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  1. #1
    Utente di HTML.it L'avatar di nicnac
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    Sep 2010
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    37

    network manager si disconnette alla rete

    Ciao a tutto il forum.
    Da parecchio tempo ho problemi di disconnesione wifi con Ubuntu 10.04.
    Ho notato che mi capita in periodi diversi della giornata.
    Mattina,pomeriggio,sera,notte.
    In pratica network manager mi fa apparire la finestra con la chiave WPA e mi chiede di connettermi.
    La connessione l'ho creata in fase di installazione con network-manager e da allora non ho cambiato nulla.
    Chiedevo può essere per una errata configurazione del mulo,in particolare per sovraccarico o per prestazioni scarse della linea?
    Grazie a tutti.
    -= Nic =-
    Amico di Emergency_2013
    Linux registered user # 380338
    Linux registered machine # 283289

  2. #2
    vedi errori da: dmesg o messages?


    lo riconnetti subito?


    hai un router?

  3. #3
    Utente di HTML.it L'avatar di nicnac
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    Sep 2010
    Messaggi
    37
    Originariamente inviato da sacarde
    vedi errori da: dmesg o messages?


    lo riconnetti subito?


    hai un router?
    Allora per dmesg devo guardare quando mi capita giusto??
    No non riesco a riconnettermi per farlo devo riavviare Ubuntu.
    Si il router è un Dlink DSL 2640.
    Ciao e grazie
    -= Nic =-
    Amico di Emergency_2013
    Linux registered user # 380338
    Linux registered machine # 283289

  4. #4
    ma non si riconnette nemmeno se riavvii il servizio network ?

    sudo /etc/init.d/networking restart

  5. #5
    Utente di HTML.it L'avatar di nicnac
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    Sep 2010
    Messaggi
    37
    Originariamente inviato da sacarde
    ma non si riconnette nemmeno se riavvii il servizio network ?

    sudo /etc/init.d/networking restart
    Non ho provato comunque questa notte l'avevo lasciato acceso e alla mattina ho notato che il mulo non scaricava nulla e aveva le freccette arancio.L'ho chiuso e ho provato con thunderbird e non mi scaricava la posta e anche chrome non si collegava a nessuna pagina web.
    Per ripristinare ho riavviato.
    Qua sotto un pezzo del dmesg
    codice:
    [    0.502812] 
    
