Mam co prawda pasywny hub, ale nie widzę nawet prób połączenia z siecią, a wydaje mi się, że brak prądu powinien objawiać się padem całego routera. Tak się jednak nie dzieje, więc wstępnie wykluczam hub jako powód. Jak będzie już połączenie, i będzie zrywane lub będzie padał router, to zakupię aktywny hub. 
Rozszerzyłem próby o pingowanie serwera (8.8.8.8) i restart WAN, 60 sekund opóźnienia i ping co minutę. Wymusiłem również inny adres MAC (jak na Twoim zrzucie, 00:01:02:03:04:05). Niestety, bez efektów – miga pojedynczo niebieska (nie błękitna) dioda. Całość zrestartowałem na tych ustawieniach, poczekałem trzy minuty i skopiowałem log:
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 36.110000] Hooked IMQ after nat on POSTROUTING
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 36.110000] IMQ driver loaded successfully. (numdevs = 2, numqueues = 1)
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 36.330000] Netfilter messages via NETLINK v0.30.
Jan 1 01:00:40 Gargoyle kern.notice kernel: [ 36.360000] ip_set: protocol 6
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 36.990000] i2c /dev entries driver
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.040000] usbcore: registered new interface driver cdc_acm
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.050000] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.140000] usbcore: registered new interface driver snd-usb-audio
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.280000] usbcore: registered new interface driver usblp
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.320000] usbcore: registered new interface driver usbserial
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.320000] USB Serial support registered for generic
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.330000] usbcore: registered new interface driver usbserial_generic
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.340000] usbserial: USB Serial Driver core
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.370000] USB Serial support registered for Sierra USB modem
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.370000] usbcore: registered new interface driver sierra
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.380000] sierra: v.1.7.40:USB Driver for Sierra Wireless USB modems
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.410000] usbcore: registered new interface driver sierra_net
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.470000] usbcore: registered new interface driver ums-alauda
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.500000] usbcore: registered new interface driver ums-cypress
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.530000] usbcore: registered new interface driver ums-datafab
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.560000] usbcore: registered new interface driver ums-freecom
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.580000] usbcore: registered new interface driver ums-isd200
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.610000] usbcore: registered new interface driver ums-jumpshot
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.640000] usbcore: registered new interface driver ums-karma
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.680000] usbcore: registered new interface driver ums-sddr09
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.700000] usbcore: registered new interface driver ums-sddr55
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.740000] usbcore: registered new interface driver ums-usbat
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.790000] Linux video capture interface: v2.00
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 37.840000] usbcore: registered new interface driver cdc_ether
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.000000] usb 1-1.4: MAC-Address: 0x0c:0x5b:0x8f:0x27:0x9a:0x64
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.010000] cdc_ncm 1-1.4:1.1: wwan0: register 'cdc_ncm' at usb-ehci-platform-1.4, Mobile Broadband Network Device, 0c:5b:8f:27:9a:64
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.020000] usbcore: registered new interface driver cdc_ncm
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.130000] USB Serial support registered for GSM modem (1-port)
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.140000] option 1-1.4:1.0: GSM modem (1-port) converter detected
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.140000] usb 1-1.4: GSM modem (1-port) converter now attached to ttyUSB0
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.150000] usbcore: registered new interface driver option
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.150000] option: v0.7.2:USB Driver for GSM modems
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.180000] USB Serial support registered for Qualcomm USB modem
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.190000] usbcore: registered new interface driver qcserial
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.320000] gspca_main: v2.14.0 registered
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.350000] usbcore: registered new interface driver ov534
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.380000] usbcore: registered new interface driver zc3xx
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.420000] fuse init (API version 7.18)
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.460000] usbcore: registered new interface driver uvcvideo
Jan 1 01:00:40 Gargoyle kern.info kernel: [ 38.460000] USB Video Class driver (1.1.1)
Jan 1 01:00:43 Gargoyle kern.info kernel: [ 43.670000] Adding 131068k swap on /dev/sda2. Priority:-1 extents:1 across:131068k
Jan 1 01:00:46 Gargoyle kern.info kernel: [ 46.280000] device eth0 entered promiscuous mode
Jan 1 01:00:46 Gargoyle daemon.notice netifd: Interface 'lan' is now up
Jan 1 01:00:46 Gargoyle daemon.notice netifd: Interface 'loopback' is now up
Jan 1 01:00:46 Gargoyle user.notice firewall: Reloading firewall due to ifup of lan (br-lan)
Jan 1 01:00:47 Gargoyle daemon.notice netifd: wan (955): Trying to set mode
Jan 1 01:00:47 Gargoyle user.notice usb-modeswitch: 1-0:1.0: Manufacturer=Linux_3.3.8_ehci_hcd Product=Generic_Platform_EHCI_Controller Serial=ehci-platform
Jan 1 01:00:50 Gargoyle kern.info kernel: [ 50.950000] device wlan0 entered promiscuous mode
Jan 1 01:00:51 Gargoyle kern.info kernel: [ 51.290000] br-lan: port 2(wlan0) entered forwarding state
Jan 1 01:00:51 Gargoyle kern.info kernel: [ 51.290000] br-lan: port 2(wlan0) entered forwarding state
Jan 1 01:00:53 Gargoyle kern.info kernel: [ 53.290000] br-lan: port 2(wlan0) entered forwarding state
Oct 3 16:15:04 Gargoyle daemon.notice netifd: wan (955): Timeout setting WWAN mode!
