no internet access

i have a problem with internet access.i made a format on my laptop and i put the windows 7 ultimate 64 bits.i was ok the first day with internet.the next day i had the problem with internet access.the yellow triangle and ununidentified network.in a week i made 3 times format of the laptop and i have the same problem again.and i dont know y it let me to have internet access the first day.i didnt install any program.i have another laptop and its ok with the internet access.i also try another router but nothing.pls help me...
this is my ipconfig/all.

i had for 7 days internet and before 2 days after i boot my laptop i saw the yellow triangle and the no limited access

yes i set the router up for wireless access.
i also cant get to the internet with ethernet.
but i can access internet with other laptop by wireless and ethernet.

Well for some reason it's not showing you as being connected to the router, all I see there is a DNS address and a bunch of default IP's which is what you see what the router isn't working or can't resolve the IP.

Is the other machine connected to your router a Windows 7 machine?

Which make, model and version number is this router? Have you tried updating the routers firmware?

Did you download the Windows updates when you had the connection working before?

Try running this batch file which will reset winsock, reset the TCP/IP stack and release renew your IP.

Download Renew IP + Reset Winsock Batch File

yes the other machine connected to the router is windows 7.
my router is thomson gateway,model TG585 v7,and the software release 7.4.2.7.i dont know where i can find and how to install the update.
yes i download the updates when i had internet.
i already try this batch file but nothing happend.

parperis said:

yes the other machine connected to the router is windows 7.
my router is thomson gateway,model TG585 v7,and the software release 7.4.2.7.i dont know where i can find and how to install the update.
yes i download the updates when i had internet.
i already try this batch file but nothing happend.

If you havn't done this yet you need to try setting up the wireless manually on the laptop. That means you need to go into the wireless connection setup on your laptop and designate which ever settings you have on your router. You need to type in the SSID, security key and use WPA2 and AES, if the router is using wireless N or G you need to do the same when setting up the connection.

Other than that make sure you have the right network drivers. I don't see much else to go on here because your ipconfig isn't telling me a thing. The link below should help.

http://forevergeeks.com/how-to-setup...e-on-windows-7

i set up the wireless settings manually but nothing......i think my drivers are up-to-date.....

parperis said:

i set up the wireless settings manually but nothing......i think my drivers are up-to-date.....

Parperis, Have you tried resetting the router? Should be a small hole on the side of the router for that.