On my machine, I do have one internal wifi device. Also I had connected wired cable.I configured both of them to have ip from DHCP and both of them working fine.But, whenever I disable the wired connection (or unplug the NIC cable), wireless connection also get stopped.No firewall rule is in picture.I am using kernel-3.1302:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188EE Wireless Network Adapter (rev 01)03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
Weird connection: wired and wireless
linux;networking