L3+ hashrate to 0 after a few time

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    Hello, there's internet error, please check the internet connection.

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    Here is today's the kernel log (the last lines repaet over and over) :

    [ 0.000000] Booting Linux on physical CPU 0x0
    [ 0.000000] Initializing cgroup subsys cpu
    [ 0.000000] Linux version 3.8.13 (xxl@armdev01) (gcc version 4.7.4 20130626 (prerelease) (Linaro GCC 4.7-2013.07) ) #22 SMP Tue Dec 2 15:26:11 CST 2014
    [ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=50c5387d
    [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
    [ 0.000000] Machine: Generic AM33XX (Flattened Device Tree), model: TI AM335x BeagleBone
    [ 0.000000] Memory policy: ECC disabled, Data cache writeback
    [ 0.000000] On node 0 totalpages: 65280
    [ 0.000000] free_area_init_node: node 0, pgdat c06cb100, node_mem_map c0726000
    [ 0.000000] Normal zone: 512 pages used for memmap
    [ 0.000000] Normal zone: 0 pages reserved
    [ 0.000000] Normal zone: 64768 pages, LIFO batch:15
    [ 0.000000] AM335X ES1.0 (neon )
    [ 0.000000] PERCPU: Embedded 8 pages/cpu @c0933000 s9408 r8192 d15168 u32768
    [ 0.000000] pcpu-alloc: s9408 r8192 d15168 u32768 alloc=8*4096
    [ 0.000000] pcpu-alloc: [0] 0
    [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 64768
    [ 0.000000] Kernel command line: console=ttyO0,115200n8 init=/sbin/init
    [ 0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
    [ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
    [ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
    [ 0.000000] __ex_table already sorted, skipping sort
    [ 0.000000] allocated 524288 bytes of page_cgroup
    [ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
    [ 0.000000] Memory: 255MB = 255MB total
    [ 0.000000] Memory: 230784k/230784k available, 31360k reserved, 0K highmem
    [ 0.000000] Virtual kernel memory layout:
    [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
    [ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
    [ 0.000000] vmalloc : 0xd0800000 - 0xff000000 ( 744 MB)
    [ 0.000000] lowmem : 0xc0000000 - 0xd0000000 ( 256 MB)
    [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
    [ 0.000000] modules : 0xbf800000 - 0xbfe00000 ( 6 MB)
    [ 0.000000] .text : 0xc0008000 - 0xc0612cf0 (6188 kB)
    [ 0.000000] .init : 0xc0613000 - 0xc06554c0 ( 266 kB)
    [ 0.000000] .data : 0xc0656000 - 0xc06cc020 ( 473 kB)
    [ 0.000000] .bss : 0xc06cc020 - 0xc0725e3c ( 360 kB)
    [ 0.000000] Hierarchical RCU implementation.
    [ 0.000000] RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1.
    [ 0.000000] NR_IRQS:16 nr_irqs:16 16
    [ 0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
    [ 0.000000] Total of 128 interrupts on 1 active controller
    [ 0.000000] OMAP clockevent source: GPTIMER1 at 24000000 Hz
    [ 0.000000] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956ms
    [ 0.000000] OMAP clocksource: GPTIMER2 at 24000000 Hz
    [ 0.000000] Console: colour dummy device 80x30
    [ 0.000354] Calibrating delay loop... 545.07 BogoMIPS (lpj=531968)
    [ 0.015436] pid_max: default: 32768 minimum: 301
    [ 0.015666] Security Framework initialized
    [ 0.015761] Mount-cache hash table entries: 512
    [ 0.024592] Initializing cgroup subsys cpuacct
    [ 0.024626] Initializing cgroup subsys memory
    [ 0.024689] Initializing cgroup subsys blkio
    [ 0.024825] CPU: Testing write buffer coherency: ok
    [ 0.025397] CPU0: thread -1, cpu 0, socket -1, mpidr 0
    [ 0.025473] Setting up static identity map for 0x8038c820 - 0x8038c86c
    [ 0.026802] Brought up 1 CPUs
    [ 0.026826] SMP: Total of 1 processors activated (545.07 BogoMIPS).
