ContributionsMost RecentMost LikesSolutionsRe: Internet keep dropping connection I didn't think I would have to come back to post again. I thought that was the last of it and I would sit back and enjoy my internet but alas I am here. Below is the internet disconnect log for today. I attempt to capture the sequence that led to the disconnect back to recovery then back to the disconnect and etc in hopes that the information will led to finding the root cause. Internet Drop Downstream Value Frequency 849000000 Hz Signal to Noise Ratio 37 dB QAM QAM256 Network Access Control Object OFF Power Level 1 dBmV The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading Upstream Value Channel ID 4 Frequency 25400000 Hz Ranging Service ID 2683 Symbol Rate 5.120 Msym/s Power Level 54 dBmV Time Priority Code Message 2013-07-30 18:44:25 3-Critical R02.0 No Ranging Response received - T3 time-out 2013-07-30 18:44:22 5-Warning SYNC: US Gain in cache is invalid: 0.00 2013-07-30 18:44:20 7-Information Starting Ranging On Channel 4 2013-07-30 18:44:16 7-Information Downstream Locked - Collecting Upstream Information 2013-07-30 18:44:13 7-Information Scanning frequency 837000000Hz 2013-07-30 18:43:44 3-Critical T04.0 SYNC Timing Synchronization failure - Failed to receive MAC SYNC frame within time-out period 2013-07-30 18:43:44 4-Error SYNC: Hardware didn't detect SYNC msg for 600ms during Initial Ranging 2013-07-30 18:43:44 7-Information Scanning frequency 133756000Hz 2013-07-30 18:43:44 3-Critical T01.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing 2013-07-30 18:43:44 7-Information Scanning frequency 145757000Hz 2013-07-30 18:43:44 3-Critical U02.0 UCD invalid or channel unusable 2013-07-30 18:43:24 7-Information Starting Ranging On Channel 1 2013-07-30 18:43:11 3-Critical R02.0 No Ranging Response received - T3 time-out 2013-07-30 18:43:04 5-Warning SYNC: US Gain in cache is invalid: 54.10 2013-07-30 18:43:03 7-Information Starting Ranging On Channel 4 2013-07-30 18:42:53 3-Critical R02.0 No Ranging Response received - T3 time-out 2013-07-30 18:42:36 5-Warning SYNC: US Gain in cache is invalid: 0.00 2013-07-30 18:42:35 7-Information Starting Ranging On Channel 3 2013-07-30 18:42:10 3-Critical R02.0 No Ranging Response received - T3 time-out 2013-07-30 18:42:06 5-Warning SYNC: US Gain in cache is invalid: 54.30 Event Log has reached maximum size. Older log entries are lost. Internet Came Back Downstream Value Frequency 837000000 Hz Signal to Noise Ratio 37 dB QAM QAM256 Network Access Control Object ON Power Level 0 dBmV The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading Upstream Value Channel ID 4 Frequency 25400000 Hz Ranging Service ID 2683 Symbol Rate 5.120 Msym/s Power Level 53 dBmV Time Priority Code Message 2013-07-30 18:44:53 7-Information DS multicast is not mapped to SAID 2013-07-30 18:44:53 7-Information B605.10 Map Reject - Downstream Traffic Flow Not Mapped to BPI+ SAID 2013-07-30 18:44:53 7-Information B601.0 SA Map State Machine Started 2013-07-30 18:44:50 7-Information DS multicast is not mapped to SAID 2013-07-30 18:44:50 7-Information B605.10 Map Reject - Downstream Traffic Flow Not Mapped to BPI+ SAID 2013-07-30 18:44:50 7-Information B601.0 SA Map State Machine Started 2013-07-30 18:44:48 7-Information SNMP: Working in SNMP V1/2c Only NmAccess mode 2013-07-30 18:44:48 7-Information DS multicast is not mapped to SAID 2013-07-30 18:44:48 7-Information B605.10 Map Reject - Downstream Traffic Flow Not Mapped to BPI+ SAID 2013-07-30 18:44:48 7-Information B601.0 SA Map State Machine Started 2013-07-30 18:44:46 7-Information INITIALIZATION COMPLETE - MODEM IS OPERATIONAL 2013-07-30 18:44:46 7-Information B401.0 Authorized 2013-07-30 18:44:46 6-Notice I401.0 TLV-11 - unrecognized OID 2013-07-30 18:44:46 7-Information SEC: Co-Signer CVC from configuration file was verified 2013-07-30 18:44:46 7-Information REGISTRATION COMPLETE - Waiting for Operational status 2013-07-30 18:44:45 7-Information REG: Capability type <15> isn't supported by CMTS 2013-07-30 18:44:45 7-Information Registration file - downloaded 2013-07-30 18:44:44 7-Information Trying to download Configuration file ... 