NetWorx slows down both upload and download speed

I'm running NetWorx on two Dell PC's. On the laptop running Win 7 64bit I have no problems, but when I run speedtest.net on the desktop running Win XP pro 32bit, I don't get the max (100Mbps) download speed. The speed without NetWorx is 98Mbps, but with NetWorx running only 10Mbps! This is with Firefox 28.0. With Internet Explorer 8 the download speed is better, but still not more than 60Mbps with NetWorx on, 98Mbps with NetWorx off.

Is the Ignore LAN traffic option on?

Yes, it's set to ignore LAN traffic.


And if not


Thanks, but why the difference?

Hi Lars,

The answer is likely that, with the Ignore local.... turned ON, Networx has to intercept each packet and check to see if
1) it's local and thus not count it
or
2) it's not local and count it.

so doing that does take 'some' time. Quite a bit in your case apparently.

That time would be more significant the higher the connection speed, i.e. if you had only a 1.5Mbps connection, like me, the time to check would be insignificant.

You said that your router at home has SMTP, so simply monitor the router, that happens at 1 second intervals and won't impact your "fantastic, I wish I had them" speed.

J

That's right. As an alternative, I would recommend to try using NetWorx with WinPCap as it might work faster:

1. Download and install WinPCap.
2. When NetWorx starts, you should be able to choose one of your adapters prefixed with "Ignore LAN Traffic" from the drop-down list in the NetWorx settings.

In this case NetWorx would use WinPCap for intercepting traffic rather than its own driver and due to certain implementation differences this may work better.

Andrew,

Will Lars have to re-install Networx after installing WinPcap or will Networx automatically use WinPcap?

J

posted at 10:01

Just relaunch NetWorx. No reinstall is needed.

Hi Andrew,

I just had a thought about your answer, does it mean that even though I've installed the Networx driver, Networx will use WinPCap instead if it finds it on the system?

I ask because I have WinPCap v3 installed for other apps such as Wireshark and a couple of NirSoft apps (which I was just updating which triggered my question) but I was assuming that Networx used the driver that I specified at install time.

J

If you tick the Ignore LAN traffic option, NetWorx uses its own built-in driver, which is the one you have the performance issues with.

If you choose an adapter prefixed with Ignore LAN traffic from the drop-down list, NetWorx uses WinPCap.