Hello everyone,
I bought my T420 model with N6205 network card last December, since then, the wireless connection never functions well. Here's the problem(it happens in my apartment):
Every once in a while (normally within four to five days), my wireless connection drops automatically. It would first appear as no connection and it'll try to reconnect, then it appears as successful connected for 5 to 10 seconds(but definitely no internet access), and it'll drop the connection completely again, then automatically repeat :reconnect, drop,reconnect, drop ... never stops. Though I can still use cable to connect to my router to have internet access.
This problem occurs to none of my smartphones, ipad, ipod touch, my old laptop and my roomates' wireless devices under the same wirless environment. They always have solid wireless connection.
Of course, regular approaches have been taken trying to solve the problem:
1. manually disable wireless functionality on my T420, and enable it again
failed
2. reboot computer
failed
3. go to power manager and turn PCI express off
failed
4. uncheck allow the wireless LAN radio to be turned off when inactive
failed
5.updated to the latest driver through lenovo
failed
6. restart router
successful
So it may be that I've got a bad router? This is why I didn't post my problem in the first place, since I was hoping it may disappear with other routers.
I changed to a new router, the problem persists.
There's no way I can restart the router every time when my laptop looses connection, it'll affect the other users.
Based on the description of my problem, I believe there's a great chance there's something wrong with my T420 rather than with my router.
Is there anybody who can help me with this?
Can lenovo staff see this post?
Any suggestion about who I should turn to?
Thanks a lot.
T420,
i7 2640M, N6205
Windows 7 professional, 64 bit