2013-07-30 18:44:44 7-Information Time of day - retrieved 2013-07-30 18:44:43 7-Information DHCP - parameters acquired Down then recover Downstream Value Frequency 855000000 Hz Signal to Noise Ratio 38 dB QAM QAM256 Network Access Control Object OFF Power Level 1 dBmV The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading Upstream Value Channel ID 3 Frequency 32000000 Hz Ranging Service ID 2683 Symbol Rate 5.120 Msym/s Power Level 54 dBmV Time Priority Code Message 2013-07-31 19:05:26 7-Information Registration file - downloaded 2013-07-31 19:05:25 7-Information Trying to download Configuration file ... 2013-07-31 19:05:25 7-Information Time of day - retrieved 2013-07-31 19:05:24 7-Information DHCP - parameters acquired 2013-07-31 19:05:24 7-Information DHCP: ACK: Setting (*) CM TFTP Boot file: 150001_vm2.0_d.cfg 2013-07-31 19:05:24 7-Information DHCP: Setting CM IP address to: 10.10.194.222 2013-07-31 19:05:20 7-Information DHCP: Setting (*) CM Syslog Server address to: 10.254.254.254 2013-07-31 19:05:20 7-Information DHCP: Setting (*) CM Time Server address to: 172.19.65.31 2013-07-31 19:05:20 7-Information DHCP: Setting (*) CM Subnet mask to: 255.255.248.0 2013-07-31 19:05:20 7-Information DHCP: Setting (*) CM Gateway address to: 10.10.192.1 2013-07-31 19:05:20 7-Information DHCP: OFFER: Setting (*) CM TFTP Boot file: 150001_vm2.0_d.cfg 2013-07-31 19:05:20 7-Information DHCP select: Setting (*) CM TFTP Server address to: 172.23.1.90 2013-07-31 19:05:20 7-Information DHCP: Offered (*) CM IP address to: 10.10.194.222 2013-07-31 19:05:16 7-Information Trying to register through CMTS... 2013-07-31 19:05:16 7-Information SYNCHRONIZED - 855000000 Hz , ucd 4 2013-07-31 19:05:12 3-Critical R02.0 No Ranging Response received - T3 time-out 2013-07-31 19:05:02 5-Warning SYNC: US Gain in cache is invalid: 54.10 2013-07-31 19:05:01 7-Information Starting Ranging On Channel 4 2013-07-31 19:04:57 7-Information Downstream Locked - Collecting Upstream Information 2013-07-31 19:04:55 7-Information Scanning frequency 855000000Hz Event Log has reached maximum size. Older log entries are lost. Time Priority Code Message 2013-07-31 19:24:55 7-Information Starting Ranging On Channel 3 2013-07-31 19:24:43 3-Critical R02.0 No Ranging Response received - T3 time-out 2013-07-31 19:24:24 5-Warning SYNC: US Gain in cache is invalid: 54.10 2013-07-31 19:24:24 7-Information Starting Ranging On Channel 4 2013-07-31 19:24:20 7-Information Downstream Locked - Collecting Upstream Information 2013-07-31 19:24:17 7-Information Scanning frequency 855000000Hz 2013-07-31 19:24:04 3-Critical T04.0 SYNC Timing Synchronization failure - Failed to receive MAC SYNC frame within time-out period 2013-07-31 19:24:04 4-Error SYNC: Hardware didn't detect SYNC msg for 600ms during Initial Ranging 2013-07-31 19:24:04 7-Information Scanning frequency 103754000Hz 2013-07-31 19:24:03 3-Critical T01.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing 2013-07-31 19:24:03 7-Information Scanning frequency 91754000Hz 2013-07-31 19:24:03 3-Critical U02.0 UCD invalid or channel unusable 2013-07-31 19:23:55 7-Information Starting Ranging On Channel 3 2013-07-31 19:23:35 3-Critical R02.0 No Ranging Response received - T3 time-out 2013-07-31 19:23:22 5-Warning SYNC: US Gain in cache is invalid: 0.00 2013-07-31 19:23:22 7-Information Starting Ranging On Channel 2 2013-07-31 19:22:45 3-Critical R02.0 No Ranging Response received - T3 time-out 2013-07-31 19:22:36 5-Warning SYNC: US Gain in cache is invalid: 54.10 2013-07-31 19:22:35 7-Information Starting Ranging On Channel 4 2013-07-31 19:22:31 7-Information Downstream Locked - Collecting Upstream Information Event Log has reached maximum size. Older log entries are lost. Time Priority Code Message 2013-07-31 19:25:28 3-Critical R02.0 No Ranging Response received - T3 time-out 2013-07-31 19:25:26 5-Warning SYNC: US Gain in cache is invalid: 0.00 