    [ 0.028117] devtmpfs: initialized
    [ 0.092518] pinctrl core: initialized pinctrl subsystem
    [ 0.092738] rstctl core: initialized rstctl subsystem
    [ 0.093233] regulator-dummy: no parameters
    [ 0.093802] NET: Registered protocol family 16
    [ 0.094508] DMA: preallocated 256 KiB pool for atomic coherent allocations
    [ 0.104169] pinctrl-single 44e10800.pinmux: prop pinctrl-0 index 0 invalid phandle
    [ 0.104351] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568
    [ 0.105438] platform 49000000.edma: alias fck already exists
    [ 0.105472] platform 49000000.edma: alias fck already exists
    [ 0.105501] platform 49000000.edma: alias fck already exists
    [ 0.106656] gpiochip_add: registered GPIOs 0 to 31 on device: gpio
    [ 0.106840] OMAP GPIO hardware version 0.1
    [ 0.108240] gpiochip_add: registered GPIOs 32 to 63 on device: gpio
    [ 0.109566] gpiochip_add: registered GPIOs 64 to 95 on device: gpio
    [ 0.110872] gpiochip_add: registered GPIOs 96 to 127 on device: gpio
    [ 0.111507] of_get_named_gpio_flags exited with status 52
    [ 0.111537] gpio-rctrl rstctl.3: loaded OK
    [ 0.116648] omap-gpmc 50000000.gpmc: GPMC revision 6.0
    [ 0.119856] hw-breakpoint: debug architecture 0x4 unsupported.
    [ 0.122037] cpsw.0: No hwaddr in dt. Using 64:cf:d9:81:6b:f9 from efuse
    [ 0.122069] cpsw.1: No hwaddr in dt. Using 64:cf:d9:81:6b:fb from efuse
    [ 0.137627] bio: create slab <bio-0> at 0
    [ 0.149755] edma-dma-engine edma-dma-engine.0: TI EDMA DMA engine driver
    [ 0.149995] of_get_named_gpio_flags: can't parse gpios property
    [ 0.150288] vmmcsd_fixed: 3300 mV
    [ 0.153400] SCSI subsystem initialized
    [ 0.153856] usbcore: registered new interface driver usbfs
    [ 0.153969] usbcore: registered new interface driver hub
    [ 0.154307] usbcore: registered new device driver usb
    [ 0.156400] omap_i2c 4819c000.i2c: bus 0 rev0.11 at 100 kHz
    [ 0.156434] omap_i2c 4819c000.i2c: unable to select pin group
    [ 0.156630] media: Linux media interface: v0.10
    [ 0.156725] Linux video capture interface: v2.00
    [ 0.156843] pps_core: LinuxPPS API ver. 1 registered
    [ 0.156860] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
    [ 0.157575] Advanced Linux Sound Architecture Driver Initialized.
    [ 0.158766] Switching to clocksource gp_timer
    [ 0.176728] NET: Registered protocol family 2
    [ 0.177720] TCP established hash table entries: 2048 (order: 2, 16384 bytes)
    [ 0.177809] TCP bind hash table entries: 2048 (order: 3, 40960 bytes)
    [ 0.177899] TCP: Hash tables configured (established 2048 bind 2048)
    [ 0.177991] TCP: reno registered
    [ 0.178018] UDP hash table entries: 256 (order: 1, 12288 bytes)
    [ 0.178065] UDP-Lite hash table entries: 256 (order: 1, 12288 bytes)
    [ 0.178557] NET: Registered protocol family 1
    [ 0.179146] RPC: Registered named UNIX socket transport module.
    [ 0.179166] RPC: Registered udp transport module.
    [ 0.179179] RPC: Registered tcp transport module.
    [ 0.179193] RPC: Registered tcp NFSv4.1 backchannel transport module.
    [ 0.179581] Trying to unpack rootfs image as initramfs...
    [ 2.040138] Freeing initrd memory: 20132K
    [ 2.040834] CPU PMU: probing PMU on CPU 0
    [ 2.040868] hw perfevents: enabled with ARMv7 Cortex-A8 PMU driver, 5 counters available
    [ 2.041416] omap2_mbox_probe: platform not supported
    [ 2.045282] VFS: Disk quotas dquot_6.5.2
    [ 2.045519] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
    [ 2.046906] NFS: Registering the id_resolver key type
    [ 2.047000] Key type id_resolver registered
    [ 2.047017] Key type id_legacy registered
    [ 2.047086] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc.
