Приветствую.
Стоит компьютер, в него воткнут 3g модем, и через сетевую карту он с этого модема подаёт интернет в локальную сеть.
На компьютере стоит ubuntu 10.10, обновления скачиваю крайне редко, из последних важных изменений - старый компьютер перестал работать(включается, работает пару секунд и выключается). После анализа выявился взувшийся конденсадор на материнской плате. Я заменил весь компьютер на другой. В новый компьютер поставил старую сетевую(ибо новая сразу не определилась) и старый жесткий диск. После этого(а может перед этим, точно сказать не могу) начались частые разрывы связи. Да не простые разрывы, а через определенное время. Часто разрывы возникают в первые минуты после подключения, так же часто через 15 минут(плюс-минус две минуты), чуть реже - через 30 минут(плюс-минус две минуты), и иногда через 45 минут и 60 минут, т.е. явно прослеживается периодичность.
Подключаюсь через wvdial
wvdial.conf
[Dialer Defaults]
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Init3 = AT+CGDCONT=1,"IP","internet.mts.ru"
Modem Type = USB Modem
Phone = *99#
ISDN = 0
Username = mts
Password = mts
Modem = /dev/ttyUSB0
Stupid Mode = On
Выдержка из логов - подключение и разрыв
Oct 21 00:03:14 home-srv1 pppd[10929]: pppd 2.4.5 started by www-data, uid 33
Oct 21 00:03:14 home-srv1 pppd[10929]: Using interface ppp0
Oct 21 00:03:14 home-srv1 pppd[10929]: Connect: ppp0 <--> /dev/ttyUSB0
Oct 21 00:03:14 home-srv1 pppd[10929]: CHAP authentication succeeded
Oct 21 00:03:14 home-srv1 pppd[10929]: CHAP authentication succeeded
Oct 21 00:03:17 home-srv1 pppd[10929]: Could not determine remote IP address: defaulting to 10.64.64.64
Oct 21 00:03:17 home-srv1 pppd[10929]: local IP address 10.203.3.126
Oct 21 00:03:17 home-srv1 pppd[10929]: remote IP address 10.64.64.64
Oct 21 00:03:17 home-srv1 pppd[10929]: primary DNS address 213.87.0.1
Oct 21 00:03:17 home-srv1 pppd[10929]: secondary DNS address 213.87.1.1
Oct 21 00:32:17 home-srv1 pppd[10929]: LCP terminated by peer
Oct 21 00:32:17 home-srv1 pppd[10929]: Connect time 29.0 minutes.
Oct 21 00:32:17 home-srv1 pppd[10929]: Sent 861166 bytes, received 2562928 bytes.
Oct 21 00:32:17 home-srv1 pppd[10929]: Modem hangup
Oct 21 00:32:17 home-srv1 pppd[10929]: Connection terminated.
Oct 21 00:32:17 home-srv1 pppd[10929]: Exit.
Выдержка из логов - время сессии - cat /var/log/messages | grep "Connect time"
Oct 19 00:07:23 home-srv1 pppd[28009]: Connect time 15.5 minutes.
Oct 19 00:20:55 home-srv1 pppd[29623]: Connect time 13.0 minutes.
Oct 19 00:36:34 home-srv1 pppd[31015]: Connect time 15.1 minutes.
Oct 19 01:21:20 home-srv1 pppd[32590]: Connect time 44.2 minutes.
Oct 19 01:37:02 home-srv1 pppd[4635]: Connect time 15.1 minutes.
Oct 19 02:07:15 home-srv1 pppd[6210]: Connect time 29.6 minutes.
Oct 19 02:22:12 home-srv1 pppd[9224]: Connect time 14.4 minutes.
Oct 19 02:37:07 home-srv1 pppd[10725]: Connect time 14.3 minutes.
Oct 19 02:51:53 home-srv1 pppd[12229]: Connect time 14.2 minutes.
Oct 19 03:52:24 home-srv1 pppd[13687]: Connect time 59.9 minutes.
Oct 19 04:07:23 home-srv1 pppd[19695]: Connect time 14.4 minutes.
Oct 19 04:23:07 home-srv1 pppd[21215]: Connect time 15.2 minutes.
Oct 19 04:52:18 home-srv1 pppd[22809]: Connect time 28.6 minutes.
Oct 19 05:07:10 home-srv1 pppd[25718]: Connect time 14.3 minutes.
Oct 19 05:37:19 home-srv1 pppd[27213]: Connect time 29.5 minutes.
Oct 19 05:52:58 home-srv1 pppd[30217]: Connect time 15.1 minutes.
Oct 19 06:22:36 home-srv1 pppd[31807]: Connect time 29.1 minutes.
