I have a Realtek RTL8188CE 802.11b/g/n WiFi adapter in my computer. Today I upgraded to 13.10 and I can't connect. Before upgrading WiFi worked just fine. I can see WiFi networks, but it just gives the error "IP configuration was unavailable" when trying to connect. Other devices work just fine. I've tried deleting the configuration and remaking it multiple times, and that doesn't work.

So, looking at syslog, it seems the DHCP request is timing out. I can connect to the network if I manually set the IP and other settings, but I don't have internet connection through Wifi yet - I think my manual configuration is a little off yet.

Here is lspci:

chrisn@Zircon:~$ lspci | grep WiFi

02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)

And output from lshw -C network

  *-network               

   description: Wireless interface

   product: RTL8188CE 802.11b/g/n WiFi Adapter

   vendor: Realtek Semiconductor Co., Ltd.

   physical id: 0

   bus info: pci@0000:02:00.0

   logical name: wlan0

   version: 01

   serial: 54:04:a6:de:cb:ba

   width: 64 bits

   clock: 33MHz

   capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless

   configuration: broadcast=yes driver=rtl8192ce driverversion=3.11.0-12-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bgn

   resources: irq:16 ioport:d000(size=256) memory:fe500000-fe503fff

This is /var/log/syslog from the point I clicked the "Connect" button to when it gave up.

chrisn@Zircon:~$ sudo tail -f -n0 /var/log/syslog

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Activation (wlan0) starting connection 'Diamond'

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> (wlan0): device state change: disconnected -> prepare (reason 'none') [30 40 0]

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0]

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Activation (wlan0/wireless): access point 'Diamond' has security, but secrets are required.

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> (wlan0): device state change: config -> need-auth (reason 'none') [50 60 0]

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> (wlan0): device state change: need-auth -> prepare (reason 'none') [60 40 0]

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0]

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Activation (wlan0/wireless): connection 'Diamond' has security, and secrets exist.  No new secrets needed.

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Config: added 'ssid' value 'Diamond'

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Config: added 'scan_ssid' value '1'

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Config: added 'key_mgmt' value 'NONE'

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Config: added 'auth_alg' value 'OPEN'

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Config: added 'wep_key0' value '<omitted>'

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Config: added 'wep_tx_keyidx' value '0'

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.

Oct 19 14:03:05 Zircon NetworkManager[909]: <info> Config: set interface ap_scan to 1

Oct 19 14:03:06 Zircon NetworkManager[909]: <info> (wlan0): supplicant interface state: disconnected -> scanning

Oct 19 14:03:07 Zircon wpa_supplicant[1415]: wlan0: SME: Trying to authenticate with 00:1f:33:e9:99:8a (SSID='Diamond' freq=2437 MHz)

Oct 19 14:03:07 Zircon kernel: [ 1911.641635] wlan0: authenticate with 00:1f:33:e9:99:8a

Oct 19 14:03:07 Zircon NetworkManager[909]: <info> (wlan0): supplicant interface state: scanning -> authenticating

Oct 19 14:03:07 Zircon kernel: [ 1911.651176] wlan0: send auth to 00:1f:33:e9:99:8a (try 1/3)

Oct 19 14:03:07 Zircon wpa_supplicant[1415]: wlan0: Trying to associate with 00:1f:33:e9:99:8a (SSID='Diamond' freq=2437 MHz)

Oct 19 14:03:07 Zircon kernel: [ 1911.654471] wlan0: authenticated

Oct 19 14:03:07 Zircon kernel: [ 1911.654701] rtl8192ce 0000:02:00.0 wlan0: disabling HT/VHT due to WEP/TKIP use

Oct 19 14:03:07 Zircon kernel: [ 1911.656855] wlan0: associate with 00:1f:33:e9:99:8a (try 1/3)

Oct 19 14:03:07 Zircon NetworkManager[909]: <info> (wlan0): supplicant interface state: authenticating -> associating

Oct 19 14:03:07 Zircon wpa_supplicant[1415]: wlan0: Associated with 00:1f:33:e9:99:8a

Oct 19 14:03:07 Zircon wpa_supplicant[1415]: wlan0: CTRL-EVENT-CONNECTED - Connection to 00:1f:33:e9:99:8a completed (reauth) [id=0 id_str=]

Oct 19 14:03:07 Zircon kernel: [ 1911.660841] wlan0: RX AssocResp from 00:1f:33:e9:99:8a (capab=0x431 status=0 aid=4)

Oct 19 14:03:07 Zircon kernel: [ 1911.660951] wlan0: associated

Oct 19 14:03:07 Zircon kernel: [ 1911.661236] cfg80211: Calling CRDA for country: US

Oct 19 14:03:07 Zircon NetworkManager[909]: <info> (wlan0): supplicant interface state: associating -> completed

Oct 19 14:03:07 Zircon NetworkManager[909]: <info> Activation (wlan0/wireless) Stage 2 of 5 (Device Configure) successful.  Connected to wireless network 'Diamond'.

Oct 19 14:03:07 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) scheduled.

Oct 19 14:03:07 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) started...

Oct 19 14:03:07 Zircon NetworkManager[909]: <info> (wlan0): device state change: config -> ip-config (reason 'none') [50 70 0]

Oct 19 14:03:07 Zircon NetworkManager[909]: <info> Activation (wlan0) Beginning DHCPv4 transaction (timeout in 45 seconds)

Oct 19 14:03:07 Zircon kernel: [ 1911.667519] cfg80211: Regulatory domain changed to country: US

Oct 19 14:03:07 Zircon kernel: [ 1911.667525] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)

Oct 19 14:03:07 Zircon kernel: [ 1911.667530] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)

Oct 19 14:03:07 Zircon kernel: [ 1911.667534] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)

Oct 19 14:03:07 Zircon kernel: [ 1911.667538] cfg80211:   (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

Oct 19 14:03:07 Zircon kernel: [ 1911.667541] cfg80211:   (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

Oct 19 14:03:07 Zircon kernel: [ 1911.667545] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

Oct 19 14:03:07 Zircon kernel: [ 1911.667548] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)

Oct 19 14:03:07 Zircon kernel: [ 1911.667551] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm)

Oct 19 14:03:07 Zircon NetworkManager[909]: <info> dhclient started with pid 8714

Oct 19 14:03:07 Zircon NetworkManager[909]: <info> Activation (wlan0) Beginning IP6 addrconf.