    [    9.230294] [drm] Initialized drm 1.1.0 20060810
    [    9.251969] cfg80211: World regulatory domain updated:
    [    9.251974] 	(start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
    [    9.251979] 	(2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
    [    9.251983] 	(2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
    [    9.251986] 	(2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
    [    9.251990] 	(5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
    [    9.251994] 	(5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
    [    9.261521] yenta_cardbus 0000:0a:09.0: CardBus bridge found [1025:0102]
    [    9.261550] yenta_cardbus 0000:0a:09.0: Using CSCINT to route CSC interrupts to PCI
    [    9.261553] yenta_cardbus 0000:0a:09.0: Routing CardBus interrupts to PCI
    [    9.261561] yenta_cardbus 0000:0a:09.0: TI: mfunc 0x01321b22, devctl 0x66
    [    9.337437] type=1505 audit(1327729796.329:2):  operation="profile_load" pid=602 name="/sbin/dhclient3"
    [    9.338251] type=1505 audit(1327729796.329:3):  operation="profile_load" pid=602 name="/usr/lib/NetworkManager/nm-dhcp-client.action"
    [    9.338703] type=1505 audit(1327729796.329:4):  operation="profile_load" pid=602 name="/usr/lib/connman/scripts/dhclient-script"
    [    9.340519] type=1505 audit(1327729796.333:5):  operation="profile_replace" pid=611 name="/sbin/dhclient3"
    [    9.341353] type=1505 audit(1327729796.333:6):  operation="profile_replace" pid=611 name="/usr/lib/NetworkManager/nm-dhcp-client.action"
    [    9.341807] type=1505 audit(1327729796.333:7):  operation="profile_replace" pid=611 name="/usr/lib/connman/scripts/dhclient-script"
    [    9.349296] type=1505 audit(1327729796.341:8):  operation="profile_load" pid=615 name="/usr/sbin/ntpd"
    [    9.350626] type=1505 audit(1327729796.341:9):  operation="profile_replace" pid=614 name="/usr/sbin/ntpd"
    [    9.389806] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.26ks
    [    9.389811] iwl3945: Copyright(c) 2003-2009 Intel Corporation
    [    9.389898] iwl3945 0000:02:00.0: enabling device (0000 -> 0002)
    [    9.389911] iwl3945 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
    [    9.389932] iwl3945 0000:02:00.0: setting latency timer to 64
    [    9.405891] [drm] radeon defaulting to kernel modesetting.
    [    9.405895] [drm] radeon kernel modesetting enabled.
    [    9.405977] radeon 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
    [    9.406005] radeon 0000:01:00.0: setting latency timer to 64
    [    9.408883] [drm] radeon: Initializing kernel modesetting.
    [    9.409003] [drm] register mmio base: 0xC8100000
    [    9.409006] [drm] register mmio size: 65536
    [    9.409131] ATOM BIOS: M52P
    [    9.409420] [drm] GPU reset succeed (RBBM_STATUS=0x10000140)
    [    9.409459] [drm] Generation 2 PCI interface, using max accessible memory
    [    9.409463] [drm] radeon: VRAM 128M
    [    9.409466] [drm] radeon: VRAM from 0x00000000 to 0x07FFFFFF
    [    9.409468] [drm] radeon: GTT 512M
    [    9.409471] [drm] radeon: GTT from 0x20000000 to 0x3FFFFFFF
    [    9.409656]   alloc irq_desc for 29 on node -1
    [    9.409659]   alloc kstat_irqs on node -1
    [    9.409691] radeon 0000:01:00.0: irq 29 for MSI/MSI-X
    [    9.409760] radeon 0000:01:00.0: radeon: using MSI.
    [    9.409833] [drm] radeon: irq initialized.
    [    9.410738] [drm] Detected VRAM RAM=128M, BAR=128M
    [    9.410743] [drm] RAM width 64bits DDR
    [    9.410843] [TTM] Zone  kernel: Available graphics memory: 430264 kiB.
    [    9.410846] [TTM] Zone highmem: Available graphics memory: 1547740 kiB.
    [    9.410868] [drm] radeon: 128M of VRAM memory ready
    [    9.410871] [drm] radeon: 512M of GTT memory ready.
    [    9.410893] [drm] GART: num cpu pages 131072, num gpu pages 131072
    [    9.413685] [drm] RB2D reset succeed (RBBM_STATUS=0x10000140)
    [    9.413765] [drm] radeon: 1 quad pipes, 1 z pipes initialized.
    [    9.413859] [drm] PCIE GART of 512M enabled (table at 0x00040000).
    [    9.413908] [drm] radeon: cp idle (0x10000C03)
    [    9.414052] [drm] Loading R500 Microcode
    [    9.414416] platform radeon_cp.0: firmware: requesting radeon/R520_cp.bin
    [    9.447801] iwl3945 0000:02:00.0: Tunable channels: 13 802.11bg, 23 802.11a channels
    [    9.447807] iwl3945 0000:02:00.0: Detected Intel Wireless WiFi Link 3945ABG
    [    9.447927]   alloc irq_desc for 30 on node -1
    [    9.447930]   alloc kstat_irqs on node -1
    [    9.447966] iwl3945 0000:02:00.0: irq 30 for MSI/MSI-X
    [    9.453819] Initializing USB Mass Storage driver...
    [    9.454333] scsi2 : SCSI emulation for USB Mass Storage devices
    [    9.454760] usbcore: registered new interface driver usb-storage
    [    9.454765] USB Mass Storage support registered.
    [    9.456673] usb-storage: device found at 5
    [    9.456677] usb-storage: waiting for device to settle before scanning
    [    9.458508] phy0: Selected rate control algorithm 'iwl-3945-rs'
    [    9.465749] [drm] radeon: ring at 0x0000000020000000
    [    9.465792] [drm] ring test succeeded in 7 usecs
    [    9.466054] [drm] radeon: ib pool ready.
    [    9.466383] [drm] ib test succeeded in 0 usecs
    [    9.466565] [drm] Radeon Display Connectors
    [    9.466568] [drm] Connector 0:
    [    9.466570] [drm]   VGA
    [    9.466574] [drm]   DDC: 0x7e40 0x7e40 0x7e44 0x7e44 0x7e48 0x7e48 0x7e4c 0x7e4c
    [    9.466576] [drm]   Encoders:
    [    9.466579] [drm]     CRT1: INTERNAL_KLDSCP_DAC1
    [    9.466581] [drm] Connector 1:
    [    9.466584] [drm]   LVDS
    [    9.466587] [drm]   DDC: 0x7e30 0x7e30 0x7e34 0x7e34 0x7e38 0x7e38 0x7e3c 0x7e3c
    [    9.466590] [drm]   Encoders:
    [    9.466592] [drm]     LCD1: INTERNAL_LVTM1
    [    9.489218] usbcore: registered new interface driver hiddev
