Hello, please need help.
I installed on my notebook Lenovo ThinkPad E540 with Realtek RTL8723BE wireless card Open Suse 13.1. I am using Gnome DM. No wireless device was after installation identified, but I solved this by installing kernel 3.17. Then I needed to download firmware and add it to kernel directory to make it work. Then wifi was connected and I was happy. Till the time, when I guess, that the wireless network is accidentally stopping to work. It could be minutes, or hours - one never knows. Everything seems to be OK, applet showing connected status, but no internet connection. It did not help wpa_supplicant restart, IPv6 switch off, even additional swenc or swcrypto params adding to modprobe for device loading. When 13.2 came, I hoped it will solve my problem, but even network running with wicked did not help. I switched back to NetworkManager and still can not find the reason of the behaviour. When I try to reconnect with nm-applet, it is trying to connect, then requesting password, no matter, it is saved and working after restart. It seems like it is not able to communicate or send password to AP. When I was trying something like ifup, I was told something like “No network” - I can not remember now exactly.
Please help to find the reason, to solve the behaviour or at least to find the way how to restart network to be able to run without restart of computer. rcnetwork restart or wpa_supplicant service restart did not help.
After the connection stopped working I tried to remove and reinstall rtl8723be device and this is what happend.
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matus-lenovo:/etc/init.d # modprobe -v -r rtl8723be
rmmod rtl8723be
rmmod rtl_pci
rmmod rtlwifi
rmmod mac80211
rmmod cfg80211
rmmod rtl8723_common
rmmod btcoexist
matus-lenovo:/etc/init.d # modprobe -v rtl8723be
insmod /lib/modules/3.17.2-1.g1afb260-desktop/kernel/net/wireless/cfg80211.ko
insmod /lib/modules/3.17.2-1.g1afb260-desktop/kernel/net/mac80211/mac80211.ko
insmod /lib/modules/3.17.2-1.g1afb260-desktop/kernel/drivers/net/wireless/rtlwifi/rtlwifi.ko
insmod /lib/modules/3.17.2-1.g1afb260-desktop/kernel/drivers/net/wireless/rtlwifi/rtl_pci.ko
insmod /lib/modules/3.17.2-1.g1afb260-desktop/kernel/drivers/net/wireless/rtlwifi/rtl8723com/rtl8723-common.ko
insmod /lib/modules/3.17.2-1.g1afb260-desktop/kernel/drivers/net/wireless/rtlwifi/btcoexist/btcoexist.ko
install /sbin/modprobe --ignore-install rtl8723be; echo '10ec b723 17aa b728' > '/sys/bus/pci/drivers/rtl8723be/new_id' swenc=1
insmod /lib/modules/3.17.2-1.g1afb260-desktop/kernel/drivers/net/wireless/rtlwifi/rtl8723be/rtl8723be.ko swenc=1
sh: riadok 0: echo: chyba zapisovania: Súbor existuje
modprobe: ERROR: Error running install command for rtl8723be
modprobe: ERROR: could not insert 'rtl8723be': Operation not permitted
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after modprobe NetworkManager log
2014-11-09T20:55:55.273444+01:00 matus-lenovo NetworkManager[2617]: <info> Activation (wlp4s0) starting connection 'bah_12_lan1'
2014-11-09T20:55:55.273890+01:00 matus-lenovo NetworkManager[2617]: <info> Activation (wlp4s0) Stage 1 of 5 (Device Prepare) scheduled...
2014-11-09T20:55:55.274220+01:00 matus-lenovo NetworkManager[2617]: <info> Activation (wlp4s0) Stage 1 of 5 (Device Prepare) started...
2014-11-09T20:55:55.274573+01:00 matus-lenovo NetworkManager[2617]: <info> (wlp4s0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
2014-11-09T20:55:55.274912+01:00 matus-lenovo NetworkManager[2617]: <info> NetworkManager state is now CONNECTING
2014-11-09T20:55:55.275202+01:00 matus-lenovo NetworkManager[2617]: <info> Activation (wlp4s0) Stage 2 of 5 (Device Configure) scheduled...
2014-11-09T20:55:55.275490+01:00 matus-lenovo NetworkManager[2617]: <info> Activation (wlp4s0) Stage 1 of 5 (Device Prepare) complete.
