My wifi connection keeps failingon xubuntu 14.10 beta2 (I had the same on 11.4, I updated because I read that the kernel update fixed it): it's suddenly unable to connect to anything. If I then disable and re-enable wireless networking, I get this repeatedly in dmesg:
[ 6601.635223] wlan0: authenticate with 98:fc:11:79:2c:5c [ 6601.655253] wlan0: direct probe to 98:fc:11:79:2c:5c (try 1/3) [ 6601.859117] wlan0: direct probe to 98:fc:11:79:2c:5c (try 2/3) [ 6602.063204] wlan0: direct probe to 98:fc:11:79:2c:5c (try 3/3) [ 6602.267407] wlan0: authentication with 98:fc:11:79:2c:5c timed out
My wifi is this (from lspci):
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
If anyone knows of any route I can investigate, please let me know!