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micropitt
Premium
join:2002-05-23
Cumberland, MD

1 recommendation

T3 time-out

Since several month my Modem (Motorola 5120, same before with Motorola 4100) is loosing connection at least 4 or 5 times a day. Below i have posted some of the Modems logs. The Modem then starts re-booting a lot and it takes up to 10 minutes until it is working again. However, if i unplug the power from the Modem and the coaxial cable, then plug everything back in it will work again right away. Any suggestions or ideas?

060622151158 7-Information INITIALIZATION COMPLETE - MODEM IS OPERATIONAL
060622151158 7-Information SNMP: Working in SNMP V1/2c Only NmAccess mode
060622151158 7-Information 7 I500.0 Registration Completed
060622151158 7-Information REGISTRATION COMPLETE - Waiting for Operational status
060622151158 7-Information 7 D509.0 Retrieved TFTP Config SUCCESS
060622151158 7-Information Registration file - downloaded
060622151158 5-Warning TFTP: Configuration file unrecognized TLV type is ignored.
060622151157 7-Information Trying to download Configuration file ...
060622151157 7-Information 7 D507.0 Retrieved Time....... SUCCESS
060622151157 7-Information Time of day - retrieved
060622151156 7-Information 7 D511.0 Retrieved DHCP .......... SUCCESS
060622151156 7-Information DHCP - parameters acquired
060622151156 5-Warning D03.0 DHCP WARNING - Non-critical field invalid in response
060622151156 5-Warning DHCP: Missing Syslog server
060622151155 7-Information 7 T500.0 Acquired Upstream .......... SUCCESS
060622151155 7-Information Trying to register through CMTS...
060622151155 7-Information SYNCHRONIZED - 681000000 Hz , ucd 1
060622151149 3-Critical R02.0 No Ranging Response received - T3 time-out
060622151147 7-Information Starting Ranging On Channel 1
060622151143 7-Information Downstream Locked - Collecting Upstream Information
060622151143 7-Information 7 T501.0 Acquired Downstream (681000000 Hz)........ SUCCESS
060622151141 7-Information Scanning frequency 681000000Hz
060622151141 7-Information Trying to synchronize ...
060622151141 7-Information Synchronization LOST
060622151141 3-Critical R03.0 Ranging Requests Retries exhausted
060622151140 3-Critical R02.0 No Ranging Response received - T3 time-out
060622151139 3-Critical R02.0 No Ranging Response received - T3 time-out
060622151138 3-Critical R02.0 No Ranging Response received - T3 time-out
060622151137 3-Critical R02.0 No Ranging Response received - T3 time-out
060622151136 3-Critical R02.0 No Ranging Response received - T3 time-out
060622151135 3-Critical R02.0 No Ranging Response received - T3 time-out
060622151134 3-Critical R02.0 No Ranging Response received - T3 time-out
060622151133 3-Critical R02.0 No Ranging Response received - T3 time-out
060622151132 3-Critical R02.0 No Ranging Response received - T3 time-out
060622151131 3-Critical R02.0 No Ranging Response received - T3 time-out
060622151130 3-Critical R02.0 No Ranging Response received - T3 time-out
060622151129 3-Critical R02.0 No Ranging Response received - T3 time-out
060622151128 3-Critical R02.0 No Ranging Response received - T3 time-out
060622151127 3-Critical R02.0 No Ranging Response received - T3 time-out
060622151126 3-Critical R02.0 No Ranging Response received - T3 time-out
060622142631 7-Information SNMP: Working in SNMP V1/2c Only NmAccess mode
060622142631 7-Information INITIALIZATION COMPLETE - MODEM IS OPERATIONAL
060622142631 7-Information 7 I500.0 Registration Completed

------------------------------------------------------
Downstream Value

Frequency 681000000 Hz
Signal to Noise Ratio 37 dB
QAM 256
Network Access Control Object ON
Power Level 4 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 1
Frequency 31008000 Hz
Ranging Service ID 97
Symbol Rate 1.280 Msym/s
Power Level 55 dBmV


EagleMaster
People Need A Life Other Than Internet
Premium,MVM
join:2003-02-10
Glen Richey, PA
your upstream is running close to the max allowed. More than likely from the log of the modem the upstream is maxing out and causing the modem to drop.
--
"Life is like a story told by an idiot, half of it dosen't make sense, and the other half is just retarded..." (Unknown Author)

micropitt
Premium
join:2002-05-23
Cumberland, MD
And how do I prevent the upstream to max out?

