Wifi not working in ubuntu 14.04

If you use a wired connection you can get fully updated. It may help

Hit http://security.ubuntu.com trusty-security/multiverse Translation-en
Hit http://in.archive.ubuntu.com trusty/main Translation-en
Hit http://security.ubuntu.com trusty-security/restricted Translation-en
Hit http://security.ubuntu.com trusty-security/universe Translation-en
Hit http://in.archive.ubuntu.com trusty/multiverse Translation-en
Hit http://in.archive.ubuntu.com trusty/restricted Translation-en
Hit http://in.archive.ubuntu.com trusty/universe Translation-en
Get:17 http://in.archive.ubuntu.com trusty-updates/main Sources [228 kB]
Get:18 http://in.archive.ubuntu.com trusty-updates/restricted Sources [4,717 B]
Get:19 http://in.archive.ubuntu.com trusty-updates/universe Sources [132 kB]
Get:20 http://in.archive.ubuntu.com trusty-updates/multiverse Sources [5,143 B]
Get:21 http://in.archive.ubuntu.com trusty-updates/main amd64 Packages [599 kB]
Get:22 http://in.archive.ubuntu.com trusty-updates/restricted amd64 Packages [15.3 kB]
Get:23 http://in.archive.ubuntu.com trusty-updates/universe amd64 Packages [302 kB]
Get:24 http://in.archive.ubuntu.com trusty-updates/multiverse amd64 Packages [11.9 kB]
Get:25 http://in.archive.ubuntu.com trusty-updates/main i386 Packages [579 kB]
Get:26 http://in.archive.ubuntu.com trusty-updates/restricted i386 Packages [15.2 kB]
Get:27 http://in.archive.ubuntu.com trusty-updates/universe i386 Packages [304 kB]
Get:28 http://in.archive.ubuntu.com trusty-updates/multiverse i386 Packages [12.1 kB]
Hit http://in.archive.ubuntu.com trusty-updates/main Translation-en
Hit http://in.archive.ubuntu.com trusty-updates/multiverse Translation-en
Hit http://in.archive.ubuntu.com trusty-updates/restricted Translation-en
Hit http://in.archive.ubuntu.com trusty-updates/universe Translation-en
Hit http://in.archive.ubuntu.com trusty-backports/main Sources
Hit http://in.archive.ubuntu.com trusty-backports/restricted Sources
Hit http://in.archive.ubuntu.com trusty-backports/universe Sources
Hit http://in.archive.ubuntu.com trusty-backports/multiverse Sources
Hit http://in.archive.ubuntu.com trusty-backports/main amd64 Packages
Hit http://in.archive.ubuntu.com trusty-backports/restricted amd64 Packages
Hit http://in.archive.ubuntu.com trusty-backports/universe amd64 Packages
Hit http://in.archive.ubuntu.com trusty-backports/multiverse amd64 Packages
Hit http://in.archive.ubuntu.com trusty-backports/main i386 Packages
Hit http://in.archive.ubuntu.com trusty-backports/restricted i386 Packages
Hit http://in.archive.ubuntu.com trusty-backports/universe i386 Packages
Hit http://in.archive.ubuntu.com trusty-backports/multiverse i386 Packages
Hit http://in.archive.ubuntu.com trusty-backports/main Translation-en
Hit http://in.archive.ubuntu.com trusty-backports/multiverse Translation-en
Hit http://in.archive.ubuntu.com trusty-backports/restricted Translation-en
Hit http://in.archive.ubuntu.com trusty-backports/universe Translation-en
Ign http://in.archive.ubuntu.com trusty/main Translation-en_IN
Ign http://in.archive.ubuntu.com trusty/multiverse Translation-en_IN
Ign http://in.archive.ubuntu.com trusty/restricted Translation-en_IN
Ign http://in.archive.ubuntu.com trusty/universe Translation-en_IN
Fetched 3,351 kB in 1min 18s (43.0 kB/s)
Reading package lists... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package hwinfo is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'hwinfo' has no installation candidate
  *-network UNCLAIMED
       description: Network controller
       product: Qualcomm Atheros
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 20
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: memory:f0800000-f09fffff
  *-network
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth0
       version: 10
       serial: 68:f7:28:65:0f:d5
       size: 100Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168g-3_0.0.1 04/23/13 ip=192.168.1.7 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
       resources: irq:80 ioport:2000(size=256) memory:f0c04000-f0c04fff memory:f0c00000-f0c03fff
0: ideapad_wlan: Wireless LAN
 Soft blocked: no
 Hard blocked: no
1: ideapad_bluetooth: Bluetooth
 Soft blocked: no
 Hard blocked: no
2: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no
eth0 Interface doesn't support scanning.

