my modem is usb dongle plus cradle.
i can't connect internet.
please help me?

lsusb
tail -n 100 /var/log/syslog
[live@localhost ~]$ lsusb
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 002: ID 046d:c058 Logitech, Inc. M115 Mouse
Bus 008 Device 003: ID 198f:bccd Beceem Communications Inc.
[live@localhost ~]$ tail -n 100 /var/log/syslog
Aug 12 07:48:59 localhost kernel: [ 234.339242] Modules linked in: usb_storage bcm_wimax(C) uas parport_pc ppdev parport fuse ipt_IFWLOG ipt_psd cls_flow cls_fw cls_u32 sch_tbf sch_prio sch_htb sch_hfsc sch_ingress sch_sfq bridge stp xt_time xt_connlimit xt_realm xt_addrtype ip_set_hash_ip iptable_raw xt_comment xt_recent xt_policy ipt_ULOG ipt_REJECT ipt_REDIRECT ipt_NETMAP ipt_MASQUERADE ipt_ECN ipt_CLUSTERIP ipt_ah xt_set ip_set nf_nat_tftp nf_nat_snmp_basic nf_conntrack_snmp nf_nat_sip nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_h323 nf_nat_ftp nf_nat_amanda ts_kmp nf_conntrack_amanda nf_conntrack_sane nf_conntrack_tftp nf_conntrack_sip nf_conntrack_proto_sctp nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_netlink nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_irc nf_conntrack_h323 nf_conntrack_ftp xt_TPROXY nf_defrag_ipv6 nf_tproxy_core ip6_tables xt_tcpmss xt_pkttype xt_physdev xt_owner xt_NFQUEUE xt_NFLOG nfnetlink_log xt_multiport xt_mark xt_mac xt_limit xt_length xt_iprange xt_helpe
Aug 12 07:48:59 localhost kernel: r xt_hashlimit xt_DSCP xt_dscp xt_dccp xt_conntrack xt_connmark xt_CLASSIFY xt_AUDIT ipt_LOG xt_tcpudp xt_state iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack iptable_mangle nfnetlink iptable_filter ip_tables x_tables bnep bluetooth crc16 rfkill nvidia(PO) cpufreq_ondemand cpufreq_conservative cpufreq_powersave acpi_cpufreq mperf freq_table sd_mod crc_t10dif dm_mirror dm_region_hash dm_log dm_mod snd_hda_codec_realtek snd_hda_intel snd_hda_codec atl1 snd_pcm snd_page_alloc snd_hwdep snd_timer snd iTCO_wdt evdev soundcore mii i2c_i801 iTCO_vendor_support i2c_core asus_atk0110 button processor ipv6 autofs4 unionfs squashfs nls_iso8859_1 isofs pata_jmicron usbhid hid ehci_hcd uhci_hcd jmicron ide_pci_generic firewire_ohci ide_core usbcore firewire_core sr_mod crc_itu_t pata_acpi ata_generic usb_common loop ata_piix ahci libahci libata mpt2sas raid_class scsi_transport_sas scsi_mod [last unloaded: microcode]
Aug 12 07:48:59 localhost kernel: [ 234.339374]
Aug 12 07:48:59 localhost kernel: [ 234.339377] Pid: 2049, comm: usb_modeswitch Tainted: P WC O 3.3.6-desktop586-2.mga2 #1 System manufacturer P5KC/P5KC
Aug 12 07:48:59 localhost kernel: [ 234.339383] EIP: 0060:[<f537e4bd>] EFLAGS: 00010203 CPU: 0
Aug 12 07:48:59 localhost kernel: [ 234.339389] EIP is at free_phs_serviceflow_rules+0x1d/0x130 [bcm_wimax]
Aug 12 07:48:59 localhost kernel: [ 234.339392] EAX: 00000000 EBX: e4df86d0 ECX: 80080006 EDX: 80080007
Aug 12 07:48:59 localhost kernel: [ 234.339395] ESI: 00000064 EDI: e6e18c00 EBP: e4e81dd4 ESP: e4e81db8
Aug 12 07:48:59 localhost kernel: [ 234.339397] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Aug 12 07:48:59 localhost kernel: [ 234.339400] Process usb_modeswitch (pid: 2049, ti=e4e80000 task=e4e7a580 task.ti=e4e80000)
Aug 12 07:48:59 localhost kernel: [ 234.339402] Stack:
Aug 12 07:48:59 localhost kernel: [ 234.339404] e4e81de0 c021559b e4d9e6c0 f5374b9e e4df86d0 00000064 e6e18c00 e4e81de0
