Latency Wireless Windows 7 64 bit

I was struggling with a strange problem with openvpn on Windows 7 64 bit wireless.  Performance is very slow and my ping is very high on the openvpn from Windows XP Win7 wired connections and wireless connection.

This seems to be a problem with the Intel WiFi Link 1000 BGN wireless card.  No update firmware is available from Lenovo or Intel for the card.

Average ping latency is 30ms WinXP vpn wired as well as Win7 wired and wireless.  But going to 130ms + Win7, connection Wi - Fi!  This translates into a remote session which is like working in molasses.  Walk through code in Visual Studio on a remote Windows 7 machine when computer on a wireless connection so much lag time, it becomes unusable.  To connect remotely on a wired ethernet or Wireless N WinXP is so sensitive that sitting in front of the remote computer.

Seems that my MTU is optimal for my internet connection.  I tested and found that 1480 is the minimum size package where I can ping and return a response "packet needs to be fragmented but DF set.»  So I leave my MTU to 1500 on cable and wireless on Win7 machine.

So far I have (I think) excluded the following:

Firewall - the two windows and to the router - have turned both without effect

Antivirus - no change with it disabled

Configuration of the router - put the laptop in the DMZ and no change

MTU - tested 1500 as optimum

ThinkPad drivers and BIOS - all the latest

Everyone meet problems with this Intel 1000 wireless card?

Thank you

Jeff

ThinkPad Edge 14 with Intel 1000 BGN NIC wireless

I had a real problem with performance on several ThinkPads with Win7 wireless until I realized there is a new (or perhaps changed implementation) setting in Win7 it affecting power.

If you go to control panel-> Power Options, then click on "Change plan settings" for your current power management.

On the next screen click "change power avancΘs."

In the next screen expand 'Wireless adapter settings', then 'Power Saving Mode '.

Make sure that it is set for maximum Performance.

You do not know if this will help your particular problem but hope.

Tags: Lenovo Products

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