said by officederamo:
The splitter is just where the electrician did the wiring so that we can access both WAN and LAN's. Splitter is probably the wrong term but I don't the technical term.
The IP's after about 7 hours have reverted to not responding. The last hop before the static IP is 188.8.131.52.
I am also an Optimum SIP truck customer and my network consultant is asking that dept for help too. We'll see what happens.
Ugh oh. The SIP product is deployed from a separate cable modem and SIP proxy box (commonly referred to as a Back-to-back user agent). How is your IP-PBX connected to that B2B box?
Under NO circumstances should you use a SHARED ethernet segment (= switch) between the LAN side of the DPQ3925 static-IP router and the LAN side of the IP-PBX/B2B-box, or even the LAN side behind your NAT router: You MUST keep that traffic truly separate+private - the risk of conflicting IP spaces and host IPs (between what your NAT'd network uses and what the IP-PBX and possibly your VOIP phones use) is just too great: This is beyond your skill level.
I am highly suspicious about your statements that "whatsmyip" (do you mean »www.whatsmyip.org/
?) is showing you different IP addresses from the same machine at different times - at ALL times should it show you the same IP out of your pool of 5 statics. If it doesn't, your machines are clearly changing networks (more than one DHCP server in the same ethernet L2 space!), and you have some shared ethernet (layer-2!) connecting something improperly. However: I can't think of a scenario that would make whatsmyip to display anything but a publicly routed IP, ever - it should never ever be capable of displaying private RFC1918 addresses (192.168.x.x among others).