My Laptop is Lenovo Thinkpad T400 with Ubuntu 12.04 and Windows 7
When I use Ubuntu 12.04 (and 10.10 previously), every now and then, the wireless connection drops, and then no wireless networks are detected.
Things are similar in Windows 7. When wireless connection drops, it says wireless adaptor not detected.
- When the problem happens, if I restart the laptop, the wireless connection will be back, regardless of which OS it is.
The problem happens more often when I move my laptop around, but also happens when I keep it at the same place on my desk.
The problem didn't occur during the first year of use.
Some advice I found:
- Some said it might be because the wireless adapter was loose. But I don't know how to find the wireless adapter in my laptop and how to detach and re-attach it. Can someone give me adivce?
- Some said that it might be because the power management disable the wireless adapter to save energy. I keep my battery charged at 50~60%, and the problem occurs when the laptop is in power not just when it is on battery.
I wonder if you could give some advice?
Thanks and regards!