Lenovo G400s Wireless Connection Limited Access on Windows 7 Ultimate - 32 bit

Just bought Lenovo G400s, install windows 7 ultimate - 32 bit on it. 
It turns out the wireless network driver need to install manually, the disc driver that came with laptop was for windows 8.1. So I went to lenovo website, put on the series and download the wirelss network driver which is around 250 MB.
I installed the driver and connect to the wireless network. My office wireless was on security and use static ip. I changed the ipv4 ip static already. It connected for a while, 1-2 second then lost connection. I checked with ping to google, got 2 records of live connection which is very short. After that it try to reconnecting itself again and again with status said "Limited Access" 
I search in google, read some forums about problem in different series, so I use another computer go to Intel website to download latest driver. Got it installed, but it's still the same.
I try download broadcom driver, but it's really different and doesn't work at all.
Now I don't know what to do.
Windows 7 Ultimate - 32 bit
Inter(R) Centrino(R) Wireless-N 135
Driver Provider: Intel
Driver Date: 1/26/2014
Driver Version: 15.11.0.7
Digital Signer: Microsoft Windows Hardware Compability Publisher
What makes it weird, although from intel website said the driver date is in 3/21/2014, and the version is 16.11.0, but this information I get from device driver was different. 
Here's the intel's website if you're wondering:
_https://downloadcenter.intel.com/SearchResult.asp​x?lang=eng&ProductFamily=Wireless+Networking&Produ​ctLine=Intel%C2%AE+Wi-Fi+Products&ProductProduct=I​ntel%C2%AE+Centrino%C2%AE+Wireless-N+135#&OSVersio​n=Windows%207%20(32-bit)*&DownloadType=Software%20​Applications
Can anyone help me?
Solved!
Go to Solution.

Today I want to install windows 8.1 on it, because the laptop came with windows 8.1 driver disc. 
However, I try the wireless connection once again , one final try before I clean install the OS.
It turns out the internet connection is connected. Ping is quite stable, got a small drop. Nonetheless, IT'S CONNECTED!!!
I don't know what happened, I tried thousand ways yesterday and gave up. Today I don't set anything just try connecting with static IP set the ipv4 just like I did yesterday, and it connects without hassle!! is there a pc fairy or what?
The possible way I can think of is the router's internet connection's got restarted since It's a new day at office. 
Despite how it solved still mystery to me, I think I mark this thread as Solved.

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