Suddenly dead wifi - Dell E6420

[VladTheImpaler]

I picked up an inexpensive Dell Latitude E6420 a couple of months ago. Mint/Cinnamon 17.1 installed flawlessly. Wifi and everything else worked fine.

I booted this evening and have no wifi. I rebooted the router even though other wifi devices in the house were working fine.

sudo /usr/lib/linuxmint/mintWifi/mintWifi.py in terminal spit out:

-------------------------
* I. scanning WIFI PCI devices...
-- Intel Corporation Centrino Ultimate-N 6300 (rev 35)
==> PCI ID = 8086:422b (rev 35)
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
eth0 no wireless extensions.

lo no wireless extensions.

wlan0 IEEE 802.11abgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=off
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off

-------------------------
* IV. querying ifconfig...
eth0 Link encap:Ethernet HWaddr 5c:26:0a:7b:e2:58
inet addr:192.168.1.145 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::5e26:aff:fe7b:e258/64 Scope:Link
inet6 addr: fd5f:f005:e6d5:0:b08f:652d:1dbf:c9/64 Scope:Global
inet6 addr: fd5f:f005:e6d5:0:5e26:aff:fe7b:e258/64 Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:11669 errors:0 dropped:0 overruns:0 frame:0
TX packets:9407 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:7874275 (7.8 MB) TX bytes:1728693 (1.7 MB)
Interrupt:20 Memory:e2e00000-e2e20000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:720 errors:0 dropped:0 overruns:0 frame:0
TX packets:720 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:70882 (70.8 KB) TX bytes:70882 (70.8 KB)

-------------------------
* V. querying DHCP...
-------------------------
* VI. querying nslookup google.com...
Server: 71.10.216.1
Address: 71.10.216.1#53

Non-authoritative answer:
Name: google.com
Address: 64.233.177.139
Name: google.com
Address: 64.233.177.102
Name: google.com
Address: 64.233.177.113
Name: google.com
Address: 64.233.177.101
Name: google.com
Address: 64.233.177.100
Name: google.com
Address: 64.233.177.138



I don't know what changed or what happened.

Thank you in advance for your help with this.

Vlad

[Laurent85]

Open a terminal, copy/paste commands and post output

Code: Select all

rfkill list all
lspci -nnk | grep -iA2 net

[VladTheImpaler]

jay@Laptop ~ $ rfkill list all
0: dell-wifi: Wireless LAN
Soft blocked: no
Hard blocked: yes
1: dell-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: yes
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes
jay@Laptop ~ $ lspci -nnk | grep -iA2 net
00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit Network Connection [8086:1502] (rev 04)
Subsystem: Dell Device [1028:0493]
Kernel driver in use: e1000e
--
02:00.0 Network controller [0280]: Intel Corporation Centrino Ultimate-N 6300 [8086:422b] (rev 35)
Subsystem: Intel Corporation Centrino Ultimate-N 6300 3x3 AGN [8086:1121]
Kernel driver in use: iwlwifi

[Laurent85]

0: dell-wifi: Wireless LAN
Soft blocked: no
Hard blocked: yes

Wireless is hardware blocked. Check bios settings or any switch turned off.

[VladTheImpaler]

I'm an idiot.

Thank you for the help Laurent.