lo Interface doesn't support scanning.

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.3 LTS"
01:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:0041] (rev 20)
 Subsystem: Lenovo Device [17aa:3545]
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 10)
 Subsystem: Lenovo Device [17aa:3812]
 Kernel driver in use: r8169
Bus 002 Device 004: ID 0cf3:e300 Atheros Communications, Inc.
Bus 002 Device 003: ID 0bda:579a Realtek Semiconductor Corp.
Bus 002 Device 002: ID 0438:7900 Advanced Micro Devices, Inc.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
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 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
RUNNING STATE WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN
running connected enabled enabled enabled disabled
H/W path Device Class Description
=================================================
                          system 80E3 (LENOVO_MT_80E3_BU_idea_FM_Lenovo G50
/0 bus Lancer 5B2
/0/0 memory 128KiB BIOS
/0/4 processor AMD A8-6410 APU with AMD Radeon R5 Graphic
/0/4/8 memory 256KiB L1 cache
/0/4/9 memory 2MiB L2 cache
/0/20 memory 4GiB System Memory
/0/20/0 memory [empty]
/0/20/1 memory 4GiB SODIMM DDR3 Synchronous 800 MHz (1.2
/0/100 bridge Advanced Micro Devices, Inc. [AMD]
/0/100/1 display Mullins [Radeon APU A4-6000 with R2 Graphi
/0/100/1.1 multimedia Advanced Micro Devices, Inc. [AMD/ATI]
/0/100/2.3 bridge Family 16h Processor Functions 5:1
/0/100/2.3/0 network Qualcomm Atheros
/0/100/2.4 bridge Family 16h Processor Functions 5:1
/0/100/2.4/0 eth0 network RTL8111/8168/8411 PCI Express Gigabit Ethe
/0/100/8 generic Advanced Micro Devices, Inc. [AMD]
/0/100/10 bus FCH USB XHCI Controller
/0/100/11 storage FCH SATA Controller [AHCI mode]
/0/100/12 bus FCH USB EHCI Controller
/0/100/13 bus FCH USB EHCI Controller
/0/100/14 bus FCH SMBus Controller
/0/100/14.2 multimedia FCH Azalia Controller
/0/100/14.3 bridge FCH LPC Bridge
/0/100/14.7 generic FCH SD Flash Controller
/0/101 bridge Advanced Micro Devices, Inc. [AMD]
/0/102 bridge Advanced Micro Devices, Inc. [AMD]
/0/103 bridge Advanced Micro Devices, Inc. [AMD]
/0/104 bridge Advanced Micro Devices, Inc. [AMD]
/0/105 bridge Advanced Micro Devices, Inc. [AMD]
/0/106 bridge Advanced Micro Devices, Inc. [AMD]
/0/107 bridge Advanced Micro Devices, Inc. [AMD]
/0/1 scsi0 storage
/0/1/0.0.0 /dev/sda disk 500GB WDC WD5000LPCX-2
/0/1/0.0.0/1 /dev/sda1 volume 999MiB Windows NTFS volume
/0/1/0.0.0/2 /dev/sda2 volume 259MiB Windows FAT volume
/0/1/0.0.0/3 /dev/sda3 volume 999MiB Windows FAT volume
/0/1/0.0.0/4 /dev/sda4 volume 127MiB reserved partition
/0/1/0.0.0/5 /dev/sda5 volume 115GiB Windows NTFS volume
/0/1/0.0.0/6 /dev/sda6 volume 249GiB Windows NTFS volume