    [    9.493488] input: 2.4G Wireless Mouse as /devices/pci0000:00/0000:00:1d.7/usb1/1-8/1-8.1/1-8.1:1.0/input/input6
    [    9.493679] generic-usb 0003:04F3:02F4.0001: input,hiddev96,hidraw0: USB HID v1.11 Mouse [2.4G Wireless Mouse] on usb-0000:00:1d.7-8.1/input0
    [    9.493719] usbcore: registered new interface driver usbhid
    [    9.493723] usbhid: v2.6:USB HID core driver
    [    9.493828] yenta_cardbus 0000:0a:09.0: ISA IRQ mask 0x0cf8, PCI irq 20
    [    9.493834] yenta_cardbus 0000:0a:09.0: Socket status: 30000006
    [    9.493839] pci_bus 0000:0a: Raising subordinate bus# of parent bus (#0a) from #0b to #0e
    [    9.493850] yenta_cardbus 0000:0a:09.0: pcmcia: parent PCI bridge I/O window: 0x3000 - 0x3fff
    [    9.493855] pcmcia_socket pcmcia_socket0: cs: IO port probe 0x3000-0x3fff: clean.
    [    9.494149] yenta_cardbus 0000:0a:09.0: pcmcia: parent PCI bridge Memory window: 0xc8300000 - 0xc83fffff
    [    9.494154] yenta_cardbus 0000:0a:09.0: pcmcia: parent PCI bridge Memory window: 0xc0000000 - 0xc3ffffff
    [    9.501791] tifm_7xx1 0000:0a:09.2: PCI INT A -> GSI 20 (level, low) -> IRQ 20
    [    9.594169]   alloc irq_desc for 22 on node -1
    [    9.594174]   alloc kstat_irqs on node -1
    [    9.594183] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
    [    9.594227] HDA Intel 0000:00:1b.0: setting latency timer to 64
    [    9.684337] scsi3 : SCSI emulation for USB Mass Storage devices
    [    9.684467] usbcore: registered new interface driver ums-cypress
    [    9.685568] usb-storage: device found at 2
    [    9.685571] usb-storage: waiting for device to settle before scanning
    [    9.707834] hda_codec: ALC883: BIOS auto-probing.
    [    9.708933] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/input/input7
    [    9.769439] EXT4-fs (sda4): mounted filesystem with ordered data mode
    [    9.878491] iwl3945 0000:02:00.0: firmware: requesting iwlwifi-3945-2.ucode
    [    9.882913] type=1505 audit(1327729796.873:10):  operation="profile_replace" pid=809 name="/sbin/dhclient3"
    [    9.883739] type=1505 audit(1327729796.873:11):  operation="profile_replace" pid=809 name="/usr/lib/NetworkManager/nm-dhcp-client.action"
    [    9.892882] iwl3945 0000:02:00.0: loaded firmware version 15.32.2.9
    [    9.948746] Synaptics Touchpad, model: 1, fw: 6.2, id: 0x12a0b1, caps: 0xa04713/0x204000/0x0
    [    9.990703] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio4/input/input8
    [    9.992388] pcmcia_socket pcmcia_socket0: cs: IO port probe 0x100-0x3af: clean.
    [    9.994489] pcmcia_socket pcmcia_socket0: cs: IO port probe 0x3e0-0x4ff: excluding 0x4d0-0x4d7
    [    9.995366] pcmcia_socket pcmcia_socket0: cs: IO port probe 0x820-0x8ff: clean.
    [    9.996553] pcmcia_socket pcmcia_socket0: cs: IO port probe 0xc00-0xcf7: clean.
    [    9.997529] pcmcia_socket pcmcia_socket0: cs: IO port probe 0xa00-0xaff: clean.
    [   10.005692] [drm] fb mappable at 0xD00C0000
    [   10.005696] [drm] vram apper at 0xD0000000
    [   10.005699] [drm] size 4096000
    [   10.005701] [drm] fb depth is 24
    [   10.005703] [drm]    pitch is 5120
    [   10.005826] fb0: radeondrmfb frame buffer device
    [   10.005829] registered panic notifier
    [   10.005837] [drm] Initialized radeon 2.0.0 20080528 for 0000:01:00.0 on minor 0
    [   10.012554] vga16fb: initializing
    [   10.012560] vga16fb: mapped to 0xc00a0000
    [   10.012565] vga16fb: not registering due to another framebuffer present
    [   10.029411] Registered led device: iwl-phy0::radio
    [   10.030148] Registered led device: iwl-phy0::assoc
    [   10.031188] Registered led device: iwl-phy0::RX
    [   10.031864] Registered led device: iwl-phy0::TX
    [   10.044952] ADDRCONF(NETDEV_UP): wlan0: link is not ready
    [   10.046602] eth0: link down
    [   10.046882] ADDRCONF(NETDEV_UP): eth0: link is not ready
    [   10.354983] Console: switching to colour frame buffer device 160x50
    [   10.749591] ppdev: user-space parallel port driver
    [   14.458438] usb-storage: device scan complete
    [   14.462254] scsi 2:0:0:0: CD-ROM            TSSTcorp CDDVDW SE-S084D  TS00 PQ: 0 ANSI: 0
    [   14.489476] sr1: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
    [   14.489655] sr 2:0:0:0: Attached scsi CD-ROM sr1
    [   14.489758] sr 2:0:0:0: Attached scsi generic sg2 type 5
    [   14.685294] usb-storage: device scan complete
    [   14.687377] scsi 3:0:0:0: Direct-Access     WDC WD25 00BEVE-00WZT0    0000 PQ: 0 ANSI: 0
    [   14.688204] sd 3:0:0:0: Attached scsi generic sg3 type 0
    [   14.691827] sd 3:0:0:0: [sdb] 488397168 512-byte logical blocks: (250 GB/232 GiB)
    [   14.692693] sd 3:0:0:0: [sdb] Write Protect is off
    [   14.692697] sd 3:0:0:0: [sdb] Mode Sense: 27 00 00 00
    [   14.692700] sd 3:0:0:0: [sdb] Assuming drive cache: write through
    [   14.694928] sd 3:0:0:0: [sdb] Assuming drive cache: write through
    [   14.694934]  sdb: sdb1
    [   14.995323] sd 3:0:0:0: [sdb] Assuming drive cache: write through
    [   14.995330] sd 3:0:0:0: [sdb] Attached SCSI disk
    [   27.794063] wlan0: deauthenticating from 00:22:b0:dc:02:86 by local choice (reason=3)
    [   27.795446] wlan0: direct probe to AP 00:22:b0:dc:02:86 (try 1)
    [   27.798045] wlan0: direct probe responded
    [   27.798052] wlan0: authenticate with AP 00:22:b0:dc:02:86 (try 1)
    [   27.800942] wlan0: authenticated
    [   27.800969] wlan0: associate with AP 00:22:b0:dc:02:86 (try 1)
    [   27.804743] wlan0: RX AssocResp from 00:22:b0:dc:02:86 (capab=0x411 status=0 aid=1)
    [   27.804748] wlan0: associated
    [   27.808330] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [   28.776651] padlock: VIA PadLock not detected.
    [   38.265024] wlan0: no IPv6 routers presen
    Ciao e grazie ancora
    -= Nic =-
    Amico di Emergency_2013
    Linux registered user # 380338
    Linux registered machine # 283289

