Overclock.net › Forums › Software, Programming and Coding › Networking & Security › Internet disconnects at exactly 11:40pm each night
New Posts  All Forums:Forum Nav:

Internet disconnects at exactly 11:40pm each night - Page 3

post #21 of 28
Thread Starter 
I missed my window of opportunity last night due to ArmA 2 Wasteland base ops going insane...tonight, I will not let that happen...thumb.gif
post #22 of 28
Thread Starter 
So, yet again, it happened again tonight. Apparently it looses connection for only seconds, and then resumes.

proof.gif


I saw no change in DHCP settings or IP settings after the incident, but I am not sure if that means setting my main rig to Static IP would fix anything. I am more concerned now that something is up with my computer's time or a task that I cannot see. Then again, I can't put the possibility of an ISP related problem. This is an odd one...
post #23 of 28
Quote:
Originally Posted by SOCOM_HERO View Post

So, yet again, it happened again tonight. Apparently it looses connection for only seconds, and then resumes.

proof.gif


I saw no change in DHCP settings or IP settings after the incident, but I am not sure if that means setting my main rig to Static IP would fix anything. I am more concerned now that something is up with my computer's time or a task that I cannot see. Then again, I can't put the possibility of an ISP related problem. This is an odd one...

Giving yourself a static IP on your local LAN will do nothing if you're ISP is losing packets or having a DHCP issue of their own. If you are concerned with it being a LAN problem rather than a WAN problem, tomorrow at the same time, ping an address on your local LAN the same way you did google tonight to see if you lose a packet. You may want to start by pinging a local PC, and then the next day try pinging the default gateway address if you dont lose packets pinging other devices on your LAN.
post #24 of 28
Well ISP related would last longer than a few seconds. Unless there is a problem with the cmts that feeds you. It is traceable if you could get through to a network engineer. But that's next to impossible without a corporate escalation.

What do your modem logs show during this time? Not router but actual modem.

You could always have a in home tech come out and when he gets there don't let him sidestep you with his inevitable nonsense but have him call his headend and ask either the net tech headend tech or net engineer to drill into the cmts your Mac is on. Cmts keep very verbose logs of modem events.
Edited by majin662 - 6/6/13 at 9:02pm
post #25 of 28
Thread Starter 
Modem logs show this: no idea what this means, I am by no means a network admin...



Power/misc signal info:


Edited by SOCOM_HERO - 6/6/13 at 9:48pm
post #26 of 28
http://www.cablelabs.com/cablemodem/downloads/specs/CM-SP-BPI+_I12-050812.pdf

It won't help your problem - but section 5 of the PDF (page 81 i think) explains the SA MAP thing. A quick google showed folk with the same problem, and similar messages - it may be related, it may not. My gut feeling is it's something to do with your ISP, and it may be worth giving them a call and have them check your modem - there seems to be security things they can set, which may need checked.
post #27 of 28
Thread Starter 
Did more digging on that lead provided by latelesley and majin662. Came up with this...http://forums.comcast.com/t5/Basic-Internet-Connectivity-And/Frequent-short-disconnects-on-a-daily-basis/td-p/1518833

Based on the logs, it happens more than once a day... and the logs are behind by one hour according to daylight savings time, so I have accounted for that as I am on EST. I guess the only thing to do is to contact TWC and get a tech out here or get a new modem...I know the DOCSIS 3 is better than this, but we also have a landline through VOIP, and that I am not sure that Motorola makes for our area. I'd love to get something capable of faster speeds anyhow and buying rather than renting a modem would be nice, but afaik you cannot do that with a standard moto SB6141 or SB6120, instead I will likely have to rent the SBV6220 from TWC. Even then, this issue might not get resolved without having a tech out here.

Guess I will see what happens when I call them tomorrow.
post #28 of 28
Looking at your logs. Your signal levels are good. What does stand out though is the amount of correctable codewords and uncorrectable codewords. Those are indicative of a downstream signal impairment. Think of codewords like this.....

your data is being sent to your house down a pipe....imagine the center of the pipe as a bunch of tightly packed digital data....an unerrored codeword is one that stays in the center tightly packed with everyone else...a correctable one is one that starts to veer off course but could be saved....and uncorrectable codeword is one thats just gone...

You have over 29k uncorrectable ones....somewhere in your downstream signal , there is an impairment....


ata ny rate when the tech arrives...let him do his job but at the same time don't let him sweep your propblem under the rug with some mumbo jumbo he's going to spew to try and get you on board. ask him politely but firmly to call his headend and have them at least pull up your mac address within the CMTS it is assigned to and drill into it to make sure there's not a larger issue going on.


GL mang
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Networking & Security
Overclock.net › Forums › Software, Programming and Coding › Networking & Security › Internet disconnects at exactly 11:40pm each night