/0/1/0.0.0/7 /dev/sda7 volume 47GiB EXT4 volume
/0/1/0.0.0/8 /dev/sda8 volume 7812MiB Linux swap volume
/0/1/0.0.0/9 /dev/sda9 volume 3357MiB Windows NTFS volume
/0/1/0.0.0/a /dev/sda10 volume 25GiB Windows NTFS volume
/0/1/0.0.0/b /dev/sda11 volume 14GiB Windows NTFS volume
/0/2 scsi1 storage
/0/2/0.0.0 /dev/cdrom disk DVD-RW DA8A6SH
/0/3 scsi2 storage
/0/3/0.0.0 /dev/sdb disk xD/SD/M.S.
/0/3/0.0.0/0 /dev/sdb disk
Linux anmol-Lenovo-G50-45 3.13.0-61-generic #100-Ubuntu SMP Wed Jul 29 11:21:34 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
[ 0.000000] No AGP bridge found
[ 0.000000] No NUMA configuration found
[ 0.000000] No AGP bridge found
[ 0.360888] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[ 0.369377] ACPI: No dock devices found.
[ 0.369843] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness
[ 0.369867] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness
[ 0.370461] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness
[ 0.370477] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness
[ 0.439832] acpi PNP0A08:00: [Firmware Info]: MMCONFIG for domain 0000 [bus 00-3f] only partially covers this bridge
[ 0.451405] pci 0000:02:00.0: [10ec:8168] type 00 class 0x020000
[ 0.451424] pci 0000:02:00.0: reg 0x10: [io 0x2000-0x20ff]
[ 0.451450] pci 0000:02:00.0: reg 0x18: [mem 0xf0c04000-0xf0c04fff 64bit]
[ 0.451467] pci 0000:02:00.0: reg 0x20: [mem 0xf0c00000-0xf0c03fff 64bit]
[ 0.451536] pci 0000:02:00.0: supports D1 D2
[ 0.451539] pci 0000:02:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[ 0.472462] Found 1 acpi root devices
[ 0.480013] usbcore: registered new interface driver usbfs
[ 0.480024] usbcore: registered new interface driver hub
[ 0.480065] usbcore: registered new device driver usb
[ 0.484274] Switched to clocksource hpet
[ 0.516857] pnp: PnP ACPI: found 10 devices
[ 0.966990] pci 0000:02:00.0: Signaling PME through PCIe PME interrupt
[ 0.971892] Console: switching to colour frame buffer device 170x48
[ 0.981374] input: Lid Switch as /devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input1
[ 0.988584] ACPI: Lid Switch [LID]
[ 0.995096] ehci-pci 0000:00:12.0: applying AMD SB700/SB800/Hudson-2/3 EHCI dummy qh workaround
[ 1.004618] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 1.004621] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.004624] usb usb1: Product: EHCI Host Controller
[ 1.004627] usb usb1: Manufacturer: Linux 3.13.0-61-generic ehci_hcd
[ 1.004629] usb usb1: SerialNumber: 0000:00:12.0
[ 1.005116] hub 1-0:1.0: USB hub found
[ 1.005404] ehci-pci 0000:00:13.0: applying AMD SB700/SB800/Hudson-2/3 EHCI dummy qh workaround
[ 1.016591] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[ 1.016594] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.016598] usb usb2: Product: EHCI Host Controller
