black and the video has to be restarted from the beginning. It seems to happen randomly and happened 4 times within 10 minutes while watching Battle Bots on Hulu. I have not tried other programs like Netflix or Amazon Video yet so it may be an issue with Marshmallow and Hulu but thought I would send it in. 

One other thing to note:  A few days ago, my phone rebooted and said it was upgrading (with no input from me).  After the upgrade, it looked like it had done a factory reset (wiped all data from SD card and phone). I thought this was the Marshmallow update but it was not.  After the “upgrade,” Marshmallow was waiting to be installed, so I completed that upgrade since I would have had to reinstall apps anyway. — Shawn

Solution: Hi Shawn. In order to isolate the cause of the first issue, you must first try watching videos on other apps. You can also try wiping the affected app’s cache and data (steps provided above). If nothing will change, don’t forget to refresh the cache partition and factory reset.

Your second issue can be hard to pin down. We’ve heard of this case happening with previous Galaxy S and Note versions but there seems to be no pattern or common denominator to identify the cause. It can be a bad Android version from your carrier or a Samsung coding bug. Make sure that you let your carrier know about it so they can check with their developer team for solutions. Otherwise, the best thing that you can do is to observe how your phone behaves in the next few days. If the issue persists, consider having the device replaced.


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One Reply to “Galaxy S7 constantly disconnects from Wi-Fi network, other issues”

  1. For me the issue was at the Router. It had “WMM” enabled for Wifi, which is like a QoS for media etc. Disabling that fixed my drops for the S7.

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