Ping becomes very high whenever I switch on my PC?

[OliverMerry]

Basically, whenever I switch on my PC the ping rises significantly and the upload speed decreases. I have checked that nothing is downloading on my PC at the time, and I am not even running anything, just at the home screen.

On my phone I used the speedtest app, and before I switched on the PC I got my standard results, 5.4 Mbps download, 0.7 Mbps upload and 35 ping, I tested it a number of times and got the same. Then, when I switched on my PC and signed in, my results on my phone were very different, 5.4 Mbps download, 0.1 Mbps upload and 400-600 ping. Finally, when I switched my PC back off, the results were back to normal.

Does anyone have a suggestion on how I could get it back to normal? I only purchased the PC around a month ago, and it didn't used to happen, but now it does.

 

[jsmithepa]

1. Do not enable ethernet and WIFI at the same time.
2. Did you configured Internet sharing at some point for forgot about it?
3. Are you using static IP (IP crashes)?

Post a diagram how everything is hooked up.

 

[OliverMerry]

1. Do not enable ethernet and WIFI at the same time.
2. Did you configured Internet sharing at some point for forgot about it?
3. Are you using static IP (IP crashes)?

Post a diagram how everything is hooked up.

I am not using an Ethernet cable at all in my home, just a wireless tp link dongle plugged into my pc. From what I know of, I am not internet sharing and I'm not too sure on what a static IP is.

Are you asking for a diagram of how my router is hooked up or my PC?