Comcast seems to not care about the bridged network as much. Basically, data coming into the network is sent out to all devices on the network. This session will cover MPLS Solution Overview on Catalyst 9000 platforms. The only solution we have seen is to either replace the router and gamble on a new Comcast router that maybe has fewer issues or, better yet, to place the router in 'bridge mode' and add your own router. Is it true that I need a router inline with the cable modem to use the device in bridge mode? So, my experience is that putting a Comcast Business Internet DPC3941B in bridge mode DOES NOT disable any of the wifi. And you have full Internet connectivity without another router being connected ? The DPC3941T is a wireless modem; of course you can get a Cisco router and connect it to the modem if you want to. I … 1. We have Comcast Business service with DPC3941B cable modem hardware. Reply. I called Comcast to have them remotely enable the bridge, and this is where I got lucky. Click HERE to get help with a password reset! Bridge Mode you recieve a complete different subnet address than in non bridge mode. The ideal network involves your Internet Service Provider (ISP) connecting onsite to a standalone modem that connects to a router, preferably a router recommended by Nextiva. When I enable the bridge mode, the cable modem disconnects, and internet is lost, as well as connection to the unit, so that I cannot access it and change the bridge settings, for example. Start... DPC3941T is a wireless modem; of course you can get a Cisco router and connect it to the modem if you want to. However, Comcast gave him a Cisco DPC3941B gateway which is fine with the exception of Port Forwarding. Sign up to try out various use cases with the Cisco SD-WAN Cloud O... Start Have a look at the CVR100W Wireless-N VPN Router, or the RV215W/RV130W/RV340W routers. I saw a video saying that if I enable bridge mode, I need to have a router inline. This SIP packet, intended for a specific destination, will no longer know where to go, causing one-way audio, dropped calls, deregistrations, and failed transfers among others. Cisco SD-Access Scale Hence all addresses issued by router 2. It is important to setup a static ip addressin the device that you are forwarding a port to. I will research those routers and get one. I want to use my Hub One as primary router and connect old Technicolor as secondary router, wirelessly. Hello - I've had a working gateway-gateway VPN (IPsec) working for several years. I have read lots of articles and threads about extending your wifi range using an old router and confusion rules, most because people are going into detail about other routers. Cisco DNA Center Virtual Network (VN) Scale After setting up a static ip address on your devices you need to login to your r… Login with the modem Cisco DPC3941B with the following default ip address (10.1.10.1), username and password We are very excited with the number of amazing independent technology bloggers, vloggers and podcasters who chose to participate in the 2020 IT Blog Awards, hosted by Cisco. I see most have wireless ability, so I presume I can leave the DPC3941T in bridge mode and use wireless, when desired, from the router. I finally received the router. Submit a ticket instead. Technical: It was so simple... Left column, select 'Connections" and then select 'Wifi', and then edit both of my private WiFi networks by 'Disable' the Wireless Network  All fixed. Design I've read that (and Comcast has said that) we need to keep the DPC3941B cable modem hardware and NOT put it in bridge mode in order to retain our static IP. I get it 50/50 on the networks I set these modems to bridge mode into. DPC3941 by Cisco information and hardware knowledge base. Cisco DPC3825 Upgrade -Basic Setup and Bridge Mode (Cable Modem Mode) I had a bit of confusion with the initial setup, and couldn't find a definitive source for a solution so thought I'ld post one. When I enable the bridge mode, the cable modem disconnects, and internet is lost, as well as connection to the unit, so that I cannot access it and change the bridge settings, for example. I set it to bridge mode after the installer did all his testing and left and the two wifi networks were still enabled. May still be issues with SIP NAT ALