Hi everyone, I'm stuck. I just recently bought a new modem. It's a TP-LINK TD-W8951ND. I want to use this modem as well as a voip box. Previously I had a Thompson 516, a wireless router, and the voip box. I can connect to the internet just fine but the phone service doesn't work. Any ideas?
Why did you switch? A standalone modem with a router almost always works better than an all-in-one...but if you want to use it, have you tried using DMZ with the VoIP ATA? Or possibly Port Forwarding may work too.
I have a question... If my line attenuation is low, would that result in my modem power light to flash red? I have a Thomson 516 and at random times I would lose sync and it would never reconnect. The power light will keep flashing red and I have to power off to get it to sync. My line attenuation for my upload is around 6db. Or has my modem really lived it's final days?
6db attenuation is very low (that's a good thing) but the real factor is your SNR (Signal/Noise Ratio). If *that* is 6db then your line is quite bad which is either a result of a high attenuation (low signal) or high noise (faulty/missing filter, or some other cause of noise on the line).
Post a screenshot of DMT (or similar) and we'll have a clearer idea of the situation.
It might be the SNR. I can check tomorrow but would that cause the modem to have the power light constantly flash red and never connect to the internet without me having to turn off the power and on again? It happened again about 5 minutes ago. This problem started about 3 weeks ago. My line stats for the most part have always been good though. Could weather play a role?
I don't remember the light codes on the modem. Fortunately my line has been rock solid for years now. To know for sure, pull the line stats when it's struggling and again after rebooting.
Weather can definitely play a role. If your line is damaged and exposed to the elements then you could see much higher noise when it's raining, for example. If you have voice on the same line, check for static during the times that your modem is struggling.
A few things that can cause noise on the line: Damaged cable (blame the squirrels) Strong radio signals Missing phone filter Faulty phone filter (I've had one that worked originally then died and created problems) Doorbell/intercom connected through the phone wiring Probably more
Right now I'm using my old setup of Thompson modem and wireless router. I never had any real disconnection problems until about three weeks ago. I've stored using the TP Link since I couldn't use the phone but the internet worked.
Grr it went down again...
Yes my VoIP box has DHCP enabled.
On my Thompson modem the red light always flashes red when it goes down the the Ethernet flashes green. The DSL and internet lights do not go on at all.
Those stats look quite good that even a marginal modem should work fine. Pull and post the stats again the next time your connection is on the fritz. That should show us if you're getting intermittent noise on the line or not. We'll also be able to see the error count.
Because originally you were saying that your VoIP wasn't working but did when you had a simple modem + your existing router. In order to mimic the same setup you would want to "dumb down" your replacement modem to not do any of the routing but act as a simple modem.
Alternatively you could retire your existing router, though often times routers built into modems are sub-par. What you certainly don't want is to chain 2 routers (ie: have the router in the modem then your original router and then your devices). This will result in double NAT which will cause havoc with services like VoIP. So decide which router you want to use and take the other one out of the picture.