Regular lag spikes and slow internet on all networks

[dajaklo]

Recently I have been having difficulty getting a reliable internet connection. I know it is not the network that I am on because I have tried connecting to wi-fi at several different locations (hotels, restaurants, etc) and always have a bad connection. I can watch videos just fine on youtube, but large downloads are really inconsistent going from about 5MBps to below .2MBps and doing this in waves and I have really bad lag spikes when I am playing online games.
It is definitely a problem with my computer and not the wi-fi that I am on. Currently I have a wired connection and the same thing is happening. I have tried updating drivers and running troubleshooter, but my computer doesn't seem to think there is a problem.
There is an attached screenshot of a ping thing that I did. I don't know how helpful that will be.
I am wondering if perhaps a part in my computer is damaged or if maybe I have a virus that my anti-virus isn't detecting.
I have an ASUS X550VX and I had some problems with overheating in the past and I had to replace the RAM and hard drive

[attachment deleted by admin to conserve space]

[Mark.]

can you use Speccy and publish your specs?
Speccy available here; https://www.piriform.com/speccy/download

on the assumption it's something running in the background (AV updates, MS updates, malware etc) boot the PC into Safe Mode and try those pings again.

[dajaklo]

http://speccy.piriform.com/results/RGSEtvY3lQac6uoxHBXzcqW

I tried safe mode and there was no change.

[Mark.]

so your PING's from Safe Mode were also all over the place?

being in Safe Mode means we should be able to rule out a background process slowing you down.
(although I'd personally be removing all the tasks from Scheduler)

it's unlikely to be corruption but you can try doing sfc /scannow and chkdsk c: /r from an elevated command prompt to see if it helps.

also, your c:\ drive is getting full'ish, so another straw to clutch is space, in particular the pagefile.
try some maintenance, such as CCleaner (available here; https://www.piriform.com/ccleaner/builds), it can also help you turn off those Task Scheduler processes.

[dajaklo]

It's working. I don't know what was wrong, the scan didn't finish, but it's working.

[Mark.]

so no more lags or unreliable internet?
dare I suggest it.... it may be early days to know either way just yet.