Speed tests = Awesome, Real life file downloads, complete underpants?

Gimpymoo · 1 Jul 2017 at 14:41

Any help on this before I reset Windows would be appreciated.

All speedtests show connection as expected with low ping, which is great.

Downloads however are another matter. Seem start Ok'ish then start staggering around like a drunk around town

THIS ONLY HAPPENS ON ONE PC ON THE NETWORK, others work as expected.

What I have done so far:

Modem has been replaced.
Replaced ethernet cable.
Replaced with shorter ethernet cable.
Swap tested with known working cable.
Uninstalled and deleted software for Intel 1217-V adapter.
Installed latest software for network adapter.
Uninstalled again and reinstalled.
Windows Firewall on/off - No difference

Any ideas please peeps?

Thank you.

bledd · 1 Jul 2017 at 15:04

Expand.

Speedtest speed?
Download rate when downloading this http://mirror.bytemark.co.uk/linuxmint/stable/18.1/linuxmint-18.1-cinnamon-64bit.iso ?
Directly connected to router?
3rd party network software installed?
Which motherboard?

Rroff · 1 Jul 2017 at 15:12

Quick google suggests some people have seen slowdowns and erratic speeds with that adapter after certain Windows 10 updates for no apparent rhyme or reason so even a complete OS reinstall it might be tripping due to a specific patch/update once applied on reinstall if you are using Windows 10.

Have you tried connecting it to a different port on the switch?

Its possible the NIC hardware itself is failing often erratic speeds are a sign of that if there is no other obvious explanation.

Gimpymoo · 1 Jul 2017 at 15:23

bledd said:
Expand

Speedtest speed = 320Mbps
ISO File = Average - 17.8 MB/s - 142.4 Mbit
Virgin Media - Superhub 2, now Superhub 3, same problem. Direct ethernet to Superhub.
No other network software.
GIGABYTE Z87X-UD4H-CF

acake · 1 Jul 2017 at 15:39

Virgin Media go check there forums for oversubscription in your area

Rainmaker · 1 Jul 2017 at 16:28

acake said:
Virgin Media go check there forums for oversubscription in your area

Oversubscription wouldn't cause only one of his PCs to have the speed issue...

@Gimpymoo try booting a Linux live USB and run the tests again from that. Manjaro, Debian et al. are fast and easy. Other distros can be slower due to being app-heavy and a bit too loaded ('noob friendly'). At least then you can determine whether it's a Windows issue or a hardware issue. If it turns out to be a driver issue on Win10 as suggested above, you could grab a second hand Intel Pro 1000 MT/GT/PT card from an auction site and use that instead? Just an idea.

Gimpymoo · 9 Jul 2017 at 12:00

This has been solved.

I had a HDD which failed ages ago, no longer detects as a drive but me being Lazy, never got round to disconnecting it.

I disabled the SATA port in the UEFI (Too lazy to figure out which drive it is in the case) and now all is working OK.

I suppose the duff drive drive was sending duff info to the SATA controller causing some issues?

I did also reinstall NIC drivers again and reset Windows firewall but am certain it was "removing" the duff drive which fixed it.

Gimpymoo · 5 Aug 2017 at 15:17

The problem came back...

So far, disabling "energy efficient internet" has solved the problem.