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The story started about a month and a half ago. At random times the internet speed went down drastically, changing between 0MB/s to 75MB/s (which is my maximum).

I have called countless times to my internet provider/supplier. They claimed they supply the maximum amount I paid for. In 3 weeks we replaced about 3 different routers and the issue did not disappear.

I have heard that video games, videos and some programs on the computer can cause those issues. In my house there are 5 computers, and this issue never occured until now. I ran virus scans on every PC, checked for torrent programs, but everything was completely fine with the computers.

In one of the calls with the internet provider, one of the workers told us about a special case where his phone did the same thing we described.

My family and I started investigating more into it and we found out the LG G5 my sister owns is affecting the internet as long as it's connected to our WiFi.

The internet "slow-down" happens at random times, but it always happend when the phone was in the house and connected to the WiFi. Each time it happened as soon as we disconnected it from the WiFi the internet speed jumped straight up to 75MB/s. I can verify that it is indeed the phone and not a PC or any other device that is connected to the internet.

We have tried "factory resetting" but the issue kept occuring.

I'll list the applications and phone information down below:

Hardware Info

Model Number: LG-H850

Software Info

Android Version: 6.0.1

Android Security Patch Level: 2016-04-01

Build Number: MMB29M

Software Version: V10d-ISR-XX

Applications

Best phone ringtones

ai.type Emoji Plugin

ai.type Electric Glass Theme

ai.type Keyboard Plus

ai.type Hebrew Dictionary

Instagram

Tiny Flashlight + LED

To-do list & Agenda by Any.do

The rest of the applications came with the phone.

Now... I am desperate, very very desperate. I have been digging the internet to try and find a connection between a mere phone to the internet. This issue didn't not occur at the moment we brought the phone into the house, which makes it even harder to find a solution.

My question is: Is there any solution to fixing that internet slow-down other than throwing the phone out of the window?

Thank you in advance.

  • I would talk to LG given that this seems like a hardware-related issue. They'll definitely offer you a hardware replacement if the issue persists and that will surely fix it. Contact LG: lg.com/us/support/telephone – owlswipe Aug 16 '16 at 20:13
  • Other idea: virus on the LG G5 (try downloading Avast or Intel McAfee). It could also be on of the app's fault, try checking which app is using your WiFi by following answer here – owlswipe Aug 16 '16 at 20:15
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    EDIT: Actually, follow these instructions to see what's using the most Wifi Data. That'll be your culprit. – owlswipe Aug 16 '16 at 20:21
  • Are the computers you're testing the internet speed from also wireless, or are they wired (Ethernet) to the router? – derobert Aug 18 '16 at 17:18
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    Whay kind of router are you using? Maybe it has a web interface you can connect to and see which devices are connected to your router. Also you can see if an unauthorized device has connected. On newer routers you could possibly see the bandwidth used by each device. Please post your router's brand and model. – George D Aug 18 '16 at 21:48
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Try disabling the background apps and auto sync. This might resolve the issue

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Setting up another wireless network from your router could work. The process involves creating a network with its own password and security but which ultimately makes use of the same external connection. I have a friend who did this; 2 distinct networks running through the same router. There are numerous tutorials online.

It is possible that connecting the LG G5 to this new network could cause the problem to occur on the new network and not on your original one, as the problem is clearly not with the connection coming into your router.

protected by Community Sep 8 '17 at 15:53

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