Aug 12 07:48:59 localhost kernel: [ 234.339411] f537fc56 e4de0480 e4e81dfc f5374ba9 00000000 f435fda0 f0c58000 f0c58000
Aug 12 07:48:59 localhost kernel: [ 234.339418] 00000600 e4e81e14 f5363bc8 e4e81e18 f4361760 f0c58000 e6e18c1c e4e81e30
Aug 12 07:48:59 localhost kernel: [ 234.339425] Call Trace:
Aug 12 07:48:59 localhost kernel: [ 234.339430] [<c021559b>] ? kfree+0x11b/0x140
Aug 12 07:48:59 localhost kernel: [ 234.339436] [<f5374b9e>] ? AdapterFree+0xee/0x140 [bcm_wimax]
Aug 12 07:48:59 localhost kernel: [ 234.339443] [<f537fc56>] PhsCleanup+0x16/0x40 [bcm_wimax]
Aug 12 07:48:59 localhost kernel: [ 234.339449] [<f5374ba9>] AdapterFree+0xf9/0x140 [bcm_wimax]
Aug 12 07:48:59 localhost kernel: [ 234.339464] [<f435fda0>] ? urb_destroy+0x20/0x30 [usbcore]
Aug 12 07:48:59 localhost kernel: [ 234.339470] [<f5363bc8>] InterfaceAdapterFree+0xe8/0x140 [bcm_wimax]
Aug 12 07:48:59 localhost kernel: [ 234.339485] [<f4361760>] ? usb_disable_endpoint+0x50/0x80 [usbcore]
Aug 12 07:48:59 localhost kernel: [ 234.339491] [<f5363c80>] usbbcm_disconnect+0x60/0x80 [bcm_wimax]
Aug 12 07:48:59 localhost kernel: [ 234.339507] [<f4363a8c>] usb_unbind_interface+0x3c/0x140 [usbcore]
Aug 12 07:48:59 localhost kernel: [ 234.339511] [<c03914ab>] __device_release_driver+0x5b/0xb0
Aug 12 07:48:59 localhost kernel: [ 234.339514] [<c0391524>] device_release_driver+0x24/0x40
Aug 12 07:48:59 localhost kernel: [ 234.339529] [<f4363c07>] usb_driver_release_interface+0x77/0x80 [usbcore]
Aug 12 07:48:59 localhost kernel: [ 234.339545] [<f436aa00>] usbdev_do_ioctl+0x1b90/0x1de0 [usbcore]
Aug 12 07:48:59 localhost kernel: [ 234.339561] [<f436ac50>] ? usbdev_do_ioctl+0x1de0/0x1de0 [usbcore]
Aug 12 07:48:59 localhost kernel: [ 234.339576] [<f436ac5d>] usbdev_ioctl+0xd/0x10 [usbcore]
Aug 12 07:48:59 localhost kernel: [ 234.339580] [<c02303da>] do_vfs_ioctl+0x8a/0x590
Aug 12 07:48:59 localhost kernel: [ 234.339583] [<c04b7510>] ? vmalloc_fault+0xee/0xee
Aug 12 07:48:59 localhost kernel: [ 234.339587] [<c04b7737>] ? do_page_fault+0x227/0x490
Aug 12 07:48:59 localhost kernel: [ 234.339591] [<c02ab129>] ? tomoyo_file_ioctl+0x19/0x20
Aug 12 07:48:59 localhost kernel: [ 234.339594] [<c023094f>] sys_ioctl+0x6f/0x80
Aug 12 07:48:59 localhost kernel: [ 234.339597] [<c04bafe3>] sysenter_do_call+0x12/0x28
Aug 12 07:48:59 localhost kernel: [ 234.339600] Code: 08 0f b7 d2 0f ca 89 50 50 5b 5d c3 90 90 55 89 e5 57 56 53 83 ec 10 3e 8d 74 26 00 89 45 ec a1 84 97 39 f5 3d 80 fb ff ff 74 0d <83> b8 0c a6 01 00 06 0f 87 d2 00 00 00 8b 45 ec 85 c0 0f 84 b7
Aug 12 07:48:59 localhost kernel: [ 234.339642] EIP: [<f537e4bd>] free_phs_serviceflow_rules+0x1d/0x130 [bcm_wimax] SS:ESP 0068:e4e81db8
Aug 12 07:48:59 localhost kernel: [ 234.339650] CR2: 000000000001a60c
Aug 12 07:48:59 localhost kernel: [ 234.339653] ---[ end trace c8311ab95b1b4214 ]---
Aug 12 07:49:04 localhost kernel: [ 239.219466] usb 8-4: USB disconnect, device number 3
Aug 12 07:50:05 localhost kernel: [ 300.001019] [Hardware Error]: Machine check events logged
Aug 12 07:54:52 localhost kernel: [ 587.198824] atl1 0000:02:00.0: eth0 link is up 100 Mbps full duplex
Aug 12 07:54:52 localhost kernel: [ 587.198996] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Aug 12 07:54:52 localhost NetworkManager[688]: <info> (eth0): carrier now ON (device state 20)