    [ 2.047590] msgmni has been set to 490
    [ 2.050360] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
    [ 2.050386] io scheduler noop registered
    [ 2.050402] io scheduler deadline registered
    [ 2.050459] io scheduler cfq registered (default)
    [ 2.054353] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
    [ 2.056720] omap_uart 44e09000.serial: did not get pins for uart0 error: -19
    [ 2.057011] 44e09000.serial: ttyO0 at MMIO 0x44e09000 (irq = 88) is a OMAP UART0
    [ 2.718145] console [ttyO0] enabled
    [ 2.722682] 48022000.serial: ttyO1 at MMIO 0x48022000 (irq = 89) is a OMAP UART1
    [ 2.731571] 48024000.serial: ttyO2 at MMIO 0x48024000 (irq = 90) is a OMAP UART2
    [ 2.740248] 481a8000.serial: ttyO4 at MMIO 0x481a8000 (irq = 61) is a OMAP UART4
    [ 2.748913] 481aa000.serial: ttyO5 at MMIO 0x481aa000 (irq = 62) is a OMAP UART5
    [ 2.757915] [drm] Initialized drm 1.1.0 20060810
    [ 2.776532] brd: module loaded
    [ 2.786812] loop: module loaded
    [ 2.790991] bone-capemgr bone_capemgr.8: Failed to find baseboard eeprom node
    [ 2.800941] nand_get_flash_type: 2c,f1 against 2c,f1
    [ 2.806469] ONFI param page 0 valid
    [ 2.810142] ONFI flash detected
    [ 2.813461] NAND device: Manufacturer ID: 0x2c, Chip ID: 0xf1 (Micron MT29F1G08ABAEAWP), 128MiB, page size: 2048, OOB size: 64
    [ 2.825373] omap2-nand: detected x8 NAND flash
    [ 2.830038] nand: using OMAP_ECC_BCH8_CODE_HW ECC scheme
    [ 2.835619] omap2-nand: using custom ecc layout
    [ 2.840452] 10 ofpart partitions found on MTD device omap2-nand.0
    [ 2.846845] Creating 10 MTD partitions on "omap2-nand.0":
    [ 2.852517] 0x000000000000-0x000000020000 : "spl"
    [ 2.859312] 0x000000020000-0x000000040000 : "spl_backup1"
    [ 2.866754] 0x000000040000-0x000000060000 : "spl_backup2"
    [ 2.874159] 0x000000060000-0x000000080000 : "spl_backup3"
    [ 2.881583] 0x000000080000-0x000000240000 : "u-boot"
    [ 2.889832] 0x000000240000-0x000000260000 : "bootenv"
    [ 2.896737] 0x000000260000-0x000000280000 : "fdt"
    [ 2.903365] 0x000000280000-0x000000780000 : "kernel"
    [ 2.914336] 0x000000800000-0x000001c00000 : "root"
    [ 2.937802] 0x000001c00000-0x000003000000 : "config"
    [ 2.961534] OneNAND driver initializing
    [ 2.967212] usbcore: registered new interface driver asix
    [ 2.973026] usbcore: registered new interface driver cdc_ether
    [ 2.979280] usbcore: registered new interface driver smsc95xx
    [ 2.985392] usbcore: registered new interface driver net1080
    [ 2.991412] usbcore: registered new interface driver cdc_subset
    [ 2.997701] usbcore: registered new interface driver zaurus
    [ 3.003983] usbcore: registered new interface driver cdc_ncm
    [ 3.010819] usbcore: registered new interface driver cdc_acm
    [ 3.016773] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
    [ 3.025150] Initializing USB Mass Storage driver...
    [ 3.030383] usbcore: registered new interface driver usb-storage
    [ 3.036683] USB Mass Storage support registered.
