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dropping cable connection :(

H

HigherGround

Golden Member
i got my cable about 2 weeks ago and since then i had nothing, but problems....first i couldn't establish a strong enough signal to get anything going and it took my cable co. over a week to fix ( at least partianlly ) the problem, but I still get dropped on daily basis. The symptoms looks as follows ... just before ( 2-10 min ) before the modem looses the signal I can see a progressive slowdown, manifested by increasing number of dropped packets, of my connection, which eventually goes dead ... it stays that way for 1min - 8hrs and comes back by itself. I called cable co. and had 2 techs come over, but the timing of those visits was unfortunate, because the modem was working at the time and they just measured the signal and left :| saying that everything looks fine. At this rate it will take forever to troubleshoot and fix the problem, so I'm asking other cable users for help with diagnosis ( has anyone experienced anything like it? )?

BTW ... cable company is optimum online in NY.
 
You could try and ask them to install a signal amplifier. I had a whole bunch of problems before, and some tech decide to install the signal amplifier and now I haven't have a single problem.
 
I had the same problem here, although the outages were not as long as you are seeing.

I installed cable modems for a while, and the test equipment that is really needed to find difficult problems like yours are very expensive.

Things to check-

The cable connections need to be perfect! Signal ingress leakage is just as bad as the incoming signal level. This includes the other cables in the house, not just directly to your modem.

Unused cable connections should be capped! You CAN get these caps at Radio Shack.

Check with the neighbors. If they are having ANY trouble at all, include this fact on the trouble report AND to the tech when he is there.

If they come out again and they find that all is well, insist on a new modem. It just takes a little extra paperwork for them to change it.

DO NOT run out and buy an amplifier yourself. It takes a special kind of bi-directional amp to work with the cable modems. Radio Shack probably doesn't have one. Besides, they input signal at the modem must be within a certain range.

Best of luck to you. Cable companies and the techs usually aren't the sharpest, and the best of 'em have a tough time with an intermittant problem.

Oh, the cause for my trouble? The neighbor's weed eater!

viz
 
I had a few problems with mine. The modem was replaced 3 times. They replaced the filter twice. Reran the cable from the pole to our house once. Fixed the fitting on the pole (it kept coming loose) about four times. It's been solid now for many months.
 
Sorry I don't have any good input that can help your problem. But I hope someone have a answer to me also with my cable problems.

for a long time now my ping have had high spikes (ping from 50 to 4000 at first node), and have had some huge packett loss and timeouts. The ping seems normall now. pinging the first node with a range from 40-200. But now I have timeouts like 12-20 times in a hour. I have checked the data stream when having timeouts. The strange ting is that data sendt to me keeps the byte rates as it should do. But the download steam is changing every sec. like 1 sec I have 0 bites in download. 2. sec i have 23bites in download. it should be atleast 4000 bites in download.

Anyone have a suggestion to what is wrong??
 
Ask tech support to very carefully verify your modem provisioning, improper provisioning is a big troublemaker. If everything looks right then demand a new modem, new line straight to the modem, etc. (check out the other @Home posts for some other ideas, Don't feel like totally repeating myself that many times 😎 )

I know gamers will disagree, but ping times are pretty much irrelevant to @Home. Now, if your gateway (that's the first hop) is getting consistantly over 100ms then call in and have it documented, they may eventually take a look. Mostly they only count loss of packets, and it needs to exceed about 6% over 100 packets of small size.

Other than that, listen to Viztech, he's got it right.
Feel free to email me other questions
theprinceofwands@home.com

(btw, I'm a tier 2 tech for @Home so I've got the inside info)
 
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