Aug 12 07:54:52 localhost NetworkManager[688]: <info> (eth0): device state change: unavailable -> disconnected (reason 'carrier-changed') [20 30 40]
Aug 12 07:54:52 localhost NetworkManager[688]: <info> Auto-activating connection 'System eth0'.
Aug 12 07:54:52 localhost NetworkManager[688]: <info> Activation (eth0) starting connection 'System eth0'
Aug 12 07:54:52 localhost NetworkManager[688]: <info> (eth0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Aug 12 07:54:52 localhost NetworkManager[688]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) scheduled...
Aug 12 07:54:52 localhost NetworkManager[688]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) started...
Aug 12 07:54:52 localhost NetworkManager[688]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) scheduled...
Aug 12 07:54:52 localhost NetworkManager[688]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) complete.
Aug 12 07:54:52 localhost NetworkManager[688]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) starting...
Aug 12 07:54:52 localhost NetworkManager[688]: <info> (eth0): device state change: prepare -> config (reason 'none') [40 50 0]
Aug 12 07:54:52 localhost NetworkManager[688]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) successful.
Aug 12 07:54:52 localhost NetworkManager[688]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) scheduled.
Aug 12 07:54:52 localhost NetworkManager[688]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) complete.
Aug 12 07:54:52 localhost NetworkManager[688]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) started...
Aug 12 07:54:52 localhost NetworkManager[688]: <info> (eth0): device state change: config -> ip-config (reason 'none') [50 70 0]
Aug 12 07:54:52 localhost NetworkManager[688]: <info> Activation (eth0) Beginning DHCPv4 transaction (timeout in 45 seconds)
Aug 12 07:54:53 localhost avahi-daemon[642]: Registering new address record for fe80::21e:8cff:fe8b:b34e on eth0.*.
Aug 12 07:54:55 localhost NetworkManager[688]: <info> dhclient started with pid 2296
Aug 12 07:54:55 localhost NetworkManager[688]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) complete.
Aug 12 07:54:55 localhost dhclient: Internet Systems Consortium DHCP Client 4.2.3-P2
Aug 12 07:54:55 localhost dhclient: Copyright 2004-2012 Internet Systems Consortium.
Aug 12 07:54:55 localhost dhclient: All rights reserved.
Aug 12 07:54:55 localhost dhclient: For info, please visit https://www.isc.org/software/dhcp/
Aug 12 07:54:55 localhost dhclient:
Aug 12 07:54:55 localhost NetworkManager[688]: <info> (eth0): DHCPv4 state changed nbi -> preinit
Aug 12 07:54:55 localhost kernel: [ 590.810573] NET: Registered protocol family 17
Aug 12 07:54:55 localhost dhclient: Listening on LPF/eth0/00:1e:8c:8b:b3:4e
Aug 12 07:54:55 localhost dhclient: Sending on LPF/eth0/00:1e:8c:8b:b3:4e
Aug 12 07:54:55 localhost dhclient: Sending on Socket/fallback
Aug 12 07:54:55 localhost dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6
Aug 12 07:54:57 localhost dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67
Aug 12 07:54:57 localhost dhclient: DHCPOFFER from 192.168.1.1
Aug 12 07:54:57 localhost dhclient: DHCPACK from 192.168.1.1
Aug 12 07:54:57 localhost NetworkManager[688]: <info> (eth0): DHCPv4 state changed preinit -> bound
Aug 12 07:54:57 localhost dhclient: bound to 192.168.1.4 -- renewal in 39718 seconds.