2013-07-31 19:25:25 7-Information Starting Ranging On Channel 2 2013-07-31 19:24:43 3-Critical R02.0 No Ranging Response received - T3 time-out 2013-07-31 19:24:24 5-Warning SYNC: US Gain in cache is invalid: 54.10 2013-07-31 19:24:24 7-Information Starting Ranging On Channel 4 2013-07-31 19:24:20 7-Information Downstream Locked - Collecting Upstream Information 2013-07-31 19:24:17 7-Information Scanning frequency 855000000Hz 2013-07-31 19:24:04 3-Critical T04.0 SYNC Timing Synchronization failure - Failed to receive MAC SYNC frame within time-out period 2013-07-31 19:24:04 4-Error SYNC: Hardware didn't detect SYNC msg for 600ms during Initial Ranging 2013-07-31 19:24:04 7-Information Scanning frequency 103754000Hz 2013-07-31 19:24:03 3-Critical T01.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing 2013-07-31 19:24:03 7-Information Scanning frequency 91754000Hz 2013-07-31 19:24:03 3-Critical U02.0 UCD invalid or channel unusable 2013-07-31 19:23:55 7-Information Starting Ranging On Channel 3 2013-07-31 19:23:35 3-Critical R02.0 No Ranging Response received - T3 time-out 2013-07-31 19:23:22 5-Warning SYNC: US Gain in cache is invalid: 0.00 2013-07-31 19:23:22 7-Information Starting Ranging On Channel 2 2013-07-31 19:22:45 3-Critical R02.0 No Ranging Response received - T3 time-out 2013-07-31 19:22:36 5-Warning SYNC: US Gain in cache is invalid: 54.10 Event Log has reached maximum size. Older log entries are lost. Downstream Value Frequency 855000000 Hz Signal to Noise Ratio 37 dB QAM QAM256 Network Access Control Object ON Power Level 1 dBmV The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading Upstream Value Channel ID 2 Frequency 37000000 Hz Ranging Service ID 2683 Symbol Rate 2.560 Msym/s Power Level 54 dBmV Time Priority Code Message 2013-07-31 19:25:58 4-Error IGMP: ERROR - Group address 0.0.0.1 is not a legal multicast 2013-07-31 19:25:51 7-Information SNMP: Working in SNMP V1/2c Only NmAccess mode 2013-07-31 19:25:51 4-Error IGMP: ERROR - Group address 0.0.0.1 is not a legal multicast 2013-07-31 19:25:50 7-Information INITIALIZATION COMPLETE - MODEM IS OPERATIONAL 2013-07-31 19:25:50 7-Information B401.0 Authorized 2013-07-31 19:25:49 6-Notice I401.0 TLV-11 - unrecognized OID 2013-07-31 19:25:49 7-Information SEC: Co-Signer CVC from configuration file was verified 2013-07-31 19:25:49 7-Information REGISTRATION COMPLETE - Waiting for Operational status 2013-07-31 19:25:48 7-Information REG: Capability type <15> isn't supported by CMTS 2013-07-31 19:25:48 7-Information Registration file - downloaded 2013-07-31 19:25:47 7-Information Trying to download Configuration file ... 2013-07-31 19:25:47 7-Information Time of day - retrieved 2013-07-31 19:25:47 7-Information DHCP - parameters acquired 2013-07-31 19:25:47 7-Information DHCP: ACK: Setting (*) CM TFTP Boot file: 150001_vm2.0_d.cfg 2013-07-31 19:25:47 7-Information DHCP: Setting CM IP address to: 10.10.194.222 2013-07-31 19:25:43 7-Information DHCP: Setting (*) CM Syslog Server address to: 10.254.254.254 2013-07-31 19:25:43 7-Information DHCP: Setting (*) CM Time Server address to: 172.19.65.31 2013-07-31 19:25:43 7-Information DHCP: Setting (*) CM Subnet mask to: 255.255.248.0 2013-07-31 19:25:43 7-Information DHCP: Setting (*) CM Gateway address to: 10.10.192.1 2013-07-31 19:25:43 7-Information DHCP: OFFER: Setting (*) CM TFTP Boot file: 150001_vm2.0_d.cfg Event Log has reached maximum size. Older log entries are lost. Internet Back up Priority Code Message 2013-07-31 19:25:58 4-Error IGMP: ERROR - Group address 0.0.0.1 is not a legal multicast 2013-07-31 19:25:51 7-Information SNMP: Working in SNMP V1/2c Only NmAccess mode 2013-07-31 19:25:51 4-Error IGMP: ERROR - Group address 0.0.0.1 is not a legal multicast 2013-07-31 19:25:50 7-Information INITIALIZATION COMPLETE - MODEM IS OPERATIONAL 2013-07-31 19:25:50 7-Information B401.0 Authorized 2013-07-31 19:25:49 6-Notice I401.0 TLV-11 - unrecognized OID 2013-07-31 19:25:49 7-Information SEC: Co-Signer CVC from configuration file was verified 2013-07-31 19:25:49 7-Information REGISTRATION COMPLETE - Waiting for Operational status 2013-07-31 19:25:48 7-Information REG: Capability type <15> isn't supported by CMTS 2013-07-31 19:25:48 7-Information Registration file - downloaded 2013-07-31 19:25:47 7-Information Trying to download Configuration file ... 