[ 1.016600] usb usb2: Manufacturer: Linux 3.13.0-61-generic ehci_hcd
[ 1.016603] usb usb2: SerialNumber: 0000:00:13.0
[ 1.016850] hub 2-0:1.0: USB hub found
[ 1.017610] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
[ 1.017613] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.017616] usb usb3: Product: xHCI Host Controller
[ 1.017618] usb usb3: Manufacturer: Linux 3.13.0-61-generic xhci_hcd
[ 1.017621] usb usb3: SerialNumber: 0000:00:10.0
[ 1.017759] hub 3-0:1.0: USB hub found
[ 1.020835] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003
[ 1.020838] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.020841] usb usb4: Product: xHCI Host Controller
[ 1.020843] usb usb4: Manufacturer: Linux 3.13.0-61-generic xhci_hcd
[ 1.020845] usb usb4: SerialNumber: 0000:00:10.0
[ 1.020997] hub 4-0:1.0: USB hub found
[ 1.064101] Loaded X.509 cert 'Magrathea: Glacier signing key: b2626663385c770ec7e384a8909ccd47c2d200e1'
[ 1.072208] IMA: No TPM chip found, activating TPM-bypass!
[ 1.073383] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[ 1.132748] r8169 0000:02:00.0: irq 80 for MSI/MSI-X
[ 1.133075] r8169 0000:02:00.0 eth0: RTL8168g/8111g at 0xffffc9000065a000, 68:f7:28:65:0f:d5, XID 10900800 IRQ 80
[ 1.133079] r8169 0000:02:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
[ 1.217101] sdhci-pci 0000:00:14.7: SDHCI controller found [1022:7813] (rev 1)
[ 1.217284] mmc0: no vqmmc regulator found
[ 1.217290] mmc0: no vmmc regulator found
[ 1.316593] usb 1-1: new high-speed USB device number 2 using ehci-pci
[ 1.448918] usb 1-1: New USB device found, idVendor=0438, idProduct=7900
[ 1.448924] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 1.449195] hub 1-1:1.0: USB hub found
[ 1.560588] usb 2-1: new high-speed USB device number 2 using ehci-pci
[ 1.693072] usb 2-1: New USB device found, idVendor=0438, idProduct=7900
[ 1.693078] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 1.693352] hub 2-1:1.0: USB hub found
[ 1.709145] ata1.00: ATA-9: WDC WD5000LPCX-24C6HT0, 02.01A02, max UDMA/133
[ 1.710016] scsi 0:0:0:0: Direct-Access ATA WDC WD5000LPCX-2 02.0 PQ: 0 ANSI: 5
[ 1.762918] psmouse serio1: elantech: assuming hardware version 4 (with firmware version 0x594f03)
[ 1.780661] usb 1-1.3: new high-speed USB device number 3 using ehci-pci
[ 1.894141] usb 1-1.3: New USB device found, idVendor=0bda, idProduct=0129
[ 1.894148] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1.894151] usb 1-1.3: Product: USB2.0-CRW
[ 1.894154] usb 1-1.3: Manufacturer: Generic
[ 1.894157] usb 1-1.3: SerialNumber: 20100201396000000
[ 1.968691] usb 2-1.2: new high-speed USB device number 3 using ehci-pci