Aug 12 07:54:57 localhost NetworkManager[688]: <info> address 192.168.1.4
Aug 12 07:54:57 localhost NetworkManager[688]: <info> prefix 24 (255.255.255.0)
Aug 12 07:54:57 localhost NetworkManager[688]: <info> gateway 192.168.1.1
Aug 12 07:54:57 localhost NetworkManager[688]: <info> nameserver '192.168.1.1'
Aug 12 07:54:57 localhost NetworkManager[688]: <info> Activation (eth0) Stage 5 of 5 (IPv4 Configure Commit) scheduled...
Aug 12 07:54:57 localhost NetworkManager[688]: <info> Activation (eth0) Stage 5 of 5 (IPv4 Commit) started...
Aug 12 07:54:57 localhost avahi-daemon[642]: Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.1.4.
Aug 12 07:54:57 localhost avahi-daemon[642]: New relevant interface eth0.IPv4 for mDNS.
Aug 12 07:54:57 localhost avahi-daemon[642]: Registering new address record for 192.168.1.4 on eth0.IPv4.
Aug 12 07:54:58 localhost NetworkManager[688]: <info> (eth0): writing resolv.conf to /sbin/resolvconf
Aug 12 07:54:58 localhost NetworkManager[688]: <info> (eth0): device state change: ip-config -> activated (reason 'none') [70 100 0]
Aug 12 07:54:58 localhost NetworkManager[688]: <info> Policy set 'System eth0' (eth0) as default for IPv4 routing and DNS.
Aug 12 07:54:58 localhost NetworkManager[688]: <info> Activation (eth0) successful, device activated.
Aug 12 07:54:58 localhost dbus-daemon[771]: dbus[771]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
Aug 12 07:54:58 localhost dbus[771]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
Aug 12 07:54:58 localhost dbus-daemon[771]: dbus[771]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Aug 12 07:54:58 localhost NetworkManager[688]: <info> Activation (eth0) Stage 5 of 5 (IPv4 Commit) complete.
Aug 12 07:54:58 localhost dbus[771]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Aug 12 07:54:58 localhost dbus-daemon[771]: Mounting other filesystems: [ OK ]
Aug 12 07:55:03 localhost kernel: [ 597.938006] eth0: no IPv6 routers present
http://forum.ubuntu.ir/index.php/topic,29372.0.html
Aug 12 07:48:59 localhost kernel: [ 234.339377] Pid: 2049, comm: usb_modeswitch Tainted: P WC O 3.3.6-desktop586-2.mga2 #1 System manufacturer P5KC/P5KC
Aug 12 07:48:59 localhost kernel: [ 234.339383] EIP: 0060:[<f537e4bd>] EFLAGS: 00010203 CPU: 0
Aug 12 07:48:59 localhost kernel: [ 234.339389] EIP is at free_phs_serviceflow_rules+0x1d/0x130 [bcm_wimax]
Aug 12 07:48:59 localhost kernel: [ 234.339392] EAX: 00000000 EBX: e4df86d0 ECX: 80080006 EDX: 80080007
Aug 12 07:48:59 localhost kernel: [ 234.339395] ESI: 00000064 EDI: e6e18c00 EBP: e4e81dd4 ESP: e4e81db8
Aug 12 07:48:59 localhost kernel: [ 234.339397] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Aug 12 07:48:59 localhost kernel: [ 234.339400] Process usb_modeswitch (pid: 2049, ti=e4e80000 task=e4e7a580 task.ti=e4e80000)
Aug 12 07:48:59 localhost kernel: [ 234.339402] Stack:
Aug 12 07:48:59 localhost kernel: [ 234.339404] e4e81de0 c021559b e4d9e6c0 f5374b9e e4df86d0 00000064 e6e18c00 e4e81de0
