Do you have a CGN3ACSMR as seen on the product sticker at the back of the modem? Can you let me know which you have, either way. The other choices are the CGN3 and CGN3ACR.
If you have a CGN3ACSMR, can you log into the modem and check the Firmware Version that is currently loaded. It will be displayed on the first page that comes up when you log into the modem. If you have the CGN3ACSMR with Firmware Version 126.96.36.199 you will definitely have problems. There are two issues, latency to and thru the modem, which is common to all CGN3 series modems. The other issue affects gaming applications, VOIP devices, VPNs and any other application that is latency intolerant. That problem is specific to the CGN3ACSMR. So, if you do have that modem, with its original firmware, its no surprise. The network wide distribution of the firmware that resolves those issues was completed last week, so at this point, anyone who now receives one of these at a Rogers Store, or via Tech install will have to be patient until Version 188.8.131.52 is installed, usually within 48 hours. Wish I had better news on the timing, but its definitely better than waiting weeks for the firmware, as many have done. Any issues that you are having due to the current firmware should be resolved after the version loads and the modem roboots.
@Tymmy I would suggest setting up a static IP address for the phone by using a DHCP reservation. This is done in the BASIC... LAN page of the modem user controls. Once that is set up, set up port forwarding for that IP address which is done in BASIC..... PORT FORWARDING. Here are the ports from the Vonage site:
Ports used by Vonage Adapters
The following ports are used by Vonage and may need to be forwarded to your Vonage Adapter.
SIP: Port 5061 UDP (Used to send and receive SIP information)
RTP: Ports 10000-20000 UDP. (Used to send and receive RTP traffic) When a call is made, random ports between 10000 and 20000 are used to carry the conversation. If any of these ports are blocked, you may experience one way or no audio.
Just as an update, after Rogers had disabled the SIP ALG this how now started working. It has been over a week and the phone has not lost connection.
Thank you for updating the Community, it definitely helps other members with VOIP issues on CGN3 modem. Your feedback is greatly appreciated.
Thanks for your contribution and for your help in keeping the community a pleasant place to be.
Rogers updated my router but refuses to assist me (unless i want to pay their techxperts) in settings the new options to work with my voip adapter.
This is what I sent hitron so if anyone could help me with exact specifics it would be greatly appreciated. I searched the firums and found similar issues but could not trace the messages to find the resolution.
"I just got your new Hitron CGN3, P/N 1510610002N0 last week to use with my hign speed cable internet service but upon connecting it to my computer and to my VOIP adapter (Grandstream HT502) when trying to place outgoing calls my call drops after almost exactly 30 seconds and goes to a fast busy signal.
Thanks in advance!