Oct 19 06:37:19 home-srv1 pppd[2333]: Connect time 14.1 minutes.
Oct 19 07:07:42 home-srv1 pppd[3916]: Connect time 29.8 minutes.
Oct 19 07:23:41 home-srv1 pppd[6956]: Connect time 15.4 minutes.
Oct 19 07:52:52 home-srv1 pppd[8559]: Connect time 28.6 minutes.
Oct 19 08:07:29 home-srv1 pppd[11470]: Connect time 14.0 minutes.
Oct 19 08:37:25 home-srv1 pppd[12994]: Connect time 29.3 minutes.
Oct 19 08:53:12 home-srv1 pppd[15991]: Connect time 15.2 minutes.
Oct 19 09:23:21 home-srv1 pppd[17582]: Connect time 29.6 minutes.
Oct 19 09:38:14 home-srv1 pppd[20587]: Connect time 14.3 minutes.
Oct 19 09:54:04 home-srv1 pppd[22058]: Connect time 15.3 minutes.
Oct 19 10:23:12 home-srv1 pppd[23668]: Connect time 28.6 minutes.
Oct 19 10:38:01 home-srv1 pppd[26576]: Connect time 14.2 minutes.
Oct 19 11:08:11 home-srv1 pppd[28070]: Connect time 29.6 minutes.
Oct 19 11:23:52 home-srv1 pppd[31086]: Connect time 15.1 minutes.
Oct 19 11:38:53 home-srv1 pppd[32666]: Connect time 14.4 minutes.
Oct 19 12:08:04 home-srv1 pppd[1764]: Connect time 28.6 minutes.
Oct 19 12:23:36 home-srv1 pppd[4676]: Connect time 14.9 minutes.
Oct 19 12:53:43 home-srv1 pppd[6253]: Connect time 29.5 minutes.
Oct 19 13:08:29 home-srv1 pppd[9221]: Connect time 14.2 minutes.
Oct 19 13:24:03 home-srv1 pppd[10719]: Connect time 14.9 minutes.
Oct 19 13:39:11 home-srv1 pppd[12263]: Connect time 14.5 minutes.
Oct 19 14:08:22 home-srv1 pppd[13784]: Connect time 28.6 minutes.
Oct 19 14:23:47 home-srv1 pppd[16690]: Connect time 14.8 minutes.
Oct 19 14:54:11 home-srv1 pppd[18260]: Connect time 29.8 minutes.
Oct 19 15:09:29 home-srv1 pppd[21278]: Connect time 14.7 minutes.
Oct 19 15:38:37 home-srv1 pppd[22834]: Connect time 28.5 minutes.
Oct 19 15:53:50 home-srv1 pppd[25748]: Connect time 14.6 minutes.
Oct 19 16:23:55 home-srv1 pppd[27259]: Connect time 29.5 minutes.
Oct 19 16:39:02 home-srv1 pppd[30261]: Connect time 14.5 minutes.
Oct 19 16:54:17 home-srv1 pppd[31785]: Connect time 14.7 minutes.
Oct 19 17:09:41 home-srv1 pppd[860]: Connect time 14.8 minutes.
Oct 19 17:24:05 home-srv1 pppd[2459]: Connect time 13.8 minutes.
Oct 19 17:39:18 home-srv1 pppd[3925]: Connect time 14.6 minutes.
Oct 19 17:54:47 home-srv1 pppd[5475]: Connect time 14.9 minutes.
Oct 19 18:23:56 home-srv1 pppd[7037]: Connect time 28.6 minutes.
Oct 19 18:38:57 home-srv1 pppd[9948]: Connect time 14.4 minutes.
Oct 19 19:08:58 home-srv1 pppd[11458]: Connect time 29.4 minutes.
Oct 19 19:24:10 home-srv1 pppd[14430]: Connect time 14.6 minutes.
Oct 19 19:54:14 home-srv1 pppd[15949]: Connect time 29.5 minutes.
Oct 19 20:24:11 home-srv1 pppd[18943]: Connect time 29.4 minutes.
Oct 19 20:54:05 home-srv1 pppd[21939]: Connect time 29.3 minutes.
Oct 19 21:39:17 home-srv1 pppd[24933]: Connect time 44.6 minutes.
Oct 19 21:54:23 home-srv1 pppd[29431]: Connect time 14.5 minutes.
Oct 19 22:09:28 home-srv1 pppd[30935]: Connect time 14.5 minutes.
Oct 19 22:24:44 home-srv1 pppd[32490]: Connect time 14.7 minutes.
Oct 20 12:15:39 home-srv1 pppd[1341]: Connect time 273.3 minutes.
