We have a Linksys WRT120N in our apartment and it keeps dropping the wifi, requiring sometimes multiple restarts per day.
Before I buy a new one, I wanted to try updating the firmware, as it is out of date.
The update doesn't take long, so you probably won't even notice.
At the end of the process, the router will re-start so you may lose your internet connection for a minute.
To upgrade the firmware on your router, please go through thefollowing steps. Download the latest firmware and unzipthe files to a folder on your computer that you can locate themeasily.