call is good ... i dont know whats happen to me

see my general log in 1 hour :
Aug 11 14:27:43 pppd[419]: PPP session is 23118 (0x5a4e)
Aug 11 14:27:43 pppd[419]: Connected to 00:30:88:1a:4e:59 via interface eth2.2.1
Aug 11 14:27:43 pppd[419]: Using interface ppp0
Aug 11 14:27:43 pppd[419]: Connect: ppp0 <--> eth2.2.1
Aug 11 14:27:46 WAN Connection: The cable for Ethernet was not plugged in.
Aug 11 14:28:13 pppd[419]: No response to PAP authenticate-requests
Aug 11 14:28:19 pppd[419]: Connection terminated.
Aug 11 14:28:19 pppd[419]: Sent PADT
Aug 11 14:28:19 pppd[419]: Modem hangup
Aug 11 14:28:25 WAN Connection: PPPoE or PPTP authentification failed.
Aug 11 14:28:30 pppd[419]: PPP session is 7932 (0x1efc)
Aug 11 14:28:30 pppd[419]: Connected to 00:30:88:1a:4e:59 via interface eth2.2.1
Aug 11 14:28:30 pppd[419]: Using interface ppp0
Aug 11 14:28:30 pppd[419]: Connect: ppp0 <--> eth2.2.1
Aug 11 14:28:31 pppd[419]: PAP authentication succeeded
Aug 11 14:28:31 pppd[419]: peer from calling number 00:30:88:1A:4E:59 authorized
Aug 11 14:28:31 DSL-N10: auth-up starts
Aug 11 14:28:31 pppd[419]: local IP address 91.99.44.142
Aug 11 14:28:31 pppd[419]: remote IP address 91.99.0.1
Aug 11 14:28:31 pppd[419]: primary DNS address 213.217.60.172
Aug 11 14:28:31 pppd[419]: secondary DNS address 213.217.60.170
Aug 11 14:28:31 DSL-N10: ip-up starts
Aug 11 14:28:31 dnsmasq[314]: read /etc/hosts – 3 addresses
Aug 11 14:28:31 dnsmasq[314]: using nameserver 213.217.60.170#53
Aug 11 14:28:31 dnsmasq[314]: using nameserver 213.217.60.172#53
Aug 11 14:28:32 WAN Connection: WAN was restored.
Aug 11 14:28:43 PPPoE: connect to ISP
Aug 11 14:28:43 DSL-N10: ntp starts
Aug 11 14:44:17 ntp client: time is synchronized to time.nist.gov pool.ntp.org
Aug 11 14:57:40 WAN Connection: The cable for Ethernet was not plugged in.
Aug 11 14:58:38 pppd[419]: No response to 10 echo-requests
Aug 11 14:58:38 pppd[419]: Serial link appears to be disconnected.
Aug 11 14:58:38 pppd[419]: Connect time 30.2 minutes.
Aug 11 14:58:38 pppd[419]: Sent 3376 bytes, received 6667 bytes.
Aug 11 14:58:38 DSL-N10: auth-down starts
Aug 11 14:58:38 DSL-N10: ip-down starts
Aug 11 14:58:38 dnsmasq[314]: read /etc/hosts – 3 addresses
Aug 11 14:58:38 dnsmasq[314]: using nameserver 213.217.60.170#53
Aug 11 14:58:38 dnsmasq[314]: using nameserver 213.217.60.172#53
Aug 11 14:58:38 PPPoE: Disconnected
Aug 11 14:58:44 pppd[419]: Connection terminated.
Aug 11 14:58:44 pppd[419]: Sent PADT
Aug 11 14:58:44 pppd[419]: Modem hangup
Aug 11 14:58:52 WAN Connection: No response from the remote server.
Aug 11 14:59:29 pppd[419]: Timeout waiting for PADS packets
Aug 11 14:59:29 pppd[419]: Unable to complete PPPoE Discovery
Aug 11 14:59:40 pppd[419]: PPP session is 18865 (0x49b1)
Aug 11 14:59:40 pppd[419]: Connected to 00:30:88:1a:4e:59 via interface eth2.2.1
Aug 11 14:59:40 pppd[419]: Using interface ppp0
Aug 11 14:59:40 pppd[419]: Connect: ppp0 <--> eth2.2.1
Aug 11 14:59:41 pppd[419]: PAP authentication succeeded
Aug 11 14:59:41 pppd[419]: peer from calling number 00:30:88:1A:4E:59 authorized
Aug 11 14:59:41 DSL-N10: auth-up starts
Aug 11 14:59:41 pppd[419]: local IP address 91.99.6.79
Aug 11 14:59:41 pppd[419]: remote IP address 91.99.0.1
Aug 11 14:59:41 pppd[419]: primary DNS address 213.217.60.172
Aug 11 14:59:41 pppd[419]: secondary DNS address 213.217.60.170
Aug 11 14:59:41 DSL-N10: ip-up starts
Aug 11 14:59:41 dnsmasq[314]: read /etc/hosts – 3 addresses
Aug 11 14:59:41 dnsmasq[314]: using nameserver 213.217.60.170#53
Aug 11 14:59:41 dnsmasq[314]: using nameserver 213.217.60.172#53
Aug 11 14:59:41 WAN Connection: WAN was restored.
