Network controller trouble. HELP!

bogdanuk · 18 Dec 2013 at 16:39

Hi, I am having a strange problem with my Realtek onboard (Asus P8Z77-V LX) network controller. I am connected to the internet but I can not access the internet or I have very slow speed. I have reinstalled every driver version I was able to find, original driver from the CD included, I reset the browsers(IE & Chrome), I rebooted and reset router (Virgin Super Hub 1 @ 120mb), I refreshed DNS and Gateway( switched from automatic to manual and vice-versa), I installed a separate network card TP-LINK TG-3468 Realtek Gigabit but got the same behavior (I disabled the on-board while using it), I paused the Kaspersky 2014 anti-virus for a while and still nothing. I scanned with anti-virus for malware & co and nothing was found. My laptop or phone, both connected wirelessly, works like a charm. I really don't know what is going on. Reinstalling my windows 7 ultimate 64bit might look as a final attempt to solve the problem. HELP !

bignev72 · 18 Dec 2013 at 17:58

If you have tried two different network cards (onboard and TG-3468) then I don't think it's your motherboard.

What did you scan for a virus with? Also have you tried a different network cable/port?

biuro74 · 18 Dec 2013 at 19:56

Bogdanie z UK :-)

Check any linux live distro (Ubuntu for example) how it works with Internet connection. It might be both something wrong with your system, or cable. Are you sure laptop works through cable fine, too ?
My wife's laptop is very picky regarding to Internet connections, too. Doesn't matter which cable I use, it might work, or refuse to connect. Sometimes. Investigation revealed my wife bent some wires inside the socket, so not every cable works fine, but if it works there's no guarantee it will work after next shutdown. I've lost a lot of hair due to inspecting this

bogdanuk · 18 Dec 2013 at 21:36

The laptop works well wirelessly but I haven't try it through the wire, I will check this too. I have replaced the Ethernet cable too and switched between all 4 router ports available, still no improvement. I have scanned it with Kaspersky Internet Security 2014, it came out clean. I am very careful with all the wires and I did checked all of them, everything seems to be fine. I forgot to mention that my system is overclocked, not by me, but by the company who sold me the motherboard+CPU+RAM bundle. I tried to enter the bios these days but I wasn't able too (del or F2 and no reaction) so probably is from there.

bogdanuk · 20 Dec 2013 at 07:01

I tried the laptop with the wired connection and it worked just fine. Only the desktop is having the internet problem and even if a restart it is working for max half an hour and then stops. But still showing is connected

Will Gill · 20 Dec 2013 at 09:51

have you checked your browser settings to ensure you haven't added a proxy server?

biuro74 · 20 Dec 2013 at 15:29

Check you PING time from that Windows PC to default router and then to any website, and if it's high - check Linux distro, as I said (with PING, too).

bogdanuk · 20 Dec 2013 at 16:06

Problem solved...I think

...I uninstall the Kaspersky Internet Security 2014 and the internet start working. Strange because I paused it once without result but after uninstalling everything came back to normal. I wrote to the Kaspersky Technical Support for a solution to this problem and I will post their response when I will get one.