[ 2.116812] usb 2-1.2: New USB device found, idVendor=0bda, idProduct=579a
[ 2.116820] usb 2-1.2: New USB device strings: Mfr=3, Product=1, SerialNumber=2
[ 2.116823] usb 2-1.2: Product: Lenovo EasyCamera
[ 2.116826] usb 2-1.2: Manufacturer: J58ECO2CS
[ 2.116828] usb 2-1.2: SerialNumber: 200901010001
[ 2.204724] usb 2-1.3: new full-speed USB device number 4 using ehci-pci
[ 2.313415] usb 2-1.3: New USB device found, idVendor=0cf3, idProduct=e300
[ 2.313422] usb 2-1.3: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 2.920822] Switched to clocksource tsc
[ 14.219406] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 14.529060] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness
[ 14.598178] lp: driver loaded but no devices found
[ 14.642666] usbcore: registered new interface driver btusb
[ 14.819986] input: HD-Audio Generic HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.1/sound/card0/input8
[ 14.831802] hda_codec: CX20751/2: BIOS auto-probing.
[ 14.835435] input: HD-Audio Generic Headphone as /devices/pci0000:00/0000:00:14.2/sound/card1/input10
[ 14.835565] input: HD-Audio Generic Mic as /devices/pci0000:00/0000:00:14.2/sound/card1/input9
[ 15.056053] usbcore: registered new interface driver rts5139
[ 15.062368] uvcvideo: Found UVC 1.00 device Lenovo EasyCamera (0bda:579a)
[ 15.065540] input: Lenovo EasyCamera as /devices/pci0000:00/0000:00:13.0/usb2/2-1/2-1.2/2-1.2:1.0/input/input11
[ 15.065664] usbcore: registered new interface driver uvcvideo
[ 18.225017] EXT4-fs (sda7): re-mounted. Opts: errors=remount-ro
[ 21.784179] r8169 0000:02:00.0 eth0: link down
[ 21.784207] r8169 0000:02:00.0 eth0: link down
[ 21.784266] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 21.784793] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 23.364857] r8169 0000:02:00.0 eth0: link up
[ 23.364873] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
 Release Date: 12/12/2014
 Manufacturer: LENOVO
 Product Name: 80E3
 Serial Number: 1046717501802
 Manufacturer: LENOVO
 Product Name: Lancer 5B2
 Serial Number: PF06MWVB
 Manufacturer: LENOVO
 Serial Number: PF06MWVB
 Manufacturer: AMD processor
 Serial Number: NotSupport
 String 1: String1 for Original Equipment Manufacturer
 String 2: String2 for Original Equipment Manufacturer
 String 3: String3 for Original Equipment Manufacturer
 String 4: String4 for Original Equipment Manufacturer
 String 5: String5 for Original Equipment Manufacturer
 Option 1: String1 for Type12 Equipment Manufacturer
 Option 2: String2 for Type12 Equipment Manufacturer
 Option 3: String3 for Type12 Equipment Manufacturer
 Option 4: String4 for Type12 Equipment Manufacturer
 Manufacturer: Empty
 Serial Number: Empty
 Manufacturer: Hynix
 Serial Number: 408981E2
eth0 no wireless extensions.