Aug 11 14:59:54 DSL-N10: ntp starts
Aug 11 14:59:54 PPPoE: connect to ISP
Aug 11 15:22:43 WAN Connection: The cable for Ethernet was not plugged in.
Aug 11 15:23:41 pppd[419]: No response to 10 echo-requests
Aug 11 15:23:41 pppd[419]: Serial link appears to be disconnected.
Aug 11 15:23:41 pppd[419]: Connect time 24.0 minutes.
Aug 11 15:23:41 pppd[419]: Sent 73541 bytes, received 259874 bytes.
Aug 11 15:23:41 DSL-N10: auth-down starts
Aug 11 15:23:41 DSL-N10: ip-down starts
Aug 11 15:23:41 dnsmasq[314]: read /etc/hosts – 3 addresses
Aug 11 15:23:41 dnsmasq[314]: using nameserver 213.217.60.170#53
Aug 11 15:23:41 dnsmasq[314]: using nameserver 213.217.60.172#53
Aug 11 15:23:41 PPPoE: Disconnected
Aug 11 15:23:47 pppd[419]: Connection terminated.
Aug 11 15:23:47 pppd[419]: Sent PADT
Aug 11 15:23:47 pppd[419]: Modem hangup
Aug 11 15:24:32 pppd[419]: Timeout waiting for PADO packets
Aug 11 15:24:32 pppd[419]: Unable to complete PPPoE Discovery
Aug 11 15:25:17 pppd[419]: Timeout waiting for PADO packets
Aug 11 15:25:17 pppd[419]: Unable to complete PPPoE Discovery
Aug 11 15:26:02 pppd[419]: Timeout waiting for PADO packets
Aug 11 15:26:02 pppd[419]: Unable to complete PPPoE Discovery
Aug 11 15:26:47 pppd[419]: Timeout waiting for PADO packets
Aug 11 15:26:47 pppd[419]: Unable to complete PPPoE Discovery
Aug 11 15:27:07 WAN Connection: No response from the remote server.
Aug 11 15:27:16 WAN Connection: The cable for Ethernet was not plugged in.
Aug 11 15:27:32 pppd[419]: Timeout waiting for PADO packets
Aug 11 15:27:32 pppd[419]: Unable to complete PPPoE Discovery
Aug 11 15:28:17 pppd[419]: Timeout waiting for PADO packets
Aug 11 15:28:17 pppd[419]: Unable to complete PPPoE Discovery
Aug 11 15:29:02 pppd[419]: Timeout waiting for PADO packets
Aug 11 15:29:02 pppd[419]: Unable to complete PPPoE Discovery
Aug 11 15:29:46 WAN Connection: No response from the remote server.
Aug 11 15:29:48 pppd[419]: Timeout waiting for PADO packets
Aug 11 15:29:48 pppd[419]: Unable to complete PPPoE Discovery
Aug 11 15:29:57 WAN Connection: The cable for Ethernet was not plugged in.
Aug 11 15:30:33 pppd[419]: Timeout waiting for PADO packets
Aug 11 15:30:33 pppd[419]: Unable to complete PPPoE Discovery
Aug 11 15:31:18 pppd[419]: Timeout waiting for PADO packets
Aug 11 15:31:18 pppd[419]: Unable to complete PPPoE Discovery
Aug 11 15:31:25 WAN Connection: No response from the remote server.
Aug 11 15:31:28 pppd[419]: PPP session is 8413 (0x20dd)
Aug 11 15:31:28 pppd[419]: Connected to 00:30:88:1a:4e:59 via interface eth2.2.1
Aug 11 15:31:28 pppd[419]: Using interface ppp0
Aug 11 15:31:28 pppd[419]: Connect: ppp0 <--> eth2.2.1
Aug 11 15:31:29 pppd[419]: PAP authentication succeeded
Aug 11 15:31:29 pppd[419]: peer from calling number 00:30:88:1A:4E:59 authorized
Aug 11 15:31:29 DSL-N10: auth-up starts
Aug 11 15:31:29 pppd[419]: local IP address 188.245.207.155
Aug 11 15:31:29 pppd[419]: remote IP address 91.99.0.1
Aug 11 15:31:29 pppd[419]: primary DNS address 213.217.60.172
Aug 11 15:31:29 pppd[419]: secondary DNS address 213.217.60.170
Aug 11 15:31:29 DSL-N10: ip-up starts
Aug 11 15:31:29 WAN Connection: WAN was restored.
Aug 11 15:31:29 dnsmasq[314]: read /etc/hosts – 3 addresses
Aug 11 15:31:29 dnsmasq[314]: using nameserver 213.217.60.170#53
Aug 11 15:31:29 dnsmasq[314]: using nameserver 213.217.60.172#53
Aug 11 15:31:54 DSL-N10: ntp starts
Aug 11 15:31:54 PPPoE: connect to ISP