Имеется DSL-2300U.
Раз в 1-2 час пропадает интернет и не восстанавливается пока не перегрузишь. Как лечить ?

Device Info
Board ID: D-1P
Software Version: RU_DSL-2300U_3-06-04-3B00.A2pB023g2.d19b
Bootloader (CFE) Version: 1.0.37-6.5

ADSL Statistics

ADSL Statistics

Mode: ADSL2+

Line Coding: Trellis On
Status: No Defect
Link Power State: L0

Downstream Upstream
SNR Margin (dB): 24.7 8.0
Attenuation (dB): 37.0 19.6
Output Power (dBm): 12.6 0.0
Attainable Rate (Kbps): 12184 1000
Rate (Kbps): 4896 991

MSGc (number of bytes in overhead channel message): 59 12
B (number of bytes in Mux Data Frame): 153 30
M (number of Mux Data Frames in FEC Data Frame): 1 1
T (Mux Data Frames over sync bytes): 1 4
R (number of check bytes in FEC Data Frame): 0 0
S (ratio of FEC over PMD Data Frame length): 1.0000 0.9920
L (number of bits in PMD Data Frame): 1232 250
D (interleaver depth): 1 1
Delay (msec): 0 0

Super Frames: 224998 224996
Super Frame Errors: 0 3
RS Words: 0 0
RS Correctable Errors: 0 0
RS Uncorrectable Errors: 0 N/A

HEC Errors: 0 2
OCD Errors: 0 0
LCD Errors: 0 0
Total Cells: 42222900 8557653
Data Cells: 13773383 572688
Bit Errors: 0 0

