LG V30 on WiFi causes DSL problems

Setup a new DSL residential modem yesterday, and was getting 512Kbps down with 70ms and 0% dropped.  Connected 2 smart phones and still working great.  The 3rd phone is a LG V30, and when it connects the DSL drops 35%+ packets and has 3000ms latency.  As soon as I disconnect the wireless at that phone everything is fine again.  I can repeat this with 100% confidence.  On the LG V30, I installed Norton Mobile security and scanned the apps = No problems found.  The DSL is unusable for viewing websites or downloads while the LG V30 is connected.

What is the best way to determine the cause on the Android phone?  Do Android updates download automatically in the background when connected to WiFi?
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Jason JohanknechtIT ManagerAsked:
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Brandon LyonWeb Developer/DesignerCommented:
1. Is the DSL modem also the wifi router?
2. Is the router dropping packets with your ISP or are the wifi devices dropping packets while trying to reach the router?
3. Does the distance of the devices from the wifi router impact performance? If the V30 is close and the other devices are far then it could cause interference.

I suspect that the V30 has a strong enough signal to cause interference on the radio frequencies that the other devices are using.
Jason JohanknechtIT ManagerAuthor Commented:
1. Yes (Centurylink provided)
2. If I hardwire a computer to the router, I drop packets (higher % on wireless).
3. All devices were within 5' of router during testing.  The other 2 smart phones are brand new Galaxy 9.
Brandon LyonWeb Developer/DesignerCommented:
Could it be related to the number of devices connected or is just solely because of the V30? Try removing a few devices from the network to see what happens. Routers like computers only have a limited amount of resources which might be getting used up. It seems unlikely that a phone would be using that many resources but it could be the tipping point.
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Jason JohanknechtIT ManagerAuthor Commented:
If I remove all devices except the LG, all I can see is a lot of activity on the router for wireless and internet.
If I have all other devices connected, but not doing anything, the activity on the router is a blinking light on occasion, but not nonstop rapid fire blinking.

If someone has a recommendation for apps on the Android phone to monitor it, that might shed some light on things.  The LG doesn't appear to be downloading from the play store or any Android update.
Brandon LyonWeb Developer/DesignerCommented:
Network Connections is a good app for monitoring inbound and outbound network connections on an Android device.

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Jason JohanknechtIT ManagerAuthor Commented:
Have yet to determine the cause of this problem, but this app should help in the future.
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