Santino: Hi, thank you for contacting Samsung Technical Support. How may I help you today?
Fadeel: yes hi
Santino: Hello Fadeel, please go ahead with the question.
Fadeel: ever since the new 4.3 android update on my phone, I have been having a lot of wifi connectivity issues
Fadeel: I am constantly getting "the internet connection via this wifi network is unstable"
Santino: I am sorry to know that you are facing issue on the device after updating.
Santino: I understand your concern.
Santino: I will try my best to fix the issue on the device.
Santino: Please provide me the model number of the device. Please tap on Home screen >> Apps>>settings >> about device/about phone or you can find the model number beneath the phone's battery generally starts with SGH, SCH or SPH.
Santino: Thank you for the model number.
Santino: Please provide the Baseband version of the device, From the Home screen, touch Menu > Settings > About device > Baseband version.
Santino: Thank you.
Santino: Were you facing this issue on the device before updating the firmware?
Santino: Are you facing this issue with all Wi-fi networks or particular network?
Santino: May I know the exact error message displayed while you try connecting the device to Wi-fi network?
Fadeel: it does not have trouble connecting. the problem is after it conencts it says "The internet connection via this WiFi network is unstable. "
Santino: Thank you for all the information provided.
Santino: Let us perform few troubleshooting steps on the device to isolate the issue.
Santino: Please perform the Soft Reset. This will refresh the internal circuitry on the phone. It will not erase any data.
Santino: Please follow the steps mentioned below to perform a soft reset on your Phone:
Santino: 1. Turn off the handset.
Santino: 2. Remove the battery and wait for 30 seconds.
Santino: 3. Reinsert the battery and turn ON the device.
Santino: Please keep me posted while you perform the steps above on device.
Fadeel: ok good to go
Santino: Have you performed the steps above?
Santino: Please try connecting the device to Wi-fi network and check if the issue resolved.
Fadeel: error popped up again
Santino: Sorry to know that.
Santino: Please try to add Wi-fi settings manually on the device and check for the result.
Fadeel: Ever since this update to 4.3 I've been having this issue and so have my sister. And it's not just with my router but anywhere I go. I restarted router, forgot the network and reconnected to it---got support from T-mobile and they referred me to samsung after saying it's clearly a software update issue
Santino: I understand you and appreciate your efforts to fix the issue on the device.
Santino: As you have already done with the basic troubleshooting steps and the phone still has the issues, as a last troubleshooting step, let us factory Reset on the phone to check whether the problem is with the Hardware or software of the mobile.
Santino: Before providing the steps, I would like to inform you that factory reset will erase all the data on the mobile and restore it to the factory settings.
Santino: Are you comfortable with it?\
Fadeel: Oh yes, and yes---a factory reset was done. Had to re-download every app
Fadeel: I thought a factory reset would resolve it at first after researching the issue in forums---but it didn't
Santino: I am sorry to hear that.
Santino: In this case, I recommend you contact nearest Samsung Experience Store at Best Buy to re-flash the device software to fix the issue.
Santino: You can also send the device to Samsung service, where our technician will examine the phone and fix the issue.
Fadeel: Will I have to pay for this service at the store?
Santino: No, re-flashing the device will be free of cost.
Fadeel: and if this does not work---what should I do
Santino: I am positive this should fix the issue; However, if the device is sent to service the device software will be re-flashed.
Santino: It will take 2 business days to receive the device and 5-7 business days to service the device and 2 business days to ship the device.
Fadeel: I hope so :-)
Fadeel: Well thank you. I will do this
Santino: You're welcome.
Santino: Please refer the link below to locate nearest Samsung Experience Stores available.