lo no wireless extensions.

/etc/modprobe.d/alsa-base.conf:install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; : ; }
/etc/modprobe.d/ath5k.con:options ath5k nohwcrypt=1
/etc/modprobe.d/ath9k.conf:options ath9k nohwcrypt=1
/etc/modprobe.d/blacklist-ath_pci.conf:# which ath5k cannot recover. To prevent this condition, stop
/etc/modprobe.d/blacklist-ath_pci.conf:blacklist ath_pci
/etc/modprobe.d/blacklist.conf:blacklist eth1394
/etc/modprobe.d/blacklist.conf:# replaced by p54pci
/etc/modprobe.d/blacklist.conf:blacklist prism54
/etc/modprobe.d/blacklist.conf:# replaced by b43 and ssb.
/etc/modprobe.d/blacklist.conf:blacklist bcm43xx
/etc/modprobe.d/blacklist-oss.conf:blacklist uart6850
/etc/modprobe.d/blacklist-watchdog.conf:blacklist twl4030_wdt
/etc/modprobe.d/iwlwifi.conf:# /etc/modprobe.d/iwlwifi.conf
/etc/modprobe.d/iwlwifi.conf:# iwlwifi will dyamically load either iwldvm or iwlmvm depending on the
/etc/modprobe.d/iwlwifi.conf:# microcode file installed on the system. When removing iwlwifi, first
/etc/modprobe.d/iwlwifi.conf:# remove the iwl?vm module and then iwlwifi.
/etc/modprobe.d/iwlwifi.conf:remove iwlwifi \
/etc/modprobe.d/iwlwifi.conf:(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
/etc/modprobe.d/iwlwifi.conf:&& /sbin/modprobe -r mac80211
/etc/modprobe.d/lenovo.config:options lenovo_nb_wmi wapf=1
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
sudo: hwinfo: command not found
root 823 0.0 0.1 344868 6088 ? Ssl 18:50 0:00 NetworkManager
root 1092 0.0 0.1 10228 3740 ? S 18:50 0:00 /sbin/dhclient -d -sf /usr/lib/NetworkManager/nm-dhcp-client.action -pf /run/sendsigs.omit.d/network-manager.dhclient-eth0.pid -lf /var/lib/NetworkManager/dhclient-4b7ff9ae-6e65-4f67-8a25-a871ee20f688-eth0.lease -cf /var/lib/NetworkManager/dhclient-eth0.conf eth0
nobody 1201 0.0 0.0 35220 1552 ? S 18:50 0:00 /usr/sbin/dnsmasq --no-resolv --keep-in-foreground --no-hosts --bind-interfaces --pid-file=/run/sendsigs.omit.d/network-manager.dnsmasq.pid --listen-address=127.0.1.1 --conf-file=/var/run/NetworkManager/dnsmasq.conf --cache-size=0 --proxy-dnssec --enable-dbus=org.freedesktop.NetworkManager.dnsmasq --conf-dir=/etc/NetworkManager/dnsmasq.d
anmol 2691 0.0 0.0 15940 936 pts/0 S+ 18:59 0:00 grep --color=auto -E wpa|icd|etwork
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.1.1
total 92012
1048577 drwxr-xr-x 4 root root 4096 Aug 12 17:03 .
      2 drwxr-xr-x 23 root root 4096 Aug 12 12:57 ..
1048581 -rw-r--r-- 1 root root 1162712 Jul 15 2014 abi-3.13.0-32-generic
1048592 -rw-r--r-- 1 root root 1165129 Jul 29 18:05 abi-3.13.0-61-generic
1048582 -rw-r--r-- 1 root root 165611 Jul 15 2014 config-3.13.0-32-generic
1048589 -rw-r--r-- 1 root root 165763 Jul 29 18:05 config-3.13.0-61-generic
      1 drwxr-xr-x 4 root root 4096 Jan 1 1970 efi
1048579 drwxr-xr-x 5 root root 4096 Aug 12 13:00 grub
1052935 -rw-r--r-- 1 root root 28328607 Aug 12 12:57 initrd.img-3.13.0-32-generic
1055019 -rw-r--r-- 1 root root 19218261 Aug 12 17:03 initrd.img-3.13.0-61-generic
1054879 -rw-r--r-- 1 root root 19215708 Aug 12 17:03 initrd.img-3.13.0-61-generic.old-dkms
1048583 -rw-r--r-- 1 root root 176500 Mar 12 2014 memtest86+.bin
1048584 -rw-r--r-- 1 root root 178176 Mar 12 2014 memtest86+.elf
1048585 -rw-r--r-- 1 root root 178680 Mar 12 2014 memtest86+_multiboot.bin
1048580 -rw------- 1 root root 3381262 Jul 15 2014 System.map-3.13.0-32-generic
1048591 -rw------- 1 root root 3391819 Jul 29 18:05 System.map-3.13.0-61-generic
1048587 -rw-r--r-- 1 root root 5798112 Aug 12 12:45 vmlinuz-3.13.0-32-generic
1048590 -rw------- 1 root root 5822208 Jul 29 18:05 vmlinuz-3.13.0-61-generic
1052933 -rw------- 1 root root 5824120 Aug 12 12:56 vmlinuz-3.13.0-61-generic.efi.signed
Support status summary of 'anmol-Lenovo-G50-45':