2013-07-31 19:25:47 7-Information Time of day - retrieved 2013-07-31 19:25:47 7-Information DHCP - parameters acquired 2013-07-31 19:25:47 7-Information DHCP: ACK: Setting (*) CM TFTP Boot file: 150001_vm2.0_d.cfg 2013-07-31 19:25:47 7-Information DHCP: Setting CM IP address to: 10.10.194.222 2013-07-31 19:25:43 7-Information DHCP: Setting (*) CM Syslog Server address to: 10.254.254.254 2013-07-31 19:25:43 7-Information DHCP: Setting (*) CM Time Server address to: 172.19.65.31 2013-07-31 19:25:43 7-Information DHCP: Setting (*) CM Subnet mask to: 255.255.248.0 2013-07-31 19:25:43 7-Information DHCP: Setting (*) CM Gateway address to: 10.10.192.1 2013-07-31 19:25:43 7-Information DHCP: OFFER: Setting (*) CM TFTP Boot file: 150001_vm2.0_d.cfg Event Log has reached maximum size. Older log entries are lost. Re: Internet keep dropping connection I don't have any kind of splitter or amplifier on the coaxial line. My connection comes straight from the wall to my modem. For the past 48 hours my internet connection seems to be doing fine. I have not had any drop connection since I posted my modem log. I will come back and post here if I run into the same issue. Thank you for you help Ed H. Internet keep dropping connection For the pass few days my internet keep dropping connection. My modem reset, stuck blinking on Send, then reset and back to blinking on Send. I'm not sure if the power cycle is what eventually got my connection up or the waiting but here is my modem information. Thanks Model Name: SB5120 Modem Name: Motorola Serial Number: 122103433415614800000000 Software Version: SB5120-2.19.0.16-SCM00-NOSH Hardware Version: 1 MIB Version: II GUI Version: 1.0 VxWorks Version: 5.4 Configuration Frequency Plan: North American Standard/HRC/IRC Upstream Channel ID: 2 Favorite Frequency (Hz): 855000000 Downstream Value Frequency 855000000 Hz Signal to Noise Ratio 38 dB QAM QAM256 Network Access Control Object OFF Power Level 1 dBmV The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading Upstream Value Channel ID 3 Frequency 32000000 Hz Ranging Service ID 2683 Symbol Rate 5.120 Msym/s Power Level 54 dBmV Time Priority Code Message 1970-01-01 00:01:30 3-Critical R02.0 No Ranging Response received - T3 time-out 1970-01-01 00:01:19 5-Warning SYNC: US Gain in cache is invalid: 0.00 1970-01-01 00:01:17 7-Information Starting Ranging On Channel 1 1970-01-01 00:01:09 3-Critical R02.0 No Ranging Response received - T3 time-out 1970-01-01 00:01:01 5-Warning SYNC: US Gain in cache is invalid: 54.10 1970-01-01 00:01:00 7-Information Starting Ranging On Channel 4 1970-01-01 00:00:41 3-Critical R02.0 No Ranging Response received - T3 time-out 1970-01-01 00:00:37 5-Warning SYNC: US Gain in cache is invalid: 54.30 1970-01-01 00:00:36 7-Information Starting Ranging On Channel 2 1970-01-01 00:00:32 7-Information Downstream Locked - Collecting Upstream Information 1970-01-01 00:00:29 7-Information Scanning frequency 855000000Hz 1970-01-01 00:00:01 7-Information Trying to synchronize ... 1970-01-01 00:00:01 7-Information Vendor Cold Start 2013-07-24 18:37:04 7-Information Scanning frequency 829791000Hz 2013-07-24 18:36:22 3-Critical T01.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing 2013-07-24 18:36:22 7-Information Scanning frequency 855000000Hz 2013-07-24 18:36:22 3-Critical T04.0 SYNC Timing Synchronization failure - Failed to receive MAC SYNC frame within time-out period 2013-07-24 18:36:22 4-Error SYNC: Hardware didn't detect SYNC msg for 600ms during Initial Ranging 2013-07-24 18:36:13 3-Critical R02.0 No Ranging Response received - T3 time-out 2013-07-24 18:36:05 5-Warning SYNC: US Gain in cache is invalid: 0.00 Event Log has reached maximum size. Older log entries are lost.