Aug 12 07:48:59 localhost kernel: [ 234.339411] f537fc56 e4de0480 e4e81dfc f5374ba9 00000000 f435fda0 f0c58000 f0c58000
Aug 12 07:48:59 localhost kernel: [ 234.339418] 00000600 e4e81e14 f5363bc8 e4e81e18 f4361760 f0c58000 e6e18c1c e4e81e30
Aug 12 07:48:59 localhost kernel: [ 234.339425] Call Trace:
Aug 12 07:48:59 localhost kernel: [ 234.339430] [<c021559b>] ? kfree+0x11b/0x140
Aug 12 07:48:59 localhost kernel: [ 234.339436] [<f5374b9e>] ? AdapterFree+0xee/0x140 [bcm_wimax]
Aug 12 07:48:59 localhost kernel: [ 234.339443] [<f537fc56>] PhsCleanup+0x16/0x40 [bcm_wimax]
Aug 12 07:48:59 localhost kernel: [ 234.339449] [<f5374ba9>] AdapterFree+0xf9/0x140 [bcm_wimax]
Aug 12 07:48:59 localhost kernel: [ 234.339464] [<f435fda0>] ? urb_destroy+0x20/0x30 [usbcore]
Aug 12 07:48:59 localhost kernel: [ 234.339470] [<f5363bc8>] InterfaceAdapterFree+0xe8/0x140 [bcm_wimax]
Aug 12 07:48:59 localhost kernel: [ 234.339485] [<f4361760>] ? usb_disable_endpoint+0x50/0x80 [usbcore]
Aug 12 07:48:59 localhost kernel: [ 234.339491] [<f5363c80>] usbbcm_disconnect+0x60/0x80 [bcm_wimax]
Aug 12 07:48:59 localhost kernel: [ 234.339507] [<f4363a8c>] usb_unbind_interface+0x3c/0x140 [usbcore]
Aug 12 07:48:59 localhost kernel: [ 234.339511] [<c03914ab>] __device_release_driver+0x5b/0xb0
Aug 12 07:48:59 localhost kernel: [ 234.339514] [<c0391524>] device_release_driver+0x24/0x40
Aug 12 07:48:59 localhost kernel: [ 234.339529] [<f4363c07>] usb_driver_release_interface+0x77/0x80 [usbcore]
Aug 12 07:48:59 localhost kernel: [ 234.339545] [<f436aa00>] usbdev_do_ioctl+0x1b90/0x1de0 [usbcore]
Aug 12 07:48:59 localhost kernel: [ 234.339561] [<f436ac50>] ? usbdev_do_ioctl+0x1de0/0x1de0 [usbcore]
Aug 12 07:48:59 localhost kernel: [ 234.339576] [<f436ac5d>] usbdev_ioctl+0xd/0x10 [usbcore]
Aug 12 07:48:59 localhost kernel: [ 234.339580] [<c02303da>] do_vfs_ioctl+0x8a/0x590
Aug 12 07:48:59 localhost kernel: [ 234.339583] [<c04b7510>] ? vmalloc_fault+0xee/0xee
Aug 12 07:48:59 localhost kernel: [ 234.339587] [<c04b7737>] ? do_page_fault+0x227/0x490
Aug 12 07:48:59 localhost kernel: [ 234.339591] [<c02ab129>] ? tomoyo_file_ioctl+0x19/0x20
Aug 12 07:48:59 localhost kernel: [ 234.339594] [<c023094f>] sys_ioctl+0x6f/0x80
Aug 12 07:48:59 localhost kernel: [ 234.339597] [<c04bafe3>] sysenter_do_call+0x12/0x28
Aug 12 07:48:59 localhost kernel: [ 234.339600] Code: 08 0f b7 d2 0f ca 89 50 50 5b 5d c3 90 90 55 89 e5 57 56 53 83 ec 10 3e 8d 74 26 00 89 45 ec a1 84 97 39 f5 3d 80 fb ff ff 74 0d <83> b8 0c a6 01 00 06 0f 87 d2 00 00 00 8b 45 ec 85 c0 0f 84 b7
Aug 12 07:48:59 localhost kernel: [ 234.339642] EIP: [<f537e4bd>] free_phs_serviceflow_rules+0x1d/0x130 [bcm_wimax] SS:ESP 0068:e4e81db8
Aug 12 07:48:59 localhost kernel: [ 234.339650] CR2: 000000000001a60c
Aug 12 07:48:59 localhost kernel: [ 234.339653] ---[ end trace c8311ab95b1b4214 ]---
Aug 12 07:49:04 localhost kernel: [ 239.219466] usb 8-4: USB disconnect, device number 3
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