So everyday around 2:00pm local time, my internet goes from 250 mbps, to about 0.5 mbps, I’ve talked with ISP, and they said something on my network is utilizing all of the bandwidth for about an hour, at that time, almost everyday. So I narrowed it down, and installed GlassWire on the suspected PC.
Right before 2:00pm-ish, I started running speed tests, which you can see, spikes the download/upload. Around 2:00pm, you’ll see only the red (upload) spikes, as my upload speed is unaffected. My download speeds however are non-existent, but nothing on the PC was downloading according to GlassWire, clearly, the download section is miniscule, despite massive amounts of bandwidth being utilized. I powered the PC off, as the only solution to test the theory, sure enough, the second it powered down, the internet download speed was freed up, and all other devices on the network could resume normal speed tests. Powering the computer back on, did not affect anything.
I did notice Microsoft Office Click-to-run, appears to have ‘started’ right as the download speed started to plummet, but it should have been spiking the other direction if it was the culprit?
Very confused, and not sure what could be sucking up the download bandwidth in the background without GlassWire able to detect it?