Windows 10: Slow upload speed

My PC internet upload speed is limited to 5Mb/s for some reason. It is limited both on the wifi and over ethernet.I've tried both the ethernet cable and wifi and both limit my speed to 5Mb/s. The weird thing is that I have a NAS connected to the same network, and I can upload copy files to it at 70 MB/s, so it's not the problem of the cable or the wifi. On my other devices I measure much higher internet upload speed as well around 20Mb/s. I've tried booting into a safe mode with networking, but the issue is still the same.Thanks for any help.

:)

 

slow upload speed

I'm embarrassed I didn't think of plugging the ethernet into another computer. Anyway, the result is that the speed on a laptop with the same cable is 91 Mbps download, 39 Mbps upload.
A couple of other puzzles: One is that the download speed on my desktop was around 900 Mbps, which is insanely fast, but the upload speed was under .2 Mbps. Now, after going through several of these iterations of remedies, the upload speed is still extremely slow, but the download speed is now around 32 Mbps, which is about 4% of what it was. But to my surprise, with a download speed of around 30, I don't notice too much difference for what I do. Anyway, awaiting your next suggestion.

With regard to re-installing Windows 10, even with keep my files this seems to be way over the top, as it removes apps and drivers. I find that a bit terrifying.

 

slow upload speed

Hello a mlV,

Thank you for updating me with that information. I found nothing unusual on the said list.

Have you checked your other devices like phones if still getting the same download and upload speeds?

Please try to connect your computer to your phone's mobile hotspot then run a speedtest.

Please try the last suggested method in my previous response and let me know how it goes.

Kind regards,



Independent Advisor

 

Slow upload speed

I have a cable service which is supposed to provide download speed of 300 Mbps and upload speed of 20 Mbps. My PC is connected to the service providers modem via an ethernet cable. I recently had a problem with both speeds being ultra low. A technician
visited and traced the problem to a broken copper wire tip on the input cable to the modem. He cut the end off the cable and crimped a new connector on. He ran some tests presumably to check that no other faults existed, reconnected the cable to the modem
and both speeds ran within the correct ranges.

The next day I decided to run a speed test and the download speed was fine but the upload speed was very low (down to 1.9 Mbps).

being curious I disconnected the infeed cable to the modem and checked the new connection. Everything looked fine so i reconnected the cable and ran another speed test. Both speeds were back up where they should be.

The next day I ran another speed test and the upload speed was low again. This time disconnecting and reconnecting the input cable to the modem did not resolve the problem.

Sorry for being so long winded here but my technical knowledge is rather limited and I prefer not to play with things I do not understand, but my question, "should I be concerned about the slow upload speed?" It does not appear to be causing any great problem
but the technician who visited did indicate that a slow upload speed could cause other problems with the modem, such as it automatically rebooting itself. This has occurred twice since the slow upload speed came back.

Other than going back to the service provider and waiting until they can send another technician out, is there anything I can do myself to resolve the problem?