US Cable Support > Comcast HSI > all of a sudden stops then back on

reply to zavetsky

Re: all of a sudden stops then back on

said by zavetsky:

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Thanks TD....I just got a new modem today...took the RCA back to Comcast and they gave me a Scientific Atlanta DPC2100....Here is what it is reading...

Name
WebSTAR DPC2100
Modem Serial Number
102526361
Hardware Version
v1.1
Software Version
v2.0.1r1135(dpc2100-v201r1135a.bin)
Receive Power Level
-17.6 dBmV
Transmit Power Level
46.8 dBmV
Cable Modem Status
Operational

---

Thnaks TD....Can you be a little more specific?? I would like to tell the Comcast folks this ....Supposedly, they are sending a truck to check the line from pole to my house next weeke, while I am not there...(I cant take off work for 4 hours....I have a $92.00 cable bill!)

They were supposed to do this last time, but instead called and when I wasnt home they didnt come....The guy this time assures me that he will email the line tech in my area and tell him to check levels without me home....

SO, I thought I would send this info to them , if you think that would help...or at least to let them know that I know that the levels are bad.....

Is it my up or down levels that are bad or both?? I seem to have service for the time being.....Could these bad levels also explain the faint rolling grey lines in my TV picture??

Thanks again!

Your downstream pwr. level is to low at -17 dBmV maxs is -15 dBmV sooner or later this is going to cause you problems again.I wouldn't call until it starts dropping connection again.

Check your signal levels again today and if their still bad,start a new thread of your own,so your problem doesn't get lost in this one.

Also write down the information in this FAQ,then you can tell right away when your signals are out of specs.
»/faq/7124

This is the only thing i could find on the TV picture problem.I don't know if it will help you.Also you may want to check your splitters.

»Cable Modems and Wiring Issues »Why does every TV in my house have a horizontal bar that moves up the screen?

Thanks...

Yeah, after reading that page, no wonder I am getting dropouts...It has done it twice today already on the new modem, with no router.

last numbers were 20.1/ 44.8 and 16.2/44.8

Should I call and tell Comcast these numbers or will they laugh at me??

DZ

said by zavetsky:

---

Thanks...

Yeah, after reading that page, no wonder I am getting dropouts...It has done it twice today already on the new modem, with no router.

last numbers were 20.1/ 44.8 and 16.2/44.8

Should I call and tell Comcast these numbers or will they laugh at me??

DZ

---

reply to spike010101
woohoooooo i finaly made a forum thread that will get popular!! cuz a few ppl do it

Yes Spike you finally made the big time.Love the new avatar.:)

reply to spike010101
Well, Comcast was here today while I was at work...the note I left is gone and they droppeda part at my curb...there was a message on my machine that said "We'll call you back"..that was at 10am...nothing since.....

The line is still in my TV picture, my modem readings are still around the -15/45 ballpark, and nothing outside looks like it was touched.

Go figure.

My service hasnt dropped yet today though, far as I can tell.

Why don't you give us a look at your signal levels again.
»Comcast High Speed Internet FAQ »How can I view my Modem's Signal Levels, Firmware Version & Log Entries?

I've been having problems all week with losing my connection. I go into my router and release the DHCP and renew it and I take on a new ip address and everything is fine. Sometimes does it 4-5 times a day. Really annoying me at this point. Any suggestions let me know.

New Haven, CT

Signal:
Frequency 621000000 Hz Locked
Signal to Noise Ratio 34 dB
QAM 64
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 3
Frequency 24784000 Hz Ranged
Ranging Service ID 752
Symbol Rate 2.560 Msym/s
Power Level 40 dBmV

Config:
Frequency Plan: North American Standard/HRC/IRC
CM Ethernet IP Address: 192.168.100.1
Upstream Channel ID: 3
Frequency (Hz): 621000000
DHCP Server Enabled
The SURFboard cable modem .....

