Galaxy Tab A 8-Inch SM-T350 Network issues

[android_freak1]

Hi everyone!

Hopefully I am posting this question to the right area. If not, please move this thread to the correct forum section where appropriate.

Recently, I bought my mother a Galaxy Tab A 8-inch device (Model Number SM-T350) and it theres an issue where the device seems to be connected to her Wifi network, but after a while, she is not able to browse the internet or use Viber. The Wifi Network shows connected. But after a specific time, when she needs to use Viber, she cannot connect to the internet even though the network is connected to her Wifi network.

Its not only Viber, but she cannot browse the internet using Firefox or the native browser.

The only way to resolve this is by turning ON/OFF the Wifi.

We tried a number of things like Setting the Sleep options to Never disconnect from Wifi, resetting the router, and so forth...
I tried updating the device but it seems like that this unit only goes up to Android 6.0..1. There is no security software that I know of installed on the device either. I checked the router settings as well and all devices going through that router are not Blacklisted. So all devices can pass or connect to the network. No MAC address filtering turned ON, it is OFF. But these settings are irrelevant to the issue in question, as the device Wifi shows status as Connected...

This is quite a "PITTY" situation as her Viber contacts cannot even call her either because of this issue.

To recap or to sum it up on the issue, is that after a while the internet does not seem to work on the device even though its connected to her Wifi network.

My mother does not have any other devices at her home.

I wonder if this is an Android bug or there is an issue with our router?

The router in question is a Cisco WRVS4400N if this helps.

Thanks

 

[B. Diddy]

When you say you reset the router, was it a reboot (i.e., unplugging the power for 10 seconds) or a full factory reset?

See this guide for some more ideas: http://forums.androidcentral.com/am...roubleshooting-wi-fi-connection-problems.html

 

[Beut]

The only solution is try to connect with different routers, like go to MacDonald or Starbucks.
If it works fine then your problem is the router. Also check the date and time, it's obvious but many people has the problem
of connecting to internet with the wrong date and time, like the default 2011 if the battery was disconnected .
Or try this Wifi fixer, download by computer then transfer to your tablet to install it.
https://forums.androidcentral.com/e...?id=org.wahtod.wififixer&hl=en&token=iZuJrmtf

 

[david nist]

what channel is the router broadcasting on? what's the wireless congestion like in her area? lots of other units near her?