Oct 19 14:03:07 Zircon avahi-daemon[944]: Withdrawing address record for fe80::5604:a6ff:fede:cbba on wlan0.

Oct 19 14:03:07 Zircon avahi-daemon[944]: Leaving mDNS multicast group on interface wlan0.IPv6 with address fe80::5604:a6ff:fede:cbba.

Oct 19 14:03:07 Zircon avahi-daemon[944]: Interface wlan0.IPv6 no longer relevant for mDNS.

Oct 19 14:03:07 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) complete.

Oct 19 14:03:07 Zircon dhclient: Internet Systems Consortium DHCP Client 4.2.4

Oct 19 14:03:07 Zircon dhclient: Copyright 2004-2012 Internet Systems Consortium.

Oct 19 14:03:07 Zircon dhclient: All rights reserved.

Oct 19 14:03:07 Zircon dhclient: For info, please visit https://www.isc.org/software/dhcp/

Oct 19 14:03:07 Zircon dhclient: 

Oct 19 14:03:07 Zircon NetworkManager[909]: <info> (wlan0): DHCPv4 state changed nbi -> preinit

Oct 19 14:03:07 Zircon dhclient: Listening on LPF/wlan0/54:04:a6:de:cb:ba

Oct 19 14:03:07 Zircon dhclient: Sending on   LPF/wlan0/54:04:a6:de:cb:ba

Oct 19 14:03:07 Zircon dhclient: Sending on   Socket/fallback

Oct 19 14:03:07 Zircon dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3 (xid=0x6713caf2)

Oct 19 14:03:07 Zircon kernel: [ 1911.918587] wlan0: Limiting TX power to 27 (27 - 0) dBm as advertised by 00:1f:33:e9:99:8a

Oct 19 14:03:08 Zircon avahi-daemon[944]: Joining mDNS multicast group on interface wlan0.IPv6 with address fe80::5604:a6ff:fede:cbba.

Oct 19 14:03:08 Zircon avahi-daemon[944]: New relevant interface wlan0.IPv6 for mDNS.

Oct 19 14:03:08 Zircon avahi-daemon[944]: Registering new address record for fe80::5604:a6ff:fede:cbba on wlan0.*.

Oct 19 14:03:10 Zircon dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7 (xid=0x6713caf2)

Oct 19 14:03:17 Zircon dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 15 (xid=0x6713caf2)

Oct 19 14:03:27 Zircon NetworkManager[909]: <info> (wlan0): IP6 addrconf timed out or failed.

Oct 19 14:03:27 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...

Oct 19 14:03:27 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) started...

Oct 19 14:03:27 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) complete.

Oct 19 14:03:32 Zircon dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10 (xid=0x6713caf2)

Oct 19 14:03:42 Zircon dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 14 (xid=0x6713caf2)

Oct 19 14:03:52 Zircon NetworkManager[909]: <warn> (wlan0): DHCPv4 request timed out.

Oct 19 14:03:52 Zircon NetworkManager[909]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 8714

Oct 19 14:03:52 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 4 of 5 (IPv4 Configure Timeout) scheduled...

Oct 19 14:03:52 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 4 of 5 (IPv4 Configure Timeout) started...

Oct 19 14:03:52 Zircon NetworkManager[909]: <info> (wlan0): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]

Oct 19 14:03:52 Zircon NetworkManager[909]: <info> Marking connection 'Diamond' invalid.

Oct 19 14:03:52 Zircon NetworkManager[909]: <warn> Activation (wlan0) failed for connection 'Diamond'

Oct 19 14:03:52 Zircon NetworkManager[909]: <info> Activation (wlan0) Stage 4 of 5 (IPv4 Configure Timeout) complete.

Oct 19 14:03:52 Zircon NetworkManager[909]: <info> (wlan0): device state change: failed -> disconnected (reason 'none') [120 30 0]

Oct 19 14:03:52 Zircon NetworkManager[909]: <info> (wlan0): deactivating device (reason 'none') [0]

Oct 19 14:03:52 Zircon kernel: [ 1957.444402] wlan0: deauthenticating from 00:1f:33:e9:99:8a by local choice (reason=3)

Oct 19 14:03:52 Zircon wpa_supplicant[1415]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3

Oct 19 14:03:52 Zircon NetworkManager[909]: <info> (wlan0): supplicant interface state: completed -> disconnected

Oct 19 14:03:52 Zircon kernel: [ 1957.468579] cfg80211: Calling CRDA to update world regulatory domain

Oct 19 14:03:52 Zircon kernel: [ 1957.475397] cfg80211: World regulatory domain updated:

Oct 19 14:03:52 Zircon kernel: [ 1957.475404] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)

Oct 19 14:03:52 Zircon kernel: [ 1957.475410] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

Oct 19 14:03:52 Zircon kernel: [ 1957.475414] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

Oct 19 14:03:52 Zircon kernel: [ 1957.475419] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)

Oct 19 14:03:52 Zircon kernel: [ 1957.475423] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

Oct 19 14:03:52 Zircon kernel: [ 1957.475427] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

Anyone have any ideas?