Total ES: 0 3
Total SES: 0 0
Total UAS: 16 0

System Log

Date/Time Facility Severity Message
1st day 00:00:08 syslog emerg BCM96345 started: BusyBox v1.00 (2005.04.12-18:11+0000)
1st day 00:00:08 user notice kernel: klogd started: BusyBox v1.00 (2005.04.12-18:11+0000)
1st day 00:00:08 user warn kernel: Linux version (@) ()
1st day 00:00:08 user warn kernel: Parallel flash device: name AM29LV160B, id 0x2249, size 2048KB
1st day 00:00:08 user warn kernel: Total Flash size: 2048K with 35 sectors
1st day 00:00:08 user warn kernel: D-1P prom init
1st day 00:00:08 user warn kernel: CPU revision is: 00029010
1st day 00:00:08 user warn kernel: Determined physical RAM map:
1st day 00:00:08 user warn kernel: memory: 007a0000 @ 00000000 (usable)
1st day 00:00:08 user warn kernel: Built 1 zonelists
1st day 00:00:08 user warn kernel: Kernel command line: root=31:0 ro noinitrd
1st day 00:00:08 user warn kernel: brcm mips: enabling icache and dcache...
1st day 00:00:08 user warn kernel: Primary instruction cache 16kB, physically tagged, 2-way, linesize 16 bytes.
1st day 00:00:08 user warn kernel: Primary data cache 8kB 2-way, linesize 16 bytes.
1st day 00:00:08 user warn kernel: PID hash table entries: 32 (order 5: 256 bytes)
1st day 00:00:08 user warn kernel: Using 120.000 MHz high precision timer.
1st day 00:00:08 user warn kernel: Dentry cache hash table entries: 2048 (order: 1, 8192 bytes)
1st day 00:00:08 user warn kernel: Inode-cache hash table entries: 1024 (order: 0, 4096 bytes)
1st day 00:00:09 user info kernel: Memory: 6084k/7808k available (1234k kernel code, 1704k reserved, 181k data, 64k init, 0k highmem)
1st day 00:00:09 user warn kernel: Calibrating delay loop... 239.20 BogoMIPS
1st day 00:00:09 user warn kernel: Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
1st day 00:00:09 user warn kernel: Checking for 'wait' instruction... unavailable.
1st day 00:00:09 user info kernel: NET: Registered protocol family 16
1st day 00:00:09 user warn kernel: Can't analyze prologue code at 801433c4
1st day 00:00:09 user info kernel: PPP generic driver version 2.4.2
1st day 00:00:09 user info kernel: NET: Registered protocol family 24
1st day 00:00:09 user warn kernel: Using noop io scheduler
1st day 00:00:09 user warn kernel: bcm963xx_mtd driver v1.0
1st day 00:00:09 user warn kernel: brcmboard: brcm_board_init entry
1st day 00:00:09 user warn kernel: bcm963xx_serial driver v2.0
1st day 00:00:09 user info kernel: NET: Registered protocol family 2
1st day 00:00:09 user info kernel: IP: routing cache hash table of 512 buckets, 4Kbytes
1st day 00:00:09 user info kernel: TCP: Hash tables configured (established 512 bind 1024)
1st day 00:00:09 user info kernel: NET: Registered protocol family 1
1st day 00:00:09 user info kernel: NET: Registered protocol family 17
1st day 00:00:09 user notice kernel: Ebtables v2.0 registered
1st day 00:00:09 user info kernel: NET: Registered protocol family 8
1st day 00:00:09 user info kernel: NET: Registered protocol family 20
1st day 00:00:09 user warn kernel: VFS: Mounted root (squashfs filesystem) readonly.
1st day 00:00:09 user info kernel: Freeing unused kernel memory: 64k freed
1st day 00:00:09 user warn kernel: Algorithmics/MIPS FPU Emulator v1.5
1st day 00:00:09 user warn kernel: atmapi: module license 'Proprietary' taints kernel.
1st day 00:00:09 user warn kernel: blaadd: blaa_detect entry
1st day 00:00:09 user warn kernel: adsl: adsl_init entry
1st day 00:00:09 user info kernel: Broadcom BCMPROCFS v1.0 initialized
1st day 00:00:09 user warn kernel: Broadcom BCM6338A2 Ethernet Network Device v0.3
1st day 00:00:09 user warn kernel: Config Internal PHY Through MDIO
1st day 00:00:09 user info kernel: BCM63xx_ENET: 100 MB Full-Duplex (auto-neg)
1st day 00:00:09 user warn kernel: eth0: MAC Address: 00:19:5B:11:AD:DE
1st day 00:00:09 user crit kernel: eth0 Link UP.
1st day 00:00:09 user warn kernel: BcmAdsl_Initialize=0xC00673B8, g_pFnNotifyCallback=0xC007E4E4
1st day 00:00:09 user warn kernel: pSdramPHY=0xA07FFFF8, 0x1B784E 0xDEADBEEF
1st day 00:00:09 user warn kernel: AdslCoreHwReset: AdslOemDataAddr = 0xA07FA744
1st day 00:00:09 user warn kernel: dgasp: kerSysRegisterDyingGaspHandler: dsl0 registered
1st day 00:00:09 user info kernel: device eth0 entered promiscuous mode
1st day 00:00:09 user info kernel: br0: port 1(eth0) entering learning state
1st day 00:00:09 user info kernel: br0: topology change detected, propagating
1st day 00:00:09 user info kernel: br0: port 1(eth0) entering forwarding state
1st day 00:00:09 user crit kernel: ADSL G.994 training
1st day 00:00:10 daemon notice pppd[192]: pppd 2.4.1 started by admin, uid 0
1st day 00:00:15 user crit kernel: ADSL G.992 started
1st day 00:00:20 user crit kernel: ADSL G.992 channel analysis
1st day 00:00:26 user crit kernel: ADSL G.992 message exchange
1st day 00:00:26 user crit kernel: ADSL link up, interleaved, us=991, ds=4896
1st day 00:00:26 user warn kernel: ATM Soft SAR: ATM link connected.
1st day 00:00:27 daemon notice pppd[192]: PPP: Start to connect ...
1st day 00:00:27 daemon crit pppd[192]: PPP server detected.
1st day 00:00:27 daemon crit pppd[192]: PPP session established.
1st day 00:00:27 daemon crit pppd[192]: PPP LCP UP.
1st day 00:00:27 daemon crit pppd[192]: Received valid IP address from server. Connection UP.
1st day 00:00:31 user warn kernel: ip_tables: (C) 2000-2002 Netfilter core team
1st day 00:00:31 user warn kernel: ip_conntrack version 2.1 (61 buckets, 0 max) - 368 bytes per conntrack
1st day 01:00:08 syslog info -- MARK --

Заранее благодарен.
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Попробуйте в Advanced > ADSL отключить режим ADSL2/2+ (оставив только G.dmt модуляцию), пронаблюдайте результат.

Спасибо за ответ.

Увы, все тоже самое. В логе не всегда пишет в конце -Mark-.
Т.е. получается, что на момент пропадания интернета ничего в логе не появляется. В Device Info высвечивает адреса шлюза и днс серверов.
Получается, что с момента подключения нигде ничего не меняется, но сам интернет пропадает.

P.S. Не указал сразу, может облегчит, провадер Укртелеком, ОГО 4 Мбс

Параметры затухания Вашей линии несколько завышены.
Попросите провайдера немного понизить скорость Downstream потока (например: до 3Mbit/s) и посмотрите, не изменится ли ситуация.
Также попросите провайдера переключить режим линии с Fast на Interleave (если не переключен). Если Ваша линия уже работает в режиме Interleave - попросите увеличить задержку (delay) в параметрах Interleave. Все это делается на стороне провайдера.

_________________
С уважением, Давыдов Денис.