Oct 3 16:15:05 Gargoyle authpriv.info dropbear[1295]: Running in background
Oct 3 16:15:05 Gargoyle user.notice usb-modeswitch: 1-1:1.0: Manufacturer=USB_Device Product=USB_2.0_Hub Serial=?
Oct 3 16:15:06 Gargoyle daemon.warn httpd_gargoyle[1350]: started as root without requesting chroot(), warning only
Oct 3 16:15:06 Gargoyle daemon.notice httpd_gargoyle[1350]: httpd_gargoyle/1.0 14mar2008 starting on Gargoyle, port 80
Oct 3 16:15:07 Gargoyle user.notice usb-modeswitch: 1-1.1:1.0: Manufacturer=C-Media_Electronics_Inc. Product=USB_PnP_Sound_Device Serial=?
Oct 3 16:15:07 Gargoyle daemon.notice netifd: wan (955): Trying to set mode
Oct 3 16:15:07 Gargoyle user.notice usb-modeswitch: 1-1.1:1.1: Manufacturer=C-Media_Electronics_Inc. Product=USB_PnP_Sound_Device Serial=?
Oct 3 16:15:07 Gargoyle user.notice dnsmasq: DNS rebinding protection is active, will discard upstream RFC1918 responses!
Oct 3 16:15:07 Gargoyle user.notice dnsmasq: Allowing 127.0.0.0/8 responses
Oct 3 16:15:08 Gargoyle user.notice dnsmasq: Allowing RFC1918 responses for domain free.aero2.net.pl
Oct 3 16:15:08 Gargoyle user.notice usb-modeswitch: 1-1.1:1.2: Manufacturer=C-Media_Electronics_Inc. Product=USB_PnP_Sound_Device Serial=?
Oct 3 16:15:08 Gargoyle user.notice usb-modeswitch: 1-1.1:1.3: Manufacturer=C-Media_Electronics_Inc. Product=USB_PnP_Sound_Device Serial=?
Oct 3 16:15:09 Gargoyle user.notice usb-modeswitch: 1-1.3:1.0: Manufacturer=Kingston Product=DT_100_G2 Serial=00137299805EBA915597001B
Oct 3 16:15:09 Gargoyle user.notice usb-modeswitch: 1-1.4:1.0: Manufacturer=HUAWEI_Technology Product=HUAWEI_Mobile Serial=?
Oct 3 16:15:09 Gargoyle user.notice usb-modeswitch: 1-1.4:1.1: Manufacturer=HUAWEI_Technology Product=HUAWEI_Mobile Serial=?
Oct 3 16:15:10 Gargoyle user.notice usb-modeswitch: 1-1.4:1.2: Manufacturer=HUAWEI_Technology Product=HUAWEI_Mobile Serial=?
Oct 3 16:15:10 Gargoyle user.notice usb-modeswitch: 1-1.4:1.3: Manufacturer=HUAWEI_Technology Product=HUAWEI_Mobile Serial=?
