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#1 12.01.2020 12:12:49

Schneemann
Gast

WLAN Verbindung funktioniert in einem Netz plötzlich nicht mehr

Moin moin,

folgendes Problem muss ich seit dem neuen Jahr leider in einem spezifischen WLAN-Netzwerk feststellen. Ich war am 21.12.2019 zuletzt in diesem Netzwerk und alles funktionierte. Ab 06.01.2020 habe ich Probleme mich mit meinem Laptop mit diesem Netz zu verbinden. Mit dem Smartphone klappt es ohne Probleme.

Leider habe ich keine Informationen darüber, ob ich sich in dem Netzwerk etwas geändert hat aber da es mit dem Smartphone funktioniert vermute ich mal ein Problem bei meinem Laptop. Wenn ich mir die Daten im Log ansehe, dann scheint offenbar ein Problem mit dhcp4 zu existieren, jedoch konnte ich bislang keine genaueren Anhaltspunkte finden. Daher ersuche ich hier nun jmd. um eine schlaue Idee.

Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6294] device (wlp3s0): Activation: starting connection '*****' (e5f39f8e-db19-4b3d-9486-19af4f383b15)
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6296] device (wlp3s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6305] manager: NetworkManager state is now CONNECTING
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6338] device (wlp3s0): set-hw-addr: reset MAC address to ***** (preserve)
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6405] device (wlp3s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6412] device (wlp3s0): Activation: (wifi) access point '*****' has security, but secrets are required.
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6413] device (wlp3s0): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed')
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6583] device (wlp3s0): supplicant interface state: ready -> disabled
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6584] device (p2p-dev-wlp3s0): supplicant management interface state: ready -> disabled
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6652] device (wlp3s0): supplicant interface state: disabled -> inactive
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6653] device (p2p-dev-wlp3s0): supplicant management interface state: disabled -> inactive
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6708] device (wlp3s0): state change: need-auth -> prepare (reason 'none', sys-iface-state: 'managed')
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6717] device (wlp3s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6724] device (wlp3s0): Activation: (wifi) connection '*****' has security, and secrets exist.  No new secrets needed.
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6725] Config: added 'ssid' value '*****'
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6725] Config: added 'scan_ssid' value '1'
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6725] Config: added 'bgscan' value 'simple:30:-65:300'
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6726] Config: added 'key_mgmt' value 'WPA-EAP WPA-EAP-SHA256 FT-EAP'
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6726] Config: added 'password' value '<hidden>'
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6726] Config: added 'eap' value 'PEAP'
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6726] Config: added 'fragment_size' value '1266'
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6727] Config: added 'phase2' value 'auth=MSCHAPV2'
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6727] Config: added 'ca_cert' value '/usr/share/ca-certificates/trust-source/anchors/telesec.crt'
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6727] Config: added 'domain_suffix_match' value '*****'
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6728] Config: added 'identity' value '*****'
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6728] Config: added 'proactive_key_caching' value '1'
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6851] device (wlp3s0): supplicant interface state: inactive -> scanning
Jan 10 12:28:56 thinkpad NetworkManager[909]: <info>  [1578655736.6852] device (p2p-dev-wlp3s0): supplicant management interface state: inactive -> scanning
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.3715] device (wlp3s0): supplicant interface state: scanning -> authenticating
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.3716] device (p2p-dev-wlp3s0): supplicant management interface state: scanning -> authenticating
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.3948] device (wlp3s0): supplicant interface state: authenticating -> associating
