Ping issue - same network, 2 different laptops

[cv_promode_1]

Hey guys,
I'd like to ask if anyone has ever encountered this weird tech issue. Here's the thing:

I have two laptops. One "old" Asus with Win XP and second is sorta brand new Lenovo with Win7 x64. I am connected with both to the same wifi spot (home network). While on the old Asus I'm having usually between 10-17ms, Lenovo gives me about 60-85 in lobby and around 90-120ms ingame and motion lag, which is unplayable.

Facts:

• drivers are up to date
• When one is shut down, it won't affect the ping values on the second.
• None of those is actually downloading any warez or antivir updates etc.
• I tried to set IP and MAC priority for Lenovo on router setup and Dota TCP/UDP priority for all devices connected, wont affect ping values at all
• Shutting wifi and plugging cable instead will decrease ping value to average 60ms both ingame and lobby, which still sucks

I wonder how this is possible? Any thoughts/hints? I heard this could have something to do with Win7 using IPv6 or something but I'm really not down with networks and IP stuff.
Any help appreciated.

[shpura]

Are those two laptops equally distanced from your wifi?

[cv_promode_1]

Are those two laptops equally distanced from your wifi?

of course.

[GREED]

only couse u said "motion lag"
mybe graph card of sec laptop ? i dont mean like low graph card, but mybe overheat?

[cv_promode_1]

Guys this really is ONLY network problem, yes I have motion lag, but I also said I have it on the NEW laptop, which naturally has significantly better guts than my 5-6 years old Asus F5VL. I played on LAN with friends alot on the new one on fullHD/full raphics without any lag whatsoever.

[kingW3]

Gproxy is probably the problem try the normal eurobattle.net gateway
Gproxy is used to cause ping/delay problems.If that doesn't helps try the ccleaner

[cv_promode_1]

Did I miss any of the posts here? I think there were some posts between King's about a topic that could contain solution for this.

btw. I dont use gproxy 

[shpura]

I dont use gproxy 

YOU DONT USE GPROXY???

[cv_promode_1]

I dont use gproxy 

YOU DONT USE GPROXY???

gtfo

Nice, any thoughts about the topic?

[shpura]

I dont use gproxy 

YOU DONT USE GPROXY???

gtfo

Nice, any thoughts about the topic?

just kidding, dunno.