I'm having this issue as well. Connection is intermittent with model RTL8192CU (Belkin n300 nano). It works sometimes but it's slow to connect and it takes a while to connect.
➜ ~ lsusb Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 003 Device 002: ID 050d:2103 Belkin Components F7D2102 802.11n N300 Micro Wireless Adapter v3000 [Realtek RTL8192CU] Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 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 001 Device 004: ID 0bda:5705 Realtek Semiconductor Corp. Bus 001 Device 006: ID 03eb:880a Atmel Corp. ➜ ~ uname -a Linux chris-S500CA 3.8.0-22-generic #33-Ubuntu SMP Thu May 16 15:17:14 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux ➜ ~ tail /var/log/dmesg [ 19.832892] type=1400 audit(1369952938.532:7): apparmor="STATUS" operation="profile_load" name="/usr/lib/x86_64-linux-gnu/lightdm-remote-session-freerdp/freerdp-session-wrapper" pid=1222 comm="apparmor_parser" [ 19.833222] type=1400 audit(1369952938.536:8): apparmor="STATUS" operation="profile_load" name="/usr/lib/x86_64-linux-gnu/lightdm-remote-session-freerdp/freerdp-session-wrapper//chromium_browser" pid=1222 comm="apparmor_parser" [ 19.833580] type=1400 audit(1369952938.536:9): apparmor="STATUS" operation="profile_load" name="/usr/lib/lightdm/lightdm/lightdm-guest-session-wrapper" pid=1221 comm="apparmor_parser" [ 19.833703] type=1400 audit(1369952938.536:10): apparmor="STATUS" operation="profile_load" name="/usr/lib/x86_64-linux-gnu/lightdm-remote-session-uccsconfigure/uccsconfigure-session-wrapper" pid=1223 comm="apparmor_parser" [ 19.833909] type=1400 audit(1369952938.536:11): apparmor="STATUS" operation="profile_load" name="/usr/lib/lightdm/lightdm/lightdm-guest-session-wrapper//chromium_browser" pid=1221 comm="apparmor_parser" [ 19.834032] type=1400 audit(1369952938.536:12): apparmor="STATUS" operation="profile_load" name="/usr/lib/x86_64-linux-gnu/lightdm-remote-session-uccsconfigure/uccsconfigure-session-wrapper//chromium_browser" pid=1223 comm="apparmor_parser" [ 19.835481] type=1400 audit(1369952938.536:13): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=1224 comm="apparmor_parser" [ 19.835918] type=1400 audit(1369952938.536:14): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1224 comm="apparmor_parser" [ 19.836161] type=1400 audit(1369952938.536:15): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=1224 comm="apparmor_parser" [ 19.838041] type=1400 audit(1369952938.540:16): apparmor="STATUS" operation="profile_load" name="/usr/lib/telepathy/mission-control-5" pid=1227 comm="apparmor_parser" ➜ ~ tail /var/log/syslog May 30 19:36:11 chris-S500CA kernel: [ 1448.688383] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm) May 30 19:36:11 chris-S500CA kernel: [ 1448.688388] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm) May 30 19:36:11 chris-S500CA kernel: [ 1448.688391] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) May 30 19:36:11 chris-S500CA kernel: [ 1448.688395] cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) May 30 19:36:11 chris-S500CA kernel: [ 1448.688399] cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) May 30 19:36:11 chris-S500CA kernel: [ 1448.688402] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm) May 30 19:36:11 chris-S500CA wpa_supplicant[1165]: wlan2: WPA: Key negotiation completed with 00:7f:28:4f:79:06 [PTK=CCMP GTK=CCMP] May 30 19:36:11 chris-S500CA wpa_supplicant[1165]: wlan2: CTRL-EVENT-CONNECTED - Connection to 00:7f:28:4f:79:06 completed (reauth) [id=0 id_str=] May 30 19:36:11 chris-S500CA NetworkManager[1146]: <info> (wlan2): supplicant interface state: associated -> completed May 30 19:36:11 chris-S500CA NetworkManager[1146]: <info> (wlan2): roamed from BSSID (none) ((none)) to 00:7F:28:4F:79:06 (D2LD9) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1132381 Title: rtl8192cu drivers very low dl-speed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1132381/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