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.3949] device (p2p-dev-wlp3s0): supplicant management interface state: authenticating -> associating
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.4218] device (wlp3s0): supplicant interface state: associating -> disconnected
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.4219] device (p2p-dev-wlp3s0): supplicant management interface state: associating -> disconnected
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.5222] device (wlp3s0): supplicant interface state: disconnected -> scanning
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.5223] device (p2p-dev-wlp3s0): supplicant management interface state: disconnected -> scanning
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.7175] device (wlp3s0): supplicant interface state: scanning -> authenticating
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.7176] device (p2p-dev-wlp3s0): supplicant management interface state: scanning -> authenticating
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.7343] device (wlp3s0): supplicant interface state: authenticating -> associating
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.7344] device (p2p-dev-wlp3s0): supplicant management interface state: authenticating -> associating
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.7362] device (wlp3s0): supplicant interface state: associating -> associated
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.7363] device (p2p-dev-wlp3s0): supplicant management interface state: associating -> associated
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.8169] device (wlp3s0): supplicant interface state: associated -> completed
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.8169] device (wlp3s0): Activation: (wifi) Stage 2 of 5 (Device Configure) successful. Connected to wireless network "*****"
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.8170] device (p2p-dev-wlp3s0): supplicant management interface state: associated -> completed
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.8174] device (wlp3s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.8183] dhcp4 (wlp3s0): activation: beginning transaction (timeout in 45 seconds)
Jan 10 12:28:57 thinkpad NetworkManager[909]: <info>  [1578655737.9040] dhcp4 (wlp3s0): state changed unknown -> fail
Jan 10 12:29:29 thinkpad NetworkManager[909]: <info>  [1578655769.9118] device (wlp3s0): state change: ip-config -> failed (reason 'ip-config-unavailable', sys-iface-state: 'managed')
Jan 10 12:29:29 thinkpad NetworkManager[909]: <info>  [1578655769.9132] manager: NetworkManager state is now DISCONNECTED
Jan 10 12:29:29 thinkpad NetworkManager[909]: <warn>  [1578655769.9175] device (wlp3s0): Activation: failed for connection '*****'
Jan 10 12:29:29 thinkpad NetworkManager[909]: <info>  [1578655769.9188] device (wlp3s0): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
Jan 10 12:29:29 thinkpad NetworkManager[909]: <info>  [1578655769.9468] dhcp4 (wlp3s0): canceled DHCP transaction
Jan 10 12:29:29 thinkpad NetworkManager[909]: <info>  [1578655769.9469] dhcp4 (wlp3s0): state changed fail -> done
Jan 10 12:29:29 thinkpad NetworkManager[909]: <info>  [1578655769.9683] device (wlp3s0): set-hw-addr: set MAC address to ***** (scanning)
Jan 10 12:29:29 thinkpad NetworkManager[909]: <warn>  [1578655769.9795] sup-iface[0x55f098681b10,wlp3s0]: connection disconnected (reason -3)
Jan 10 12:29:29 thinkpad NetworkManager[909]: <info>  [1578655769.9799] device (wlp3s0): supplicant interface state: completed -> disconnected
Jan 10 12:29:29 thinkpad NetworkManager[909]: <info>  [1578655769.9801] device (p2p-dev-wlp3s0): supplicant management interface state: completed -> disconnected
Jan 10 12:29:30 thinkpad NetworkManager[909]: <info>  [1578655770.9743] policy: auto-activating connection '*****' (e5f39f8e-db19-4b3d-9486-19af4f383b15)

#2 12.01.2020 13:03:18

chepaz
Mitglied

Re: WLAN Verbindung funktioniert in einem Netz plötzlich nicht mehr

Eine schlaue Antwort fällt mir bei deinem Log jetzt nicht ein wink

Aber dem Networkmanager einen anderen DHCP-client testweise beizubringen wäre eine Möglichkeit. Z.B.:

$ cat /etc/NetworkManager/conf.d/dhcp-client.conf 
[main]
dhcp=dhcpcd

Edit:
Der entsprechende DHCP-client muss natürlich auch vorher installiert werden.

Beitrag geändert von chepaz (12.01.2020 13:05:36)

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#3 12.01.2020 18:10:54

Schneemann
Gast

Re: WLAN Verbindung funktioniert in einem Netz plötzlich nicht mehr

Das könnte ich mal versuchen, wenn ich morgen wieder im Netzwerk bin.

Mich wundert nur, dass jedes andere WLAN-Netz funktioniert. Ebenfalls immer mit DHCP.

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