    [ 3.041754] musb-hdrc: version 6.0, ?dma?, otg (peripheral+host)
    [ 3.048456] musb-hdrc musb-hdrc.0.auto: pdev->id = 0
    [ 3.053694] musb-hdrc musb-hdrc.0.auto: drivers/usb/musb/musb_dsps.c:468 dsps_musb_init: OK
    [ 3.062460] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
    [ 3.062482] musb-hdrc: MHDRC RTL version 2.0
    [ 3.062497] musb-hdrc: setup fifo_mode 4
    [ 3.062525] musb-hdrc: 28/31 max ep, 16384/16384 memory
    [ 3.062673] musb-hdrc musb-hdrc.0.auto: *** mode=3
    [ 3.067715] musb-hdrc musb-hdrc.0.auto: *** power=250
    [ 3.073752] musb-hdrc musb-hdrc.1.auto: pdev->id = 1
    [ 3.079001] musb-hdrc musb-hdrc.1.auto: drivers/usb/musb/musb_dsps.c:468 dsps_musb_init: OK
    [ 3.087764] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
    [ 3.087785] musb-hdrc: MHDRC RTL version 2.0
    [ 3.087798] musb-hdrc: setup fifo_mode 4
    [ 3.087821] musb-hdrc: 28/31 max ep, 16384/16384 memory
    [ 3.087962] musb-hdrc musb-hdrc.1.auto: *** mode=1
    [ 3.093003] musb-hdrc musb-hdrc.1.auto: *** power=250
    [ 3.098311] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
    [ 3.104679] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 1
    [ 3.112913] musb-hdrc musb-hdrc.1.auto: supports USB remote wakeup
    [ 3.113017] usb usb1: default language 0x0409
    [ 3.113075] usb usb1: udev 1, busnum 1, minor = 0
    [ 3.113098] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
    [ 3.120223] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
    [ 3.127793] usb usb1: Product: MUSB HDRC host driver
    [ 3.133006] usb usb1: Manufacturer: Linux 3.8.13 musb-hcd
    [ 3.138674] usb usb1: SerialNumber: musb-hdrc.1.auto
    [ 3.144624] usb usb1: usb_probe_device
    [ 3.144652] usb usb1: configuration #1 chosen from 1 choice
    [ 3.144716] usb usb1: adding 1-0:1.0 (config #1, interface 0)
    [ 3.144917] hub 1-0:1.0: usb_probe_interface
    [ 3.144939] hub 1-0:1.0: usb_probe_interface - got id
    [ 3.144967] hub 1-0:1.0: USB hub found
    [ 3.149017] hub 1-0:1.0: 1 port detected
    [ 3.153185] hub 1-0:1.0: standalone hub
    [ 3.153205] hub 1-0:1.0: individual port power switching
    [ 3.153224] hub 1-0:1.0: no over-current protection
    [ 3.153241] hub 1-0:1.0: Single TT
    [ 3.153262] hub 1-0:1.0: TT requires at most 8 FS bit times (666 ns)
    [ 3.153282] hub 1-0:1.0: power on to power good time: 10ms
    [ 3.153339] hub 1-0:1.0: local power source is good
    [ 3.153457] hub 1-0:1.0: enabling power on all ports
    [ 3.154507] mousedev: PS/2 mouse device common for all mice
    [ 3.162479] omap_rtc 44e3e000.rtc: rtc core: registered 44e3e000.rtc as rtc0
    [ 3.169984] 44e3e000.rtc: already running
    [ 3.174506] i2c /dev entries driver
    [ 3.179524] pps_ldisc: PPS line discipline registered
    [ 3.184997] Driver for 1-wire Dallas network protocol.