  6. #6

  7. #7
    Utente di HTML.it L'avatar di nicnac
    Registrato dal
    Sep 2010
    Messaggi
    37
    Originariamente inviato da sacarde
    mah

    io proverei a disabilitare l'ipv6

    http://www.ubuntugeek.com/how-to-dis...in-ubuntu.html
    Fatto come mi hai indicato tu ma non è cambiato nulla e 30 minuti fa mi ha mollato ancora!!!
    -= Nic =-
    Amico di Emergency_2013
    Linux registered user # 380338
    Linux registered machine # 283289

  8. #8
    non ho capito cosa fa riavviando il servizio network


    p.s.
    il dmesg sopra e' appena dopo la disconnessione?

  9. #9
    Utente di HTML.it L'avatar di nicnac
    Registrato dal
    Sep 2010
    Messaggi
    37
    Originariamente inviato da sacarde
    non ho capito cosa fa riavviando il servizio network


    p.s.
    il dmesg sopra e' appena dopo la disconnessione?
    Si il dmesg è appena dopo la disconnessione.
    Per il riavvio l'ho sempre fatto riavviando Ubuntu.
    Ad esempio oggi pomeriggio network manager era collegato alla rete ma non riuscivo ne ad aprire una pagina web e nemmeno a scaricare la posta.
    Come detto sopra riavviando Ubuntu riparte la connessione.
    Ciao
    -= Nic =-
    Amico di Emergency_2013
    Linux registered user # 380338
    Linux registered machine # 283289

  10. #10
    invece di riavviare prova se basta riavviare il servizio:

    sudo /etc/init.d/networking restart




    se lo vedi connesso ma non navighi potrebbe essere un problema di dns
    prova se con un ping ad un indirizzo risponde es:

    ping 173.194.35.56

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