Hi, I've had this problem since november 2013 when I bought the laptop. With Ubuntu 13.10 at least modprobe and modprobe -r used to work. With Ubuntu 14.04 the connection drops even more often and only restart helps (most of the times). All drivers I found origin from the released by RealTek. They seem to have a bug which no one still cannot find and fix.
Lenovo ThinkPad S540 Ubuntu 14.04 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1240940 Title: Need support for Realtek Wifi card rtl8723be [10ec:b723] Status in HWE Next Project: Confirmed Status in HWE Next trusty series: Confirmed Status in “linux” package in Ubuntu: Fix Committed Status in “linux” source package in Trusty: Fix Committed Bug description: This device is appearing in some OEM machines, but driver is not yet available upstream. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1240940/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