    [ 3.192285] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
    [ 3.199839] cpuidle: using governor ladder
    [ 3.204165] cpuidle: using governor menu
    [ 3.208738] of_get_named_gpio_flags exited with status 6
    [ 3.208756] of_get_named_gpio_flags: can't parse gpios property
    [ 3.208772] of_get_named_gpio_flags: can't parse gpios property
    [ 3.208810] omap_hsmmc mmc.4: of_parse_phandle_with_args of 'reset' failed
    [ 3.216032] omap_hsmmc mmc.4: Failed to get rstctl; not using any
    [ 3.222835] edma-dma-engine edma-dma-engine.0: allocated channel for 0:25
    [ 3.230048] edma-dma-engine edma-dma-engine.0: allocated channel for 0:24
    [ 3.237386] mmc.4 supply vmmc_aux not found, using dummy regulator
    [ 3.244330] omap_hsmmc mmc.4: pins are not configured from the driver
    [ 3.254714] hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0000
    [ 3.278732] of_get_named_gpio_flags exited with status -517
    [ 3.278799] platform gpio-leds.7: Driver leds-gpio requests probe deferral
    [ 3.286447] ledtrig-cpu: registered to indicate activity on CPUs
    [ 3.293216] edma-dma-engine edma-dma-engine.0: allocated channel for 0:36
    [ 3.300408] omap-sham 53100000.sham: hw accel on OMAP rev 4.3
    [ 3.308582] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2
    [ 3.314875] edma-dma-engine edma-dma-engine.0: allocated channel for 0:5
    [ 3.322064] edma-dma-engine edma-dma-engine.0: allocated channel for 0:6
    [ 3.334314] usbcore: registered new interface driver usbhid
    [ 3.340228] usbhid: USB HID core driver
    [ 3.347122] TCP: cubic registered
    [ 3.350647] Initializing XFRM netlink socket
    [ 3.355223] NET: Registered protocol family 17
    [ 3.360123] NET: Registered protocol family 15
    [ 3.364961] Key type dns_resolver registered
    [ 3.369595] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
    [ 3.377678] ThumbEE CPU extension supported.
    [ 3.382188] Registering SWP/SWPB emulation handler
    [ 3.388218] registered taskstats version 1
    [ 3.394826] of_get_named_gpio_flags exited with status -517
    [ 3.394898] platform gpio-leds.7: Driver leds-gpio requests probe deferral
    [ 3.451891] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
    [ 3.458306] davinci_mdio 4a101000.mdio: detected phy mask fffffffe
    [ 3.472802] libphy: 4a101000.mdio: probed
    [ 3.477119] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver SMSC LAN8710/LAN8720
    [ 3.487357] Detected MACID = 64:cf:d9:81:6b:f9
    [ 3.492042] cpsw 4a100000.ethernet: NAPI disabled
    [ 3.497430] of_get_named_gpio_flags exited with status -517
    [ 3.497496] platform gpio-leds.7: Driver leds-gpio requests probe deferral
    [ 3.506214] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
    [ 3.515492] cpu0 supply cpu0 not found, using dummy regulator
    [ 3.521995] cpufreq_cpu0: failed to scale voltage up: -22
    [ 3.527818] cpufreq_cpu0: failed to scale voltage up: -22
    [ 3.540606] ALSA device list:
    [ 3.543845] No soundcards found.
    [ 3.548431] Freeing init memory: 264K
    [ 3.552487] Failed to execute /init
    [ 4.560735] jffs2: notice: (122) jffs2_build_xattr_subsystem: complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.
    [ 6.822875] net eth0: initializing cpsw version 1.12 (0)
    [ 6.831834] net eth0: phy found : id is : 0x7c0f1
    [ 6.837311] libphy: PHY 4a101000.mdio:01 not found
    [ 6.842528] net eth0: phy 4a101000.mdio:01 not found on slave 1
    [ 9.907443] libphy: 4a101000.mdio:00 - Link is Up - 100/Full
    Jan 14 12:21:04 (none) local0.err cgminer[484]: Net Err! lastest job more than 2 mins! waiting ...
    Jan 14 12:21:06 (none) local0.err cgminer[484]: Net Err! lastest job more than 2 mins! waiting ...
    Jan 14 12:21:07 (none) local0.err cgminer[484]: Net Err! lastest job more than 2 mins! waiting ...

    0
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    Hi, thank you for the response.

    I changed the RJ45, load the miner to another place where I also have riggs runnig fine, this unit keep going to 0 hashrate. Is it normal that it stops and doesn't reconnect by itself ? The connection here is well I runned ping during and there is no break whatsoever. 

     

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    One workaround I have found is to use minerstat to reboot the antminer when the miner is inactive.

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