Logs:
040705235538 7-Information I503.0 Cable Modem is OPERATIONAL
040705235536 7-Information F502.1 Bridge Forwarding Enabled.
040705235536 7-Information F502.3 Bridge Learning Enabled.
040705235536 7-Information B0.0 Baseline Privacy
040705235535 7-Information I500.0 Registration Completed
040705235535 7-Information I0.0 REG-RSP Registration Response
040705235535 7-Information I0.0 REG-REQ Registration Request
040705235535 7-Information D509.0 Retrieved TFTP Config File SUCCESS
040705235535 7-Information D507.0 Retrieved Time....... SUCCESS
************ 7-Information D511.0 Retrieved DHCP .......... SUCCESS
************ 5-Warning D520.2 DHCP Attempt# 1 BkOff: 4s Tot DSC:1 OFF:1 REQ:1 ACK:1
************ 7-Information D0.0 DHCP CM Net Configuration download and Time of Day
************ 7-Information T500.0 Acquired Upstream .......... SUCCESS
************ 8-Debug T503.1 Acquire US with status OK, powerLevel 38, tempSid 752
************ 8-Debug T505.0 Acquired Upstream with status OK
************ 7-Information T501.0 Acquired Downstream (621000000 Hz)........ SUCCESS
************ 8-Debug T509.0 Acquired DS with status OK, DS Freq 621000000, US Id 3
************ 7-Information I510.0 *** BOOTING *** SB3100-3.2.17-SCM00-NOSHELL
040701035530 7-Information F502.1 Bridge Forwarding Enabled.
040701035530 7-Information F502.3 Bridge Learning Enabled.
040701035530 7-Information B0.0 Baseline Privacy
040701035528 7-Information I500.0 Registration Completed
040701035528 7-Information I0.0 REG-RSP Registration Response
040701035528 7-Information I0.0 REG-REQ Registration Request
040701035528 7-Information D509.0 Retrieved TFTP Config File SUCCESS
040701035528 7-Information D507.0 Retrieved Time....... SUCCESS
************ 7-Information D511.0 Retrieved DHCP .......... SUCCESS
************ 5-Warning D520.2 DHCP Attempt# 1 BkOff: 4s Tot DSC:1 OFF:1 REQ:1 ACK:1
************ 7-Information D0.0 DHCP CM Net Configuration download and Time of Day
************ 7-Information T500.0 Acquired Upstream .......... SUCCESS
************ 8-Debug T503.1 Acquire US with status OK, powerLevel 39, tempSid 752
************ 8-Debug T505.0 Acquired Upstream with status OK
************ 7-Information T501.0 Acquired Downstream (621000000 Hz)........ SUCCESS
************ 8-Debug T509.0 Acquired DS with status OK, DS Freq 621000000, US Id 3
************ 7-Information I510.0 *** BOOTING *** SB3100-3.2.17-SCM00-NOSHELL
040701035456 7-Information H501.2 HFC: Shutting Downstream Down
040701035456 2-Alert T507.0 Received Async Error Range Failed
040701035455 3-Critical H501.8 HFC: T4 Timer Expired
040701035407 7-Information I503.0 Cable Modem is OPERATIONAL
040701035405 7-Information F502.1 Bridge Forwarding Enabled.
040701035405 7-Information F502.3 Bridge Learning Enabled.
040701035405 7-Information B0.0 Baseline Privacy
040701035403 7-Information I500.0 Registration Completed
040701035403 7-Information I0.0 REG-RSP Registration Response
040701035403 7-Information I0.0 REG-REQ Registration Request
040701035403 7-Information D509.0 Retrieved TFTP Config File SUCCESS
040701035403 7-Information D507.0 Retrieved Time....... SUCCESS
************ 7-Information D511.0 Retrieved DHCP .......... SUCCESS
************ 5-Warning D520.2 DHCP Attempt# 1 BkOff: 4s Tot DSC:1 OFF:1 REQ:1 ACK:1
************ 7-Information D0.0 DHCP CM Net Configuration download and Time of Day
************ 7-Information T500.0 Acquired Upstream .......... SUCCESS
************ 8-Debug T503.1 Acquire US with status OK, powerLevel 40, tempSid 752
************ 8-Debug T505.0 Acquired Upstream with status OK
************ 3-Critical H501.13 HFC: Invalid UCD
************ 3-Critical H501.19 HFC: UCD. Invalid minislot size.
************ 7-Information T501.0 Acquired Downstream (621000000 Hz)........ SUCCESS
************ 8-Debug T509.0 Acquired DS with status OK, DS Freq 621000000, US Id 3
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 783000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 777000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 771000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 765000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 759000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 753000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 747000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 741000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 735000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 729000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 723000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 717000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 711000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 705000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 699000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 693000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 687000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 681000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 675000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 669000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 663000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 657000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 651000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 645000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 639000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 633000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 627000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 621000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 615000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 609000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 603000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 597000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 591000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 585000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 579000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 573000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 567000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 561000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 555000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 549000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 543000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 537000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 531000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 525000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 519000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 513000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 507000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 501000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 495000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 489000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 483000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 477000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 471000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 465000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 459000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 453000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 447000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 441000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 435000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 429000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 423000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 417000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 411000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 405000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 621000000, US Id 0
************ 7-Information I510.0 *** BOOTING *** SB3100-3.2.17-SCM00-NOSHELL
040701035045 7-Information H501.2 HFC: Shutting Downstream Down
040701035045 2-Alert T507.0 Received Async Error Range Failed
040701035044 3-Critical H501.8 HFC: T4 Timer Expired
040701035044 7-Information H501.11 HFC:Unable to recover FEC lock
040701035041 3-Critical H501.16 HFC: FEC LOCK recovery failed
040701035037 3-Critical H501.16 HFC: FEC LOCK recovery failed
040701035034 3-Critical H501.16 HFC: FEC LOCK recovery failed
040701035030 3-Critical H501.16 HFC: FEC LOCK recovery failed
040701035026 3-Critical H501.16 HFC: FEC LOCK recovery failed
040701035023 3-Critical H501.16 HFC: FEC LOCK recovery failed
040701035019 3-Critical H501.16 HFC: FEC LOCK recovery failed
040701035015 3-Critical H501.16 HFC: FEC LOCK recovery failed
040701035012 3-Critical H501.16 HFC: FEC LOCK recovery failed
040701035008 7-Information I503.0 Cable Modem is OPERATIONAL
040701035006 7-Information F502.1 Bridge Forwarding Enabled.
040701035006 7-Information F502.3 Bridge Learning Enabled.
040701035006 7-Information B0.0 Baseline Privacy
040701035004 7-Information I500.0 Registration Completed
040701035004 7-Information I0.0 REG-RSP Registration Response
040701035004 7-Information I0.0 REG-REQ Registration Request
040701035004 7-Information D509.0 Retrieved TFTP Config File SUCCESS
040701035004 7-Information D507.0 Retrieved Time....... SUCCESS
************ 7-Information D511.0 Retrieved DHCP .......... SUCCESS
************ 5-Warning D520.2 DHCP Attempt# 1 BkOff: 4s Tot DSC:1 OFF:1 REQ:1 ACK:1
************ 7-Information D0.0 DHCP CM Net Configuration download and Time of Day
************ 7-Information T500.0 Acquired Upstream .......... SUCCESS
************ 8-Debug T503.1 Acquire US with status OK, powerLevel 40, tempSid 863
************ 8-Debug T505.0 Acquired Upstream with status OK
************ 7-Information T501.0 Acquired Downstream (621000000 Hz)........ SUCCESS
************ 8-Debug T509.0 Acquired DS with status OK, DS Freq 621000000, US Id 5
************ 7-Information I510.0 *** BOOTING *** SB3100-3.2.17-SCM00-NOSHELL
************ 7-Information H501.17 HFC: UCD Minislot size change.
************ 7-Information T501.0 Acquired Downstream (621000000 Hz)........ SUCCESS
************ 8-Debug T509.0 Acquired DS with status OK, DS Freq 621000000, US Id 6
************ 7-Information I510.0 *** BOOTING *** SB3100-3.2.17-SCM00-NOSHELL
************ 7-Information H501.17 HFC: UCD Minislot size change.
************ 3-Critical H501.13 HFC: Invalid UCD
************ 3-Critical H501.19 HFC: UCD. Invalid minislot size.
************ 7-Information T501.0 Acquired Downstream (621000000 Hz)........ SUCCESS
************ 8-Debug T509.0 Acquired DS with status OK, DS Freq 621000000, US Id 3
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 615000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 609000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 603000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 597000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 591000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 585000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 579000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 573000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO FEC lock, DS Freq 567000000, US Id 0
************ 8-Debug T509.0 Acquired DS with status NO SYNC, DS Freq 561000000, US Id 0

