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Cable modem lights blinking like crazy »
« Am I asking for trouble?  
AuthorAll Replies

TroyL65

join:2003-09-08
Tacoma, WA

Intermittent Internet

For the last two weeks I been having Intermittent Internet service and I have to reboot my cable modem to get back online. I had 3 comcast techs come out and they all said line and computer are fine. We switched modems and everything. No network just running straight to the cable modem from computer. Tried different computers and different cables. Anyone having the same problem?


Big_D
Premium
join:2003-06-02
Augusta, GA
Are you loosing sync when you loose your service?


Nerdtalker
Working Hard, Or Hardly Working?
Premium,MVM
join:2003-02-18
Tucson, AZ
clubs:
reply to TroyL65
What are your signal levels and logs? Go to »192.168.100.1 to get this info.

TroyL65

join:2003-09-08
Tacoma, WA

reply to TroyL65
Doc1.zip 37,333 bytes
here is my signal levels
(Doc1.doc)
No i don't loose any lights but if i come back after a while it works again.


Big_D
Premium
join:2003-06-02
Augusta, GA
Signal levels look good. Are you able to ping your gateway when its down?
--
You want the truth? You can't handle the truth!

usualpulp

join:2001-03-08
Dallas, TX
reply to TroyL65
im having this same exact problem, and cant get any kind of straight answer as to the cause, all connections and signals are fine.


k0fcc
Kilo Zero F C C
Premium
join:2000-09-05
Longmont, CO

reply to TroyL65
I know I am in a big way. I'm in between homes and am on comcrap temporarily before going back to Mesanetworks.

-------

Event Description
First Time
Last Time
Counts

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
00:00:02 - 01/01/1970
15:27:09 - 08/22/2003
1102

SYNC Timing Synchronization failure - Failed to acquire FEC framing
00:00:03 - 01/01/1970
15:27:11 - 08/22/2003
21898

No Ranging Response received - T3 time-out
00:00:04 - 01/01/1970
00:00:04 - 01/01/1970
304

Started Unicast Maintenance Ranging - No Response received - T3 time-out
09:04:36 - 08/10/2003
08:01:41 - 09/21/2003
698

SYNC Timing Synchronization failure - Loss of Sync
22:00:51 - 08/12/2003
12:20:10 - 08/22/2003
2

Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 timeout
22:01:08 - 08/12/2003
12:20:35 - 08/22/2003
3

SYNC Timing Synchronization failure - Failed to receive MAC SYNC frame within time-out period
22:01:53 - 08/12/2003
15:26:28 - 08/22/2003
24

Init RANGING Critical Ranging Request Retries exhausted
22:05:25 - 08/12/2003
15:26:02 - 08/22/2003
16

ToD request sent- No Response received
01:09:00 - 09/19/2003
01:09:00 - 09/19/2003
1

* Times of Jan 1 1970 indicate the event was received when the modem was not connected to a Time Server.
--
»mac.stan4d.net

TroyL65

join:2003-09-08
Tacoma, WA
reply to TroyL65
when i ping the gateway my internet works again after i ping it.. make any sense???


Big_D
Premium
join:2003-06-02
Augusta, GA

Actually your not alone. I can't remember where the thread is, but not too long ago there was a discussion about running a batch program that kept pinging the gateway to keep the connection alive. I can't say why this happens, but at least you have a "band-aid" until comcast fixes it.
--
You want the truth? You can't handle the truth!


k0fcc
Kilo Zero F C C
Premium
join:2000-09-05
Longmont, CO

reply to k0fcc
Hey, found my answer!

It turns out that you can't turn-up internet on the first jack on the splitter. The techs have to give that to someone who's tv only, they put me another jack (and this has happened now to several people) and the modem has been very stable.
--
»mac.stan4d.net


mbernste
Boosted
Premium,MVM
join:2001-06-30
Piscataway, NJ
·Comcast
·Optimum Online

said by k0fcc See Profile:
Hey, found my answer!

Keep searching...
said by k0fcc See Profile:

It turns out that you can't turn-up internet on the first jack on the splitter.
My Internet is on the very first split from the main line. Been that way since I got it in 1997 and I've had no problems with connectivity due to signal issues.
--
Tell Comcast to keep or get TechTV: »home.comcast.net/~mbernste/ttv.html

UPDATED: Watch Comcast Executives Get Grilled: »home.comcast.net/~mbernste/catv_hearing.html

ispycable

join:2003-10-09
Gig Harbor, WA

TroyL65.. Is your computer IP addy a 12.206.xx.xx 0r 67.160.xx.xx?

And have you tried surfing with just the IP address of the site instead of the name.

66.218.71.87, 66.218.71.88, 66.218.70.48, 66.218.71.92
66.218.71.89, 66.218.71.91, 66.218.71.84, 66.218.71.93
www.yahoo.com

We are working this issue.


halfband
Premium
join:2002-06-01
Huntsville, AL
reply to TroyL65
Can you post another copy of the signal levels. A snapshot taken why you are having the problem would be best. I want to see what your downstream power level is.
--
Registered Bandwidth Offender #40812


not quite right
I'm not cool enough to be a Mac person

join:2001-06-23
Puyallup, WA

 reply to TroyL65
Hi TroyL65,
Are you still having connection issues? I was having the same problem here in Puyallup, but I had just installed a wireless network, and blamed that for my problems. Now it seems like this is a Comcast issue because I was waiting until my next days off from work to concentrate on what was wrong with my networking, and before I had done anything I stopped dropping my connection, and it's been solid for 2-3 days now. Go figure?

billhod8

join:2001-03-13
Menlo Park, CA

I've been having a similar problem. My area (SF Bay, around Menlo Park), just got Comcast HSI. I decided to try it on one of the special offers of $20/month for 6 months. When it works, it's great.

However, it keeps going down intermittently. It will work for a few days just fine, and then it will seem to lose its connection. Usually, I just have to power off the SB5100 modem, wait 30 seconds, and then it comes back. But not always.

I live in a townhouse with 2 other tenants, so I'm not sure if this has anything to do with it. I've had a tech come out twice to look at the line, and they both said it seems fine, if a little weak.

It's gotten so annoying that I'm thinking of dumping it, going back to my old (slower) SBC DSL, and waiting until they are done "beta testing" my area. Does anyone else have this problem? Could it be a modem problem? This is the one thing I (or the techs from Comcast) haven't worked on. I've heard that it is unlikely to be the source of problems.

Bill

TopDog95825

join:2003-10-16
Sacramento, CA

  I've been experiencing the same type of problems... Intermittent loss of connection. However, "loss of connection" may not exactly be the problem. It happened to me this morning while I was on AOL and was listening to streaming music. I lost my connection to AOL but the streaming music didn't stop. Might just be an anomaly, but not sure.

Any suggestions are very much appreciated!!!
--
Top Dog in Sac
Forums » US Cable Support » Comcast » Comcast HSICable modem lights blinking like crazy »
« Am I asking for trouble?  


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