Oct 3 16:15:11 Gargoyle daemon.info dnsmasq[1800]: started, version 2.66 cachesize 150
Oct 3 16:15:11 Gargoyle daemon.info dnsmasq[1800]: compile time options: no-IPv6 GNU-getopt no-DBus no-i18n no-IDN DHCP no-DHCPv6 no-Lua TFTP no-conntrack no-ipset no-auth
Oct 3 16:15:11 Gargoyle daemon.info dnsmasq-dhcp[1800]: DHCP, IP range 192.168.1.100 -- 192.168.1.199, lease time 12h
Oct 3 16:15:11 Gargoyle daemon.info dnsmasq[1800]: using local addresses only for domain lan
Oct 3 16:15:11 Gargoyle daemon.info dnsmasq[1800]: reading /tmp/resolv.conf.auto
Oct 3 16:15:11 Gargoyle daemon.info dnsmasq[1800]: using nameserver 208.67.222.222#53
Oct 3 16:15:11 Gargoyle daemon.info dnsmasq[1800]: using nameserver 208.67.220.220#53
Oct 3 16:15:11 Gargoyle daemon.info dnsmasq[1800]: using local addresses only for domain lan
Oct 3 16:15:11 Gargoyle daemon.info dnsmasq[1800]: read /etc/hosts - 3 addresses
Oct 3 16:15:11 Gargoyle daemon.info dnsmasq-dhcp[1800]: read /etc/ethers - 0 addresses
Oct 3 16:15:12 Gargoyle daemon.notice rpc.statd[1847]: Version 1.2.6 starting
Oct 3 16:15:12 Gargoyle daemon.notice sm-notify[1848]: Version 1.2.6 starting
Oct 3 16:15:12 Gargoyle daemon.err sm-notify[1848]: Failed to open directory sm.bak: No such file or directory
Oct 3 16:15:12 Gargoyle daemon.notice rpc.statd[1847]: Initializing NSM state
Oct 3 16:15:12 Gargoyle daemon.warn rpc.statd[1847]: Running as root. chown /var/lib/nfs to choose different user
Oct 3 16:15:12 Gargoyle user.info sysinit: exportfs: Failed to stat /nfs/Worek: No such file or directory
Oct 3 16:15:12 Gargoyle daemon.notice rpc.mountd[1870]: Version 1.2.6 starting
Oct 3 16:15:14 Gargoyle user.info sysinit: ERROR: No valid dynamic DNS service configurations defined
Oct 3 16:15:14 Gargoyle user.info sysinit: (Did you specify correct configuration file path?)
Oct 3 16:15:20 Gargoyle daemon.info hostapd: wlan0: STA 00:1d:e0:a3:d0:85 IEEE 802.11: authenticated
Oct 3 16:15:20 Gargoyle daemon.info hostapd: wlan0: STA 00:1d:e0:a3:d0:85 IEEE 802.11: associated (aid 1)
Oct 3 16:15:20 Gargoyle daemon.info hostapd: wlan0: STA 00:1d:e0:a3:d0:85 WPA: pairwise key handshake completed (RSN)
Oct 3 16:15:20 Gargoyle daemon.info dnsmasq-dhcp[1800]: DHCPREQUEST(br-lan) 192.168.1.106 00:1d:e0:a3:d0:85
Oct 3 16:15:20 Gargoyle daemon.info dnsmasq-dhcp[1800]: DHCPACK(br-lan) 192.168.1.106 00:1d:e0:a3:d0:85 C64
Oct 3 16:15:23 Gargoyle daemon.notice netifd: wan (955): Timeout setting WWAN mode!
Oct 3 16:15:23 Gargoyle kern.warn kernel: [ 73.480000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:23 Gargoyle kern.warn kernel: [ 73.480000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:23 Gargoyle kern.info kernel: [ 73.520000] Adding 131068k swap on /dev/sda2. Priority:-1 extents:1 across:131068k
Oct 3 16:15:23 Gargoyle kern.warn kernel: [ 73.580000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:23 Gargoyle kern.warn kernel: [ 73.580000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:23 Gargoyle kern.info kernel: [ 73.650000] EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)
Oct 3 16:15:24 Gargoyle user.notice root: vsftpd init: mounted = 1
Oct 3 16:15:24 Gargoyle user.notice root: vsftpd init: got_lock = 1
Oct 3 16:15:25 Gargoyle user.info sysinit: setting up led USB
Oct 3 16:15:25 Gargoyle user.info sysinit: setting up led WLAN
Oct 3 16:15:25 Gargoyle user.info sysinit: setting up led LAN
Oct 3 16:15:26 Gargoyle daemon.notice netifd: wan (2508): udhcpc (v1.19.4) started
Oct 3 16:15:26 Gargoyle daemon.notice netifd: wan (2508): Sending discover...
Oct 3 16:15:26 Gargoyle kern.warn kernel: [ 76.930000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:26 Gargoyle kern.warn kernel: [ 76.930000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:26 Gargoyle kern.info kernel: [ 76.980000] Adding 131068k swap on /dev/sda2. Priority:-1 extents:1 across:131068k
Oct 3 16:15:27 Gargoyle kern.warn kernel: [ 77.040000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:27 Gargoyle kern.warn kernel: [ 77.040000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:29 Gargoyle daemon.notice netifd: wan (2508): Sending discover...
