Transfer files over lan, can't use wan

radio · 17 Dec 2012 at 19:39

I'm currently experiencing a problem where if I transfer a file over the local network, my internet connection will suffer - pings to the bbc rise from 5ms to 600, and web pages load slowly, or just timeout.

Any ideas why this is? Looking at the task manager, 100% of the network is being used, so would I need some sort of QOS?

SMN · 17 Dec 2012 at 20:00

Er.. You mean to say, if you are using your network connection to transfer lots of data concurrently, your internet connection (via said network interface) goes slowly?

radio · 17 Dec 2012 at 20:08

Yes, not just a little slowly, but slows to a crawl (minutes to load a webpage, timeouts, 600ms pings). I never remeber having this problem before when transfering lots of local data.

zipp0r · 17 Dec 2012 at 20:16

you've maxed out the lan connection, no space left for the wan to put any data over it.

radio · 17 Dec 2012 at 20:19

That's what a thought, but I'm sending the data from a gigabit nic to a gibabit router, then to a 100mbit nic.

So, I should be fine, no?

radio · 17 Dec 2012 at 20:27

I've done some tests.

Sending from one to the other, internet unusable.

However, if I grab it from the other computer, internet fully useable.

I don't get it.

busbyuk · 18 Dec 2012 at 12:46

Have you checked it's not in half duplex?

AtaRo · 18 Dec 2012 at 19:47

Try to disable flow control on all the gigabit nic.

bledd · 19 Dec 2012 at 05:58

Which router?

Tried a factory reset / firmware upgrade?

passey89 · 19 Dec 2012 at 06:23

if all that fails you've probably maxed the throughput of your router.

They can only handle so much data going through them at any time.