AbbTek

join:2006-08-23
Miami Beach, FL
How many splitters are you using? Are you using any 3way splitters? If so check to see if the modem is connected to the 7db down leg, if yes move it to the 3.5 db leg.

micropitt
Premium
join:2002-05-23
Cumberland, MD
Yes, I'm using 1 splitter. I'm not 100% sure if the modem is on the 3.5db leg. It is kind of difficult to follow the cables thru the house. I just looked at that splitter and I might have to buy another one. The one I have is 5mhz - 900mhz. I'm not sure if I need a higher mhz?

micropitt
Premium
join:2002-05-23
Cumberland, MD
reply to AbbTek
Here is my current downstream and upstream:

downstream:

Frequency 681000000 Hz
Signal to Noise Ratio 37 dB
QAM 256
Network Access Control Object ON
Power Level 4 dBmV
---------------------------------------

upstream:

Channel ID 1
Frequency 31008000 Hz
Ranging Service ID 97
Symbol Rate 1.280 Msym/s
Power Level 54 dBmV

micropitt
Premium
join:2002-05-23
Cumberland, MD
reply to AbbTek
Earlier today I had this in my logs:

060823151622 7-Information INITIALIZATION COMPLETE - MODEM IS OPERATIONAL
060823151622 7-Information SNMP: Working in SNMP V1/2c Only NmAccess mode
060823151622 7-Information 7 I500.0 Registration Completed
060823151622 7-Information REGISTRATION COMPLETE - Waiting for Operational status
060823151622 7-Information 7 D509.0 Retrieved TFTP Config SUCCESS
060823151622 7-Information Registration file - downloaded
060823151622 5-Warning TFTP: Configuration file unrecognized TLV type is ignored.
060823151621 7-Information Trying to download Configuration file ...
060823151621 7-Information 7 D507.0 Retrieved Time....... SUCCESS
060823151621 7-Information Time of day - retrieved
060823151620 7-Information 7 D511.0 Retrieved DHCP .......... SUCCESS
060823151620 7-Information DHCP - parameters acquired
060823151620 5-Warning D03.0 DHCP WARNING - Non-critical field invalid in response
060823151620 5-Warning DHCP: Missing Syslog server
060823151619 7-Information 7 T500.0 Acquired Upstream .......... SUCCESS
060823151619 7-Information Trying to register through CMTS...
060823151619 7-Information SYNCHRONIZED - 681000000 Hz , ucd 1
060823151608 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151552 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151538 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151514 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151514 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151513 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151510 7-Information Starting Ranging On Channel 1
060823151459 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151458 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151436 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151432 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151430 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151427 5-Warning SYNC: US Gain wasn't found in cache
060823151427 7-Information Starting Ranging On Channel 3
060823151402 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151342 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151334 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151327 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151321 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151320 3-Critical R02.0 No Ranging Response received - T3 time-out
060823151319 7-Information Starting Ranging On Channel 1
060823151315 7-Information Downstream Locked - Collecting Upstream Information
060823151315 7-Information 7 T501.0 Acquired Downstream (681000000 Hz)........ SUCCESS
060823151312 7-Information Scanning frequency 681000000Hz
060823151312 7-Information Trying to synchronize ...
060823151312 7-Information Synchronization LOST
060823151312 3-Critical R07.0 Unicast Ranging Received Abort Response - Re-initializing MAC
060823151255 3-Critical R02.0 No Ranging Response received - T3 time-out