Hallo zusammen. Ich versuch gerade von Windows auf Ubuntu umzusteigen, nur fällt mir das leider alles andere als einfach.Das nervigste von allem ist das Wlan. Nach einem Neustart vom Laptop funktioniert es immer einwandfrei. Aber leider nur für ca 5 min und dann bricht jedes mal die Verbindung wieder ab. Die Infos sollte man bei solch einem Fall immer noch geben.( hab ich zumindest so gelesen )
uname -a : Linux paul-PC 3.16.0-29-generic #39-Ubuntu SMP Mon Dec 15 22:27:29 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
lspci -nnk | grep -i net -A2 : 01:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723] Subsystem: Lenovo Device [17aa:b736] Kernel driver in use: rtl8723be
iwlist chan : wlan0 13 channels in total; available frequencies : Channel 01 : 2.412 GHz Channel 02 : 2.417 GHz Channel 03 : 2.422 GHz Channel 04 : 2.427 GHz Channel 05 : 2.432 GHz Channel 06 : 2.437 GHz Channel 07 : 2.442 GHz Channel 08 : 2.447 GHz Channel 09 : 2.452 GHz Channel 10 : 2.457 GHz Channel 11 : 2.462 GHz Channel 12 : 2.467 GHz Channel 13 : 2.472 GHz lo no frequency information.
sudo iwlist scan : wlan0 Failed to read scan data : Resource temporarily unavailable lo Interface doesn't support scanning.
egrep -i 'net|eth|wlan|firm|reason' /var/log/syslog : Jan 30 23:06:24 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started... Jan 30 23:06:24 paul-PC NetworkManager[1088]: <info> (wlan0): device state change: need-auth -> prepare (reason 'none') [60 40 0] Jan 30 23:06:24 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled... Jan 30 23:06:24 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete. Jan 30 23:06:24 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting... Jan 30 23:06:24 paul-PC NetworkManager[1088]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0] Jan 30 23:06:24 paul-PC NetworkManager[1088]: <info> Activation (wlan0/wireless): connection 'PLBM' has security, and secrets exist. No new secrets needed. Jan 30 23:06:24 paul-PC NetworkManager[1088]: <info> Config: added 'ssid' value 'PLBM' Jan 30 23:06:24 paul-PC NetworkManager[1088]: <info> Config: added 'scan_ssid' value '1' Jan 30 23:06:24 paul-PC NetworkManager[1088]: <info> Config: added 'key_mgmt' value 'WPA-PSK' Jan 30 23:06:24 paul-PC NetworkManager[1088]: <info> Config: added 'psk' value '<omitted>' Jan 30 23:06:24 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete. Jan 30 23:06:24 paul-PC NetworkManager[1088]: <info> Config: set interface ap_scan to 1 Jan 30 23:06:24 paul-PC NetworkManager[1088]: <info> (wlan0): supplicant interface state: disconnected -> scanning Jan 30 23:06:49 paul-PC NetworkManager[1088]: <warn> Activation (wlan0/wireless): association took too long, failing activation. Jan 30 23:06:49 paul-PC NetworkManager[1088]: <info> (wlan0): device state change: config -> failed (reason 'SSID not found') [50 120 53] Jan 30 23:06:49 paul-PC NetworkManager[1088]: <info> NetworkManager state is now DISCONNECTED Jan 30 23:06:49 paul-PC NetworkManager[1088]: <info> Marking connection 'PLBM' invalid. Jan 30 23:06:49 paul-PC NetworkManager[1088]: <warn> Activation (wlan0) failed for connection 'PLBM' Jan 30 23:06:49 paul-PC NetworkManager[1088]: <info> (wlan0): device state change: failed -> disconnected (reason 'none') [120 30 0] Jan 30 23:06:49 paul-PC NetworkManager[1088]: <info> (wlan0): deactivating device (reason 'none') [0] Jan 30 23:06:49 paul-PC NetworkManager[1088]: <info> (wlan0): supplicant interface state: scanning -> disconnected Jan 30 23:06:49 paul-PC NetworkManager[1088]: <warn> Couldn't disconnect supplicant interface: This interface is not connected. Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Auto-activating connection 'PLBM'. Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Activation (wlan0) starting connection 'PLBM' Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> (wlan0): device state change: disconnected -> prepare (reason 'none') [30 40 0] Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> NetworkManager state is now CONNECTING Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled... Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started... Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled... Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete. Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting... Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0] Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Activation (wlan0/wireless): access point 'PLBM' has security, but secrets are required. Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> (wlan0): device state change: config -> need-auth (reason 'none') [50 60 0] Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete. Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled... Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started... Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> (wlan0): device state change: need-auth -> prepare (reason 'none') [60 40 0] Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled... Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete. Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting... Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0] Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Activation (wlan0/wireless): connection 'PLBM' has security, and secrets exist. No new secrets needed. Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Config: added 'ssid' value 'PLBM' Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Config: added 'scan_ssid' value '1' Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Config: added 'key_mgmt' value 'WPA-PSK' Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Config: added 'psk' value '<omitted>' Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete. Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> Config: set interface ap_scan to 1 Jan 30 23:11:49 paul-PC NetworkManager[1088]: <info> (wlan0): supplicant interface state: disconnected -> scanning Jan 30 23:12:14 paul-PC NetworkManager[1088]: <warn> Activation (wlan0/wireless): association took too long, failing activation. Jan 30 23:12:14 paul-PC NetworkManager[1088]: <info> (wlan0): device state change: config -> failed (reason 'SSID not found') [50 120 53] Jan 30 23:12:14 paul-PC NetworkManager[1088]: <info> NetworkManager state is now DISCONNECTED Jan 30 23:12:14 paul-PC NetworkManager[1088]: <warn> Activation (wlan0) failed for connection 'PLBM' Jan 30 23:12:14 paul-PC NetworkManager[1088]: <info> (wlan0): device state change: failed -> disconnected (reason 'none') [120 30 0] Jan 30 23:12:14 paul-PC NetworkManager[1088]: <info> (wlan0): deactivating device (reason 'none') [0] Jan 30 23:12:14 paul-PC NetworkManager[1088]: <info> (wlan0): supplicant interface state: scanning -> disconnected Jan 30 23:12:14 paul-PC NetworkManager[1088]: <warn> Couldn't disconnect supplicant interface: This interface is not connected. Jan 30 23:12:17 paul-PC NetworkManager[1088]: <info> Auto-activating connection 'PLBM'. Jan 30 23:12:17 paul-PC NetworkManager[1088]: <info> Activation (wlan0) starting connection 'PLBM' Jan 30 23:12:17 paul-PC NetworkManager[1088]: <info> (wlan0): device state change: disconnected -> prepare (reason 'none') [30 40 0] Jan 30 23:12:17 paul-PC NetworkManager[1088]: <info> NetworkManager state is now CONNECTING Jan 30 23:12:17 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled... Jan 30 23:12:17 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started... Jan 30 23:12:17 paul-PC NetworkManager[1088]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
Würde mich sehr über Hilfe freuen!! MfG Kontrast