You have 10 packages (0.5%) supported until May 2016 (9m)
You have 1738 packages (94.1%) supported until May 2019 (5y)
You have 46 packages (2.5%) supported until February 2015 (9m)
You have 35 packages (1.9%) supported until May 2017 (3y)

You have 0 packages (0.0%) that can not/no-longer be downloaded
You have 17 packages (0.9%) that are unsupported

Run with --show-unsupported, --show-supported or --show-all to see more details
Downloaded daily snapshot dated 2015-07-31 03:15:02
--2015-08-12 18:59:25-- http://www.linux-usb.org/usb.ids
Resolving www.linux-usb.org (www.linux-usb.org)... 216.34.181.97
Connecting to www.linux-usb.org (www.linux-usb.org)|216.34.181.97|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 549737 (537K) [text/plain]
Saving to: ‘/var/lib/usbutils/usb.ids.new’

100%[======================================>] 5,49,737 181KB/s in 3.0s

2015-08-12 18:59:29 (181 KB/s) - ‘/var/lib/usbutils/usb.ids.new’ saved [549737/549737]

Done.
Module Size Used by
bnep 19624 2
rfcomm 69160 8
nls_iso8859_1 12713 1
uvcvideo 80885 0
videobuf2_vmalloc 13216 1 uvcvideo
videobuf2_memops 13362 1 videobuf2_vmalloc
videobuf2_core 40664 1 uvcvideo
rts5139 335409 0
videodev 134688 2 uvcvideo,videobuf2_core
snd_hda_codec_conexant 57486 1
snd_hda_codec_hdmi 46368 1
snd_hda_intel 56531 10
snd_hda_codec 193017 3 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel
snd_hwdep 13602 1 snd_hda_codec
snd_pcm 102099 3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
snd_page_alloc 18710 2 snd_pcm,snd_hda_intel
snd_seq_midi 13324 0
snd_seq_midi_event 14899 1 snd_seq_midi
snd_rawmidi 30144 1 snd_seq_midi
kvm 455794 0
crct10dif_pclmul 14289 0
crc32_pclmul 13113 0
snd_seq 61560 2 snd_seq_midi_event,snd_seq_midi
ghash_clmulni_intel 13216 0
snd_seq_device 14497 3 snd_seq,snd_rawmidi,snd_seq_midi
aesni_intel 55624 0
snd_timer 29482 2 snd_pcm,snd_seq
aes_x86_64 17131 1 aesni_intel
lrw 13286 1 aesni_intel
gf128mul 14951 1 lrw
glue_helper 13990 1 aesni_intel
ablk_helper 13597 1 aesni_intel
cryptd 20359 3 ghash_clmulni_intel,aesni_intel,ablk_helper
snd 69322 31 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi
parport_pc 32701 0
joydev 17381 0
btusb 32412 0
bluetooth 391136 22 bnep,btusb,rfcomm
ppdev 17671 0
serio_raw 13462 0
lp 17759 0
parport 42348 3 lp,ppdev,parport_pc
ideapad_laptop 18216 0
sparse_keymap 13948 1 ideapad_laptop
video 19476 0
mac_hid 13205 0
shpchp 37032 0
soundcore 12680 1 snd
i2c_piix4 22155 0
psmouse 106647 0
sdhci_pci 23172 0
sdhci 43015 1 sdhci_pci
ahci 34091 3
r8169 71677 0
libahci 32716 1 ahci
mii 13934 1 r8169

Is the system fully updated now? You can check with:

sudo apt-get update; sudo apt-get upgrade; sudo apt-get dist-upgrade

Reboot to test

done but no solution

Apparently you are hitting Bug #1436940

A working driver for this WLAN device seems not to exist yet.
I recommend you subscribe that bug report to get notified of the progress.

ohk.....
isn't there any solution to it, cause i love ubuntu over windows 10.

Could try the 4.1 kernel from the main line PPA.

Manfred is right.

The following thread mentions the same model and make of PC with the exact same wireless adapter:

https://answers.launchpad.net/ubuntu/+source/gnome-nettool/+question/269321

No support yet for your wireless adapter....