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I don't know what happened but all of the sudden (about two days ago) my wifi is absolutely horrible. I asked my coworker if it's working fine for him and he says it's fine. I used Ookla's speed test and get a ping of about 8ms but it doesn't even finish the test. It times out. I get internet here and there but nothing close to even allowing me to use Facebook and Facebook chat. Here's some information for you.

eth0      no wireless extensions.

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"My Network"  
      Mode:Managed  Frequency:2.437 GHz  Access Point: 06:27:22:F1:4F:B9   
      Bit Rate=72.2 Mb/s   Tx-Power=20 dBm   
      Retry  long limit:7   RTS thr=2347 B   Fragment thr:off
      Encryption key:off
      Power Management:off
      Link Quality=70/70  Signal level=-38 dBm  
      Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0    
      Tx excessive retries:0  Invalid misc:113   Missed beacon:0

docker0   no wireless extensions.

So I tried to get around the wifi issue and plug in an ethernet cord, but it doesn't even detect the ethernet cord. Here's some more info.

lshw -C network

  *-network               
       description: Wireless interface
       product: RTL8188EE Wireless Network Adapter
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlan0
       version: 01
       serial: 9c:d2:1e:3f:4d:14
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8188ee driverversion=3.13.0-61-generic firmware=N/A ip=192.168.1.39 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       resources: irq:16 ioport:3000(size=256) memory:f0200000-f0203fff
  *-network
       description: Ethernet interface
       product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:05:00.0
       logical name: eth0
       version: 07
       serial: a0:1d:48:e8:e2:05
       size: 10Mbit/s
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8106e-1_0.0.1 06/29/12 ip=162.211.89.2 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:47 ioport:2000(size=256) memory:f0004000-f0004fff memory:f0000000-f0003fff memory:f0400000-f040ffff

Thanks for the help.

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Some revisions of Realtek NICs do not work well with the standard kernel driver.

So press Ctrl+Alt+T to go to a terminal and type:

sudo apt-get install r8168-dkms

That should solve it!

  • As you're a reputation 6 user: If this answer helped you, don't forget to click the grey at the left of this text, which means Yes, this answer is valid! ;-) – Fabby Aug 13 '15 at 21:02

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