После переподключения с неавторизированного на PPPoE стали происходить обрывы связи. Ранее такого не наблюдалось.

kernel: ADSL link down
Nov 25 11:09:47 user crit kernel: ADSL G.994 training
Nov 25 11:09:48 daemon crit pppd[396]: Clear IP addresses. Connection DOWN.
Nov 25 11:09:48 daemon crit pppd[396]: Clear IP addresses. PPP connection DOWN.
Nov 25 11:09:54 user crit kernel: ADSL G.992 started
Nov 25 11:09:59 user crit kernel: ADSL G.992 channel analysis
Nov 25 11:10:05 user crit kernel: ADSL G.992 message exchange
Nov 25 11:10:06 user crit kernel: ADSL link up, interleaved, us=1053, ds=4128
Nov 25 11:10:09 daemon crit pppd[396]: PPP server detected.
Nov 25 11:10:09 daemon crit pppd[396]: PPP session established.
Nov 25 11:10:09 daemon crit pppd[396]: PPP LCP UP.
Nov 25 11:10:09 daemon crit pppd[396]: Received valid IP address from server. Connection UP.
Nov 25 11:11:27 user crit kernel: ADSL link down
Nov 25 11:11:29 user crit kernel: ADSL G.994 training
Nov 25 11:11:30 daemon crit pppd[396]: Clear IP addresses. Connection DOWN.
Nov 25 11:11:30 daemon crit pppd[396]: Clear IP addresses. PPP connection DOWN.
Nov 25 11:11:37 user crit kernel: ADSL G.992 started
Nov 25 11:11:41 user crit kernel: ADSL G.992 channel analysis
Nov 25 11:11:47 user crit kernel: ADSL G.992 message exchange
Nov 25 11:11:48 user crit kernel: ADSL link up, interleaved, us=1053, ds=4128
Nov 25 11:11:51 daemon crit pppd[396]: PPP server detected.
Nov 25 11:11:51 daemon crit pppd[396]: PPP session established.
Nov 25 11:11:51 daemon crit pppd[396]: PPP LCP UP.
Nov 25 11:11:51 daemon crit pppd[396]: Received valid IP address from server. Connection UP.
и так по кругу. хелпь ми плизь)

Nov 25 11:15:45 user crit kernel: ADSL link down
Nov 25 11:15:45 daemon crit pppd[396]: Clear IP addresses. Connection DOWN.
Nov 25 11:15:45 daemon crit pppd[396]: Clear IP addresses. PPP connection DOWN.
Nov 25 11:15:46 user crit kernel: ADSL G.994 training
Nov 25 11:15:54 user crit kernel: ADSL G.992 started
Nov 25 11:15:58 user crit kernel: ADSL G.992 channel analysis
Nov 25 11:16:04 user crit kernel: ADSL G.992 message exchange
Nov 25 11:16:05 user crit kernel: ADSL link up, interleaved, us=1053, ds=4128
Nov 25 11:16:08 daemon crit pppd[396]: PPP server detected.
Nov 25 11:16:08 daemon crit pppd[396]: PPP session established.
Nov 25 11:16:08 daemon crit pppd[396]: PPP LCP UP.
Nov 25 11:16:08 daemon crit pppd[396]: Received valid IP address from server. Connection UP.
Nov 25 11:24:05 user crit kernel: ADSL link down
Nov 25 11:24:07 user crit kernel: ADSL G.994 training
Nov 25 11:24:08 daemon crit pppd[396]: Clear IP addresses. Connection DOWN.
Nov 25 11:24:08 daemon crit pppd[396]: Clear IP addresses. PPP connection DOWN.
Nov 25 11:24:13 user warn dnsprobe[633]: dns query failed
Nov 25 11:24:15 user crit kernel: ADSL G.992 started
Nov 25 11:24:15 user warn dnsprobe[633]: dns query failed
Nov 25 11:24:17 user warn dnsprobe[633]: dns query failed
Nov 25 11:24:19 user crit kernel: ADSL G.992 channel analysis
Nov 25 11:24:26 user crit kernel: ADSL G.992 message exchange
Nov 25 11:24:26 user crit kernel: ADSL link up, interleaved, us=1053, ds=4128
Nov 25 11:24:29 daemon crit pppd[396]: PPP server detected.
Nov 25 11:24:29 daemon crit pppd[396]: PPP session established.
Nov 25 11:24:29 daemon crit pppd[396]: PPP LCP UP.
Nov 25 11:24:30 daemon crit pppd[396]: Received valid IP address from server. Connection UP.
Nov 25 11:25:07 user crit kernel: ADSL link down
Nov 25 11:25:09 daemon crit pppd[396]: Clear IP addresses. Connection DOWN.
Nov 25 11:25:09 daemon crit pppd[396]: Clear IP addresses. PPP connection DOWN.
Nov 25 11:25:09 user crit kernel: ADSL G.994 training
Nov 25 11:25:17 user crit kernel: ADSL G.992 started
Nov 25 11:25:21 user crit kernel: ADSL G.992 channel analysis
Nov 25 11:25:28 user crit kernel: ADSL G.992 message exchange
Nov 25 11:25:28 user crit kernel: ADSL link up, interleaved, us=1053, ds=4128
Nov 25 11:25:48 user crit kernel: ADSL link down
Nov 25 11:25:51 user crit kernel: ADSL G.994 training
Nov 25 11:25:58 user crit kernel: ADSL G.992 started
Nov 25 11:26:02 user crit kernel: ADSL G.992 channel analysis
Nov 25 11:26:09 user crit kernel: ADSL G.992 message exchange
Nov 25 11:26:09 user crit kernel: ADSL link up, interleaved, us=1053, ds=4128
Nov 25 11:26:14 daemon crit pppd[396]: PPP server detected.
Nov 25 11:26:14 daemon crit pppd[396]: PPP session established.
Nov 25 11:26:15 daemon crit pppd[396]: PPP LCP UP.
Nov 25 11:26:15 daemon crit pppd[396]: Received valid IP address from server. Connection UP.

Провайдер сказал что виноват щум на линии. Так что тема закрыта.