2014-11-09T20:55:55.275763+01:00 matus-lenovo NetworkManager[2617]: <info> Activation (wlp4s0) Stage 2 of 5 (Device Configure) starting...
2014-11-09T20:55:55.276030+01:00 matus-lenovo NetworkManager[2617]: <info> (wlp4s0): device state change: prepare -> config (reason 'none') [40 50 0]
2014-11-09T20:55:55.276307+01:00 matus-lenovo NetworkManager[2617]: <info> Activation (wlp4s0/wireless): access point 'bah_12_lan1' has security, but secrets are required.
2014-11-09T20:55:55.276576+01:00 matus-lenovo NetworkManager[2617]: <info> (wlp4s0): device state change: config -> need-auth (reason 'none') [50 60 0]
2014-11-09T20:55:55.276843+01:00 matus-lenovo NetworkManager[2617]: <info> Activation (wlp4s0) Stage 2 of 5 (Device Configure) complete.
2014-11-09T20:55:55.277105+01:00 matus-lenovo NetworkManager[2617]: <info> Activation (wlp4s0) Stage 1 of 5 (Device Prepare) scheduled...
2014-11-09T20:55:55.278035+01:00 matus-lenovo NetworkManager[2617]: <info> Activation (wlp4s0) Stage 1 of 5 (Device Prepare) started...
2014-11-09T20:55:55.278428+01:00 matus-lenovo NetworkManager[2617]: <info> (wlp4s0): device state change: need-auth -> prepare (reason 'none') [60 40 0]
2014-11-09T20:55:55.278748+01:00 matus-lenovo NetworkManager[2617]: <info> Activation (wlp4s0) Stage 2 of 5 (Device Configure) scheduled...
2014-11-09T20:55:55.279068+01:00 matus-lenovo NetworkManager[2617]: <info> Activation (wlp4s0) Stage 1 of 5 (Device Prepare) complete.
2014-11-09T20:55:55.279359+01:00 matus-lenovo NetworkManager[2617]: <info> Activation (wlp4s0) Stage 2 of 5 (Device Configure) starting...
2014-11-09T20:55:55.279496+01:00 matus-lenovo NetworkManager[2617]: <info> (wlp4s0): device state change: prepare -> config (reason 'none') [40 50 0]
2014-11-09T20:55:55.279615+01:00 matus-lenovo NetworkManager[2617]: <info> Activation (wlp4s0/wireless): connection 'bah_12_lan1' has security, and secrets exist. No new secrets needed.
2014-11-09T20:55:55.279783+01:00 matus-lenovo NetworkManager[2617]: <info> Config: added 'ssid' value 'bah_12_lan1'
2014-11-09T20:55:55.279905+01:00 matus-lenovo NetworkManager[2617]: <info> Config: added 'scan_ssid' value '1'
2014-11-09T20:55:55.280023+01:00 matus-lenovo NetworkManager[2617]: <info> Config: added 'key_mgmt' value 'WPA-PSK'
2014-11-09T20:55:55.280208+01:00 matus-lenovo NetworkManager[2617]: <info> Config: added 'psk' value '<omitted>'
2014-11-09T20:55:55.280353+01:00 matus-lenovo NetworkManager[2617]: <info> Activation (wlp4s0) Stage 2 of 5 (Device Configure) complete.
2014-11-09T20:55:55.290898+01:00 matus-lenovo NetworkManager[2617]: <info> Config: set interface ap_scan to 1
2014-11-09T20:55:55.302256+01:00 matus-lenovo NetworkManager[2617]: <info> (wlp4s0): supplicant interface state: disconnected -> scanning
2014-11-09T20:56:05.313711+01:00 matus-lenovo NetworkManager[2617]: <info> (wlp4s0): supplicant interface state: scanning -> authenticating
2014-11-09T20:56:10.332118+01:00 matus-lenovo NetworkManager[2617]: <info> (wlp4s0): supplicant interface state: authenticating -> disconnected
2014-11-09T20:56:11.333003+01:00 matus-lenovo NetworkManager[2617]: <info> (wlp4s0): supplicant interface state: disconnected -> scanning
2014-11-09T20:56:20.739802+01:00 matus-lenovo NetworkManager[2617]: <warn> Activation (wlp4s0/wireless): association took too long, failing activation.
