Problems with Wi-Fi connection randomly dropping for no reason can be solved a few ways. You shoud check your router because there may be a problem with your wireless router rather than the device itself. Then check the power saving settings on your devise. Some Windows devices have a default setting that restricts wi-fi capabilities in order to save power- turn this setting off. Lastly, try to download and install the latest LAN driver. Your current wireless driver might be out-of-date, and you might just need to download the latest one from Lenovo's website to fix Wi-Fi problems. If this does not help, refer to
[[Lenovo Yoga 2 Troubleshooting]].