dsl-524T
появилась проблема разрыва соединения.
иногда соединение рвётся и востанавливается примерно каждые 20 секунд и так около 10-12 раз после чего несколько часов находится в состоянии респаун.
иногда помогала (или совпадение) смена режимов Multi-mod G.dmt T1.413
после отключения и включения модема работает стабильно около суток. Модемом пользуюсь 3 года.
провайдер домолинк Тулателеком.
Firmware Version : V2.00B01T01.EU-A.20060214

status log

Jan 1 12:00:10> Valid Configuration Tree
Jan 1 12:00:11> NTP Polling Timer for DHCP Started succesfully.
Jan 1 12:00:11> DSL Polling Timer Started succesfully.
Jan 1 12:00:11> doing modulation_set.
Jan 1 12:00:11> Firewall NAT service started
Jan 1 12:00:15> starting on port 80
Jan 1 12:00:16> Bridge Created: br0
Jan 1 12:00:16> Bridge Created: br1
Jan 1 12:00:17> Bridge Interface Added: eth0
Jan 1 12:00:21> DSL Carrier is down
Jan 1 12:00:41> DSL Carrier is up
Jan 1 12:00:44> pppd 2.4.1 started by root, uid 0
Jan 1 12:00:47> Failed to negotiate PPPoE connection: 25
Jan 1 12:00:47> System Call Error
Jan 1 12:00:51> pppd 2.4.1 started by root, uid 0
Jan 1 12:00:56> Failed to negotiate PPPoE connection: 25
Jan 1 12:00:56> System Call Error


Jan 1 12:01:01> pppd 2.4.1 started by root, uid 0
Jan 1 12:01:03> Failed to negotiate PPPoE connection: 25
Jan 1 12:01:03> System Call Error
Jan 1 12:01:06> pppd 2.4.1 started by root, uid 0
Jan 1 12:01:06> Failed to negotiate PPPoE connection: 25
Jan 1 12:01:06> System Call Error
Jan 1 12:01:11> pppd 2.4.1 started by root, uid 0
Jan 1 12:01:13> Failed to negotiate PPPoE connection: 25
Jan 1 12:01:13> System Call Error
Jan 1 12:01:16> pppd 2.4.1 started by root, uid 0
Jan 1 12:01:17> Failed to negotiate PPPoE connection: 25
Jan 1 12:01:17> System Call Error
Jan 1 12:01:21> pppd 2.4.1 started by root, uid 0
Jan 1 12:01:23> Failed to negotiate PPPoE connection: 25
Jan 1 12:01:23> System Call Error
Jan 1 12:01:26> pppd 2.4.1 started by root, uid 0
Jan 1 12:01:28> Failed to negotiate PPPoE connection: 25
Jan 1 12:01:29> System Call Error
Jan 1 12:01:31> pppd 2.4.1 started by root, uid 0
Jan 1 12:01:32> Failed to negotiate PPPoE connection: 25
Jan 1 12:01:32> System Call Error
Jan 1 12:01:36> pppd 2.4.1 started by root, uid 0
Jan 1 12:01:36> Failed to negotiate PPPoE connection: 25
Jan 1 12:01:36> System Call Error
Jan 1 12:01:39> pppd 2.4.1 started by root, uid 0
Jan 1 12:01:46> System Call Error
Jan 1 12:01:46> Failed to negotiate PPPoE connection: 25
Jan 1 12:01:46> pppd 2.4.1 started by root, uid 0
Jan 1 12:01:46> Failed to negotiate PPPoE connection: 25
Jan 1 12:01:46> System Call Error
Jan 1 12:01:49> pppd 2.4.1 started by root, uid 0
Jan 1 12:01:52> System Call Error
Jan 1 12:01:52> Failed to negotiate PPPoE connection: 25
Jan 1 12:01:52> pppd 2.4.1 started by root, uid 0
Jan 1 12:01:52> Failed to negotiate PPPoE connection: 25
Jan 1 12:01:52> System Call Error
Jan 1 12:01:53> pppd 2.4.1 started by root, uid 0
Jan 1 12:01:55> Failed to negotiate PPPoE connection: 25
Jan 1 12:01:55> System Call Error
Jan 1 12:01:56> pppd 2.4.1 started by root, uid 0
Jan 1 12:01:57> Failed to negotiate PPPoE connection: 25
Jan 1 12:01:57> System Call Error


Jan 1 12:02:02> pppd 2.4.1 started by root, uid 0
Jan 1 12:02:03> Failed to negotiate PPPoE connection: 25
Jan 1 12:02:03> System Call Error
Jan 1 12:02:06> pppd 2.4.1 started by root, uid 0
Jan 1 12:02:07> Failed to negotiate PPPoE connection: 25
Jan 1 12:02:07> System Call Error
Jan 1 12:02:12> pppd 2.4.1 started by root, uid 0
Jan 1 12:02:13> Failed to negotiate PPPoE connection: 25
Jan 1 12:02:13> System Call Error
Jan 1 12:02:16> pppd 2.4.1 started by root, uid 0
Jan 1 12:02:20> Failed to negotiate PPPoE connection: 25
Jan 1 12:02:20> System Call Error
Jan 1 12:02:21> pppd 2.4.1 started by root, uid 0
Jan 1 12:02:22> Failed to negotiate PPPoE connection: 25
Jan 1 12:02:22> System Call Error
Jan 1 12:02:22> pppd 2.4.1 started by root, uid 0
Jan 1 12:02:23> Failed to negotiate PPPoE connection: 25
Jan 1 12:02:23> System Call Error
Jan 1 12:02:23> pppd 2.4.1 started by root, uid 0
Jan 1 12:02:31> Failed to negotiate PPPoE connection: 25
Jan 1 12:02:31> System Call Error

ADSL Status

ADSL status shows the ADSL physical layer status.

ADSL Firmware Version: 4.03.03.00 - 3.02.00.03 - 3.02.06.00 Annex A - 01.07.02 - 0.49
ADSL Software Version: V2.00B01T01.EU-A.20060214
Line State Connected
Modulation G.dmt
Annex Mode ANNEX_A
Max Tx Power -38 dBm/Hz

Item Downstream Upstream Unit
SNR Margin 8 7 dB
Line Attenuation 38 20 dB
Data Rate 6144 928 kbps


Нужен совет как сделать стабильную работу.

По протоколу видно, что через 20 секунд падает линия и больше не поднимается. ADSL статус соединения куцый - нет статистики ошибок.

Спс.
Мб совпадение или какойто прикол =) , но после того как поставил Synchronize the ADSL Router's clock with: Automatic (Simple Network Time Protocol)

Проблема пока не повтарялась.