reply to spike010101

Spike,
As you know you have an upstream signal problem. I assume it gets worse in the heat of the day. This is pretty much a job for comcast. If your TV signal on the lower channels (2-7) gets kind of fuzzy then call this in as a fuzzy tv signal problem. If your tv picture is clear and sharp, then call comcast internet support and tell them you have intermittent disconnects that last for 15 minutes or more and then come back. If it always happens on hot afternoons, make sure they know that too.
Good Luck
--
Registered Bandwidth Offender #40812

reply to spike010101

Have your Mom call Spike,they ask for information that only she has.You will have to explain to her what the problems are.Your the computer expert in the house.Working together you should be able to get a tech out to fix the problem.

reply to spike010101
ok ok ok. its been over 2 weeks. she hasn't called. this weekend she is!! for shuuuuuuuure. and its not goin up by the heat of the day. its been at 58 and only at 58 for 2 weeks. nomatter wat i do its 58lol. it was ok at 41-43 for a week. then it starts to hate me again. ill tell u what happens when they come.

Just for frame of reference, I've had 58dB upstream for about 2 years now and never had any problems. By this, I mean that my speeds and, more importantly connectivity are flawless. My modem might have to work like a horse to get me such, but it does (Motorola SB4200).

Sometimes signal strengths can be a little overvalued.

said by draven:

---

Just for frame of reference, I've had 58dB upstream for about 2 years now and never had any problems. By this, I mean that my speeds and, more importantly connectivity are flawless. My modem might have to work like a horse to get me such, but it does (Motorola SB4200).

Sometimes signal strengths can be a little overvalued.

---

My upstream power level does not change at all in the heat of the day.It stays solid at 45dBmV.

But my downstream power will go from -4dBmV in the cool of the morning to -7dBmV in the heat of the afternoon.

My SNR stays between 34dB and 35dB.

I only bring this up because i thought it was upstream power that was heat effected.

said by oldTDNickell5:

---

I only bring this up because i thought it was upstream power that was heat effected.

---

Thanks imrf that answers my question on that.I'm guess you mean SNR also?

Yes, that my be effected too.