Y570 internet speed problems (WiFi Link 1000 BGN)

[dzjosjusuns]

I m unable to get decent internet speed from WiFi Link 1000 BGN Wireless adapter. LAN adapter works great. Other Laptop on same wifi router works great +30mbps up/down, Me on cabel has +30mbps up/down, max speeds can get up to 100mbps, thats why i need N.

So my problem:

on wifi its is 1mbps down / 30mbps up (n mode - enabled on adapter) - http://www.speedtest.net/result/1650760176.png

on wifi its is 20mbps down /20mbps up (n mode - disabled on adapter) - http://www.speedtest.net/result/1650765521.png

other laptop on same router (etalon, normal behaviou same as on Cabel) - http://www.speedtest.net/result/1650768652.png

Tryed setting router to 20/40/auto frequencys, enabeling WMM, Setting finxed and auto chanels, setting security to WPA2-PSK/AES, and none at all, but problem persists.

Coould someone please sugest some solutions? or Ideas?

Now I have WiFi Link 1000 BGN 14.2.0.10 drivers installed, but tryed original, and others, but nothing helps.

[yigit]

http://forum.lenovo.com/t5/IdeaPad-Y-U-B-V-and-Z-series/Z570-WIFI-Speed/m-p/518371#M42093

http://forum.lenovo.com/t5/IdeaPad-Y-and-U-series-Laptops/Y560-Wireless-n-mode-not-connecting/ta-p/3...

[dzjosjusuns]

Tryed all of those, nothing helped : (

[yigit]

- try to update drivers from intel.com and/of flashed latest bios?
- remove readycomm if installed.
- disable security option and check if it's not password issue.

[dzjosjusuns]

I realy apreciate your help, thankyou, but no solution for me jet.

i have no readycomm installed.
downloaded bios flasher from lenowo just, but it sas that i already have latest version
and all drivers ar up to date event wireless. now i have one that was listed as latest on intels page 14.0.0.113, but i also had 14.2.0.10.
And security, i tryed without authentification, and on windows side just to test, disabled UAC.

Still nothing : (

[dzjosjusuns]

Strange thing is, that after fresh boot, runing speedtest, for first time ir runs at full speed 30mbps, but then after a secon or two falls back to 1mbps..

[yigit]

can you check the speed on safe mode with networking?

[dzjosjusuns]

Message from safe mode
It looks that in safe mode works as expected, 30mbps un and down.
http://www.speedtest.net/result/1650962290.png

I guess it means that card is ok. But what could be wrong then?

[yigit · Accepted solution]

one of the software you installed may effect download speed. run task manager > performance > resource monitor > network tab, check the network activity. also, try to disable anti-virus/firewall.

[dzjosjusuns]

Thankyou! I had ESET NOD32 v5 Antivirus installed. Only uninstalling nod32 solved my problem!

Much apreciated your help.
+karma points : )