Oct 20 12:31:26 home-srv1 pppd[4878]: Connect time 15.7 minutes.
Oct 20 12:46:28 home-srv1 pppd[6467]: Connect time 14.9 minutes.
Oct 20 13:15:36 home-srv1 pppd[7980]: Connect time 29.0 minutes.
Oct 20 13:31:08 home-srv1 pppd[10911]: Connect time 15.4 minutes.
Oct 20 14:01:14 home-srv1 pppd[12478]: Connect time 30.0 minutes.
Oct 20 14:16:13 home-srv1 pppd[15493]: Connect time 14.9 minutes.
Oct 20 14:31:15 home-srv1 pppd[17006]: Connect time 14.9 minutes.
Oct 20 14:46:16 home-srv1 pppd[18516]: Connect time 14.9 minutes.
Oct 20 15:02:01 home-srv1 pppd[20039]: Connect time 15.6 minutes.
Oct 20 15:31:11 home-srv1 pppd[21613]: Connect time 29.1 minutes.
Oct 20 15:45:54 home-srv1 pppd[24506]: Connect time 14.6 minutes.
Oct 20 16:01:37 home-srv1 pppd[25976]: Connect time 15.6 minutes.
Oct 20 16:16:00 home-srv1 pppd[27568]: Connect time 14.3 minutes.
Oct 20 16:31:47 home-srv1 pppd[29033]: Connect time 15.7 minutes.
Oct 20 16:46:20 home-srv1 pppd[30601]: Connect time 14.5 minutes.
Oct 20 17:02:31 home-srv1 pppd[32081]: Connect time 16.1 minutes.
Oct 20 17:31:42 home-srv1 pppd[1283]: Connect time 29.1 minutes.
Oct 20 17:46:03 home-srv1 pppd[4204]: Connect time 14.3 minutes.
Oct 20 18:31:53 home-srv1 pppd[5672]: Connect time 45.7 minutes.
Oct 20 19:01:39 home-srv1 pppd[10189]: Connect time 29.7 minutes.
Oct 20 19:46:57 home-srv1 pppd[13170]: Connect time 45.2 minutes.
Oct 20 20:16:46 home-srv1 pppd[17708]: Connect time 29.7 minutes.
Oct 20 20:47:12 home-srv1 pppd[20684]: Connect time 30.3 minutes.
Oct 20 21:16:47 home-srv1 pppd[23730]: Connect time 29.5 minutes.
Oct 20 21:32:04 home-srv1 pppd[26718]: Connect time 15.0 minutes.
Oct 20 22:17:10 home-srv1 pppd[28219]: Connect time 45.0 minutes.
Oct 20 22:47:06 home-srv1 pppd[32701]: Connect time 29.8 minutes.
Oct 20 23:17:09 home-srv1 pppd[3296]: Connect time 30.0 minutes.
Oct 20 23:32:28 home-srv1 pppd[6295]: Connect time 15.2 minutes.
Oct 20 23:47:35 home-srv1 pppd[7825]: Connect time 15.0 minutes.
Oct 21 00:03:09 home-srv1 pppd[9341]: Connect time 15.5 minutes.
Oct 21 00:32:17 home-srv1 pppd[10929]: Connect time 29.0 minutes.
Oct 21 00:47:15 home-srv1 pppd[13848]: Connect time 14.9 minutes.
Oct 21 01:03:03 home-srv1 pppd[15349]: Connect time 15.7 minutes.
Oct 21 01:03:51 home-srv1 pppd[16952]: Connect time 0.7 minutes.
Oct 21 01:17:26 home-srv1 pppd[17067]: Connect time 13.4 minutes.
Oct 21 01:27:00 home-srv1 pppd[18419]: Connect time 9.5 minutes.
Oct 21 01:27:28 home-srv1 pppd[19403]: Connect time 0.4 minutes.
Oct 21 01:28:17 home-srv1 pppd[19472]: Connect time 0.6 minutes.
Oct 21 01:28:47 home-srv1 pppd[19593]: Connect time 0.2 minutes.
Oct 21 01:30:17 home-srv1 pppd[20037]: Connect time 0.8 minutes.
Oct 21 01:33:20 home-srv1 pppd[20174]: Connect time 3.0 minutes.
Oct 21 01:46:34 home-srv1 pppd[20524]: Connect time 13.1 minutes.
Oct 21 01:47:18 home-srv1 pppd[22106]: Connect time 0.6 minutes.
Oct 21 02:02:31 home-srv1 pppd[22210]: Connect time 15.0 minutes.
Кто-нибудь может подсказать в связи с чем возникают разрывы с такой периодичностью?