Faulty modem?

[TheCAD]

Recently my cable internet has been down ~50% of every day. The modem is constantly cutting in and out.

I wasn't 100% sure if it was the modem, some sort of networking issue(their network isn't the most reliable), or some problem on the line itself.

Half the time I try to login to the modem's page I can't even do that.

It seems like the modem has just died to me, but I am using a router. Pings get returned from the router, but the modem has huge packet loss when these problems occur.

What issues would cause these things:

- Modem lights constantly flickering on and off, constant resetting,etc.
- Inability to login to the modem's status page.

Also, it seems odd to me but these problems are most common at right around 3pm every day. Which is why I initially wasn't convinced it was an issue with the modem.

 

[mwroobel]

Recently my cable internet has been down ~50% of every day. The modem is constantly cutting in and out.

I wasn't 100% sure if it was the modem, some sort of networking issue(their network isn't the most reliable), or some problem on the line itself.

Half the time I try to login to the modem's page I can't even do that.

It seems like the modem has just died to me, but I am using a router. Pings get returned from the router, but the modem has huge packet loss when these problems occur.

What issues would cause these things:

- Modem lights constantly flickering on and off, constant resetting,etc.
- Inability to login to the modem's status page.

Also, it seems odd to me but these problems are most common at right around 3pm every day. Which is why I initially wasn't convinced it was an issue with the modem.

Do you own the modem or is it a rental/included in package? If you don't own it switch it out. If the modem is consistantly rebooting, you may need to replace it. Which modem do you have right now?

 

[halo000008]

I had similar problems with a sb4100. Turns out the wiring in my house was rotted. After it was replaced I didn't have anymore problems. Fyi the house was built in the 40's.

 

[TheCAD]

I had similar problems with a sb4100. Turns out the wiring in my house was rotted. After it was replaced I didn't have anymore problems. Fyi the house was built in the 40's.

I thought having a problem with the wiring in the house or elsewhere might be the problem at first, but is that even a possibility when every time this happens I can't even log in to the modem to check status/signals.

The times this has happened and I could actually see the signals the upstream power level was going completely nuts. It would jump back and forth anywhere between 0 and 55(where it normally runs).

 

[Ehren8879]

I thought having a problem with the wiring in the house or elsewhere might be the problem at first, but is that even a possibility when every time this happens I can't even log in to the modem to check status/signals.

The times this has happened and I could actually see the signals the upstream power level was going completely nuts. It would jump back and forth anywhere between 0 and 55(where it normally runs).

I'm not saying it isn't the modem because that's entirely possible. However if you're saying that your modem normally has a transmit power of 55 dBmV then you most likely have a wiring issue. Could be anywhere from the back of the modem to the ped or pole. ~55 is the max the modem can operate at to talk back to its CMTS, so it has no headroom to adjust if need be. It may not be unusual that you cannot log into your modem while it's acting up.

If you havent called your ISP yet do that next.

 

[TheCAD]

So I tried every setup imaginable a few days ago(unhooked router, took the splitter out, tried multiple computers,etc) and nothing seemed to fix the problem.

It was acting up yesterday again. I plugged my computer directly into the modem, reset it, and instantly it was up and running. Its now been running for 24 hours straight with no problems with hasn't happened in almost a week of running it with the router.

My brother had a similar experience last week when he tried the same thing.

Seems pretty clear to me the router is at least part of the problem.
Its a netgear WGR614v10.

Firmware is probably out of date. Will that fix it?
Also, not really sure how to save the firmware locally and then update it. Usually you login and the router does all that for you. But the connection is obviously unstable with the router.