2014-11-09T20:56:20.740381+01:00 matus-lenovo NetworkManager[2617]: <info> (wlp4s0): device state change: config -> failed (reason 'ssid-not-found') [50 120 53]
2014-11-09T20:56:20.740860+01:00 matus-lenovo NetworkManager[2617]: <info> NetworkManager state is now DISCONNECTED
2014-11-09T20:56:20.741319+01:00 matus-lenovo NetworkManager[2617]: <warn> Activation (wlp4s0) failed for connection 'bah_12_lan1'
2014-11-09T20:56:20.741802+01:00 matus-lenovo NetworkManager[2617]: <info> (wlp4s0): device state change: failed -> disconnected (reason 'none') [120 30 0]
2014-11-09T20:56:20.742207+01:00 matus-lenovo NetworkManager[2617]: <info> (wlp4s0): deactivating device (reason 'none') [0]
2014-11-09T20:56:20.745054+01:00 matus-lenovo NetworkManager[2617]: <info> (wlp4s0): supplicant interface state: scanning -> disconnected
2014-11-09T20:56:20.747481+01:00 matus-lenovo NetworkManager[2617]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.
2014-11-09T20:56:20.747984+01:00 matus-lenovo NetworkManager[2617]: <warn> Could not get scan request result: Scan request rejected
after modprobe wpa_supplicant log
wlp4s0: CTRL-EVENT-SCAN-STARTED
wlp4s0: CTRL-EVENT-SCAN-STARTED
wlp4s0: CTRL-EVENT-SCAN-STARTED
wlp4s0: CTRL-EVENT-SCAN-STARTED
wlp4s0: CTRL-EVENT-SCAN-STARTED
wlp4s0: CTRL-EVENT-SCAN-STARTED
wlp4s0: CTRL-EVENT-SCAN-STARTED
wlp4s0: CTRL-EVENT-SCAN-STARTED
wlp4s0: CTRL-EVENT-SCAN-STARTED
wlp4s0: SME: Trying to authenticate with 00:24:01:8d:2a:4e (SSID='bah_12_lan1' freq=2462 MHz)
wlp4s0: SME: Trying to authenticate with 00:24:01:8d:2a:4e (SSID='bah_12_lan1' freq=2462 MHz)
wlp4s0: SME: Deauth request to the driver failed
wlp4s0: Reject scan trigger since one is already pending
wlp4s0: Reject scan trigger since one is already pending
One time I found in log this:
[32156.142732] wlp4s0: deauthenticated from c0:c1:c0:78:62:5a (Reason: 16=GROUP_KEY_HANDSHAKE_TIMEOUT)
[32161.897832] wlp4s0: authenticate with c0:c1:c0:78:62:5a
[32161.916732] wlp4s0: send auth to c0:c1:c0:78:62:5a (try 1/3)
[32161.918270] wlp4s0: authenticated
[32161.918976] wlp4s0: associate with c0:c1:c0:78:62:5a (try 1/3)
[32161.924920] wlp4s0: RX AssocResp from c0:c1:c0:78:62:5a (capab=0x411 status=0 aid=3)
[32161.925121] wlp4s0: associated
[32169.918650] wlp4s0: deauthenticated from c0:c1:c0:78:62:5a (Reason: 15=4WAY_HANDSHAKE_TIMEOUT)
[32312.820538] wlp4s0: authenticate with c0:c1:c0:78:62:5a
[32312.840705] wlp4s0: send auth to c0:c1:c0:78:62:5a (try 1/3)
[32312.842211] wlp4s0: authenticated
[32312.843093] wlp4s0: associate with c0:c1:c0:78:62:5a (try 1/3)
[32312.846783] wlp4s0: RX AssocResp from c0:c1:c0:78:62:5a (capab=0x411 status=0 aid=3)
[32312.846975] wlp4s0: associated
[32320.843804] wlp4s0: deauthenticated from c0:c1:c0:78:62:5a (Reason: 15=4WAY_HANDSHAKE_TIMEOUT)
Please help. I do not want to go back to Windows.
Thank you.