Public bug reported:

I have Ubuntu Xenial(16.4.0.2) installed and unable to find wireless
networks to connect to. Wireless switch is on and wireless networking is
enabled and the device is in a up state

wlp2s0    Link encap:Ethernet  HWaddr 94:53:30:4d:84:27
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
More information on my setup:

$ lspci -nn | grep 0280
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE 
PCIe Wireless Network Adapter [10ec:b723]

$ lsusb
Bus 001 Device 004: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 001 Device 003: ID 05c8:0383 Cheng Uei Precision Industry Co., Ltd (Foxlink)
Bus 001 Device 002: ID 0438:7900 Advanced Micro Devices, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 0bda:b006 Realtek Semiconductor Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

$ rfkill list all
0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
1: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no


 $ dmesg | grep -e wlan -e b43
[   15.006188] rtl8723be 0000:02:00.0 wlp2s0: renamed from wlan0

$ sudo modprobe b43
$
This is a dual boot system and when I boot with Windows 10, I am able to find 
wireless networks and connect successfully with the same hardware.

Tried workaround mentioned in How do I get a Realtek RTL8723BE wireless
card to work? but did not help.

Ubuntu is able to find wireless connection at home without any problem.
When I go to a library, that's when Ubuntu fails to pick up any wireless
network.

Rebooted Ubuntu and captured syslog messages when I was in a library. Syslog 
messages available at 
http://pastebin.com/W4BuC74W

** Affects: ubuntu
     Importance: Undecided
         Status: New

** Attachment added: "syslog messages"
   https://bugs.launchpad.net/bugs/1666257/+attachment/4822817/+files/syslog.txt

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https://bugs.launchpad.net/bugs/1666257

Title:
  Cannot find wireless networks in xenial

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