I have purchased a new Dell inspiron 15 3521 laptop. Initially both wired LAN as well wireless in not working. After configuring the manual IP address for LAN, wired network is working. Wireless is also working for some time after upgrade and restart network-manager. Suddenly it is not working. output of various commands are as follows. can someone help me on this.
Thanks in advance for your support.
lshw -C network *-network description: Ethernet interface product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:01:00.0 logical name: eth0 version: 05 serial: 74:86:7a:42:f0:ac size: 100Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=192.168.1.20 latency=0 multicast=yes port=MII speed=100Mbit/s resources: irq:42 ioport:2000(size=256) memory:c0404000-c0404fff memory:c0400000-c0403fff *-network description: Wireless interface product: QCA9565 / AR9565 Wireless Network Adapter vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:02:00.0 logical name: wlan0 version: 01 serial: 3c:77:e6:a0:4c:85 width: 64 bits clock: 33MHz capabilities: bus_master cap_list rom ethernet physical wireless configuration: broadcast=yes driver=ath9k driverversion=3.2.0-58-generic firmware=N/A ip=192.168.1.13 latency=0 multicast=yes wireless=IEEE 802.11bgn resources: irq:17 memory:c0500000-c057ffff memory:afb00000-afb0ffff WARNING: output may be incomplete or inaccurate, you should run this program as super-user. uname -a 88-Ubuntu SMP Tue Dec 3 17:37:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux lspci | grep -i wireless 02:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01) rfkill list all 1: dell-wifi: Wireless LAN Soft blocked: no Hard blocked: no 2: dell-bluetooth: Bluetooth Soft blocked: no Hard blocked: no 3: phy0: Wireless LAN Soft blocked: no Hard blocked: no 4: hci0: Bluetooth Soft blocked: no Hard blocked: no