Oct 3 16:15:30 Gargoyle kern.warn kernel: [ 80.480000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:30 Gargoyle kern.warn kernel: [ 80.480000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:30 Gargoyle kern.info kernel: [ 80.530000] Adding 131068k swap on /dev/sda2. Priority:-1 extents:1 across:131068k
Oct 3 16:15:30 Gargoyle kern.warn kernel: [ 80.590000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:30 Gargoyle kern.warn kernel: [ 80.590000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:32 Gargoyle daemon.notice netifd: wan (2508): Sending discover...
Oct 3 16:15:33 Gargoyle kern.warn kernel: [ 83.050000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:33 Gargoyle kern.warn kernel: [ 83.050000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:33 Gargoyle kern.info kernel: [ 83.090000] Adding 131068k swap on /dev/sda2. Priority:-1 extents:1 across:131068k
Oct 3 16:15:33 Gargoyle kern.warn kernel: [ 83.150000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:33 Gargoyle kern.warn kernel: [ 83.160000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:34 Gargoyle kern.warn kernel: [ 84.390000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:34 Gargoyle kern.warn kernel: [ 84.390000] disktype: sending ioctl 5305 to a partition!
Oct 3 16:15:34 Gargoyle kern.info kernel: [ 84.430000] Adding 131068k swap on /dev/sda2. Priority:-1 extents:1 across:131068k
Oct 3 16:15:55 Gargoyle daemon.info hostapd: wlan0: STA 20:13:e0:ab:e8:0b IEEE 802.11: authenticated
Oct 3 16:15:55 Gargoyle daemon.info hostapd: wlan0: STA 20:13:e0:ab:e8:0b IEEE 802.11: associated (aid 2)
Oct 3 16:15:55 Gargoyle daemon.info hostapd: wlan0: STA 20:13:e0:ab:e8:0b WPA: pairwise key handshake completed (RSN)
Oct 3 16:15:56 Gargoyle daemon.info dnsmasq-dhcp[1800]: DHCPREQUEST(br-lan) 192.168.1.155 20:13:e0:ab:e8:0b
Oct 3 16:15:56 Gargoyle daemon.info dnsmasq-dhcp[1800]: DHCPACK(br-lan) 192.168.1.155 20:13:e0:ab:e8:0b GT-S5330
Oct 3 16:16:01 Gargoyle user.notice /usr/lib/gargoyle/ping_watchdog.sh: WAN Restart
Oct 3 16:16:02 Gargoyle daemon.notice netifd: wan (3174): Trying to set mode
Oct 3 16:16:06 Gargoyle daemon.notice netifd: Interface 'wan' is now down
Oct 3 16:16:07 Gargoyle daemon.notice netifd: wan (3182): Trying to set mode
Oct 3 16:16:22 Gargoyle daemon.notice netifd: wan (3182): Timeout setting WWAN mode!
Oct 3 16:16:26 Gargoyle daemon.notice netifd: wan (3182): Trying to set mode
Oct 3 16:16:41 Gargoyle daemon.notice netifd: wan (3182): Timeout setting WWAN mode!
Oct 3 16:16:45 Gargoyle daemon.notice netifd: wan (3196): udhcpc (v1.19.4) started
Oct 3 16:16:45 Gargoyle daemon.notice netifd: wan (3196): Sending discover...
Oct 3 16:16:48 Gargoyle daemon.notice netifd: wan (3196): Sending discover...
Oct 3 16:16:51 Gargoyle daemon.notice netifd: wan (3196): Sending discover...
Oct 3 16:17:01 Gargoyle user.notice /usr/lib/gargoyle/ping_watchdog.sh: WAN Restart
Oct 3 16:17:02 Gargoyle daemon.notice netifd: wan (3212): Trying to set mode
Oct 3 16:17:06 Gargoyle daemon.notice netifd: Interface 'wan' is now down
Oct 3 16:17:07 Gargoyle daemon.notice netifd: wan (3220): Trying to set mode
Oct 3 16:17:22 Gargoyle daemon.notice netifd: wan (3220): Timeout setting WWAN mode!
Oct 3 16:17:26 Gargoyle daemon.notice netifd: wan (3220): Trying to set mode
Oct 3 16:17:41 Gargoyle daemon.notice netifd: wan (3220): Timeout setting WWAN mode!
Oct 3 16:17:44 Gargoyle daemon.notice netifd: wan (3234): udhcpc (v1.19.4) started
Oct 3 16:17:44 Gargoyle daemon.notice netifd: wan (3234): Sending discover...
Oct 3 16:17:47 Gargoyle daemon.notice netifd: wan (3234): Sending discover...
Oct 3 16:17:50 Gargoyle daemon.notice netifd: wan (3234): Sending discover...
Success