Problem
I cannot connect to the Internet when connected to my DLink Wireless AC1200 Access Point DAP-1650 via Ubuntu 14.04 Trusty Tahr LTS. I can connect to the Internet when connected to my Netgear Broadband Router WNDR 3700 v3, which unfortunately is further away in the basement through quite a number of walls. Everything works when booted into Windows with both wireless networks.
This is a fresh install of Ubuntu 14.04 Trusty Tahr LTS, installed last week and updated via eth0, and has never worked. I get an IP address assigned, I get the "Connected to " after connecting, but I cannot access anything on my local network or on the internet.
Network
- Comcast Blast 105 Cable Internet
- [Motorola Surfboard SB6121 DOCSIS 3.0][1]
- [Netgear Broadcom Router WNDR 3700 v3][2]
- [DLINK Wireless AC1200 Access Point][3], connected via Gigabit Ethernet to WNDR3700
System
- Ubuntu 14.04 LTS 3.13.0-45-generic #74-Ubuntu SMP (Dual Boot with Windows 7)
- Dell Inspiron N4010
$ lspci -nn -d 14e4:
03:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter [14e4:4727] (rev 01)
$ iwconfig (working connection)
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11abg ESSID:"NetgearWNDR3700v3"
Mode:Managed Frequency:2.437 GHz Access Point: 4C:60:DE:46:83:FB
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
$ iwconfig (Failed connection)
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11abg ESSID:"DAP1650"
Mode:Managed Frequency:2.457 GHz Access Point: F8:E9:03:C9:E3:F0
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
$ dmesg (tailed after trying to connect to DAP-1650)
[ 5030.512332] cfg80211: Calling CRDA to update world regulatory domain
[ 5030.583870] cfg80211: World regulatory domain updated:
[ 5030.583875] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 5030.583877] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 5030.583878] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 5030.583880] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 5030.583881] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 5030.583883] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Here is the output of lsmod:
$ lsmod |grep -e wl -e brcmsmac
wl 4207846 0
lib80211 14381 2 wl,lib80211_crypt_tkip
cfg80211 484040 1 wl
If I go to Settings->Software & Updates->Additional Drivers, there is an entry: Broadcom Corporation: Inspiron M5010/XPS 8300 This device is using an alternate driver. Using Broadcom 802.11 Linux STA wireless driver source from bcmwl-kernel-source (proprietary) 1 proprietary driver in use.
Hope this helps!