SG Broadband Community

Yes I get the exact same problem for over a year now. Levels are perfect, one thing you can't see with the motorola modem that I was able to catch with my new modem. Randomly the upstream signal will spike extremely high to 61+ (55dB is supposed to be the threshold, I think the modem I recently got ...

Okay well i've found a new solution maybe to my problem

A tech had gone to my friend's house yesterday, he was having a pretty similar problem, although his was caused by a bad splitter hidden on the line from the old days.

I explained to him my problem, it appears I was correct about the upstream ...

Well that Duplex Mismatch stuff wasn't the problem, it's still doing it, but now it appears a friend of mine that lives up the street (thought across a main street so idk if he's ont he same amp) is having similar problems, he has a Linksys modem


1970-01-01 00:13:35 critical SYNC Timing ...

You should make sure that no one has added any splitters to your cable in your house, and make sure no one has added any devices at the ends of your cable in your household, these changes can cause some intermittent problems. Also tighten up any connections in the Rg6 or whatever cable is used ...

mistake, I have an SB5100

Alarm: Duplex mismatch condition exists: Host set to Full and Switch set to Half duplex

That is coming up with the test. I can't figure out how to change the settings.
Although the modem i'm using once again is Sb5101 and router is WRT54G (v4)

well i was told by the tech that it's unable to sync with the upstream or whatever.

I've managed to get the modem to reconnect sometimes by swapping the splitter in and out (sounds weird for it to fix it sometimes by connecting it)

Okay so that idea didn't really work. I was reading around and found http://www.speedguide.net/read_articles.php?id=124 on the site, that seems to be about the same problem.

The thing is one tech that came actually mentioned that sorta thing bu said since the problem has such a small margin, if he ...

From what i've read my upstream signal was too strong, on the borderline of the range and i'm thinking that the intermittent problems were from it going above that signal range. I've connected an extra splitter between the line and the modem to see if that will keep it steady.

But what do I know ...

Alright so. I've been having troubles with my connection, i've had 3 of the Adelphia/Comcast techs come to my house and say it's fine so idk what the problem is.

A few times a day i'll get disconnected and my SB5101 modem will have a solid top 2 lights and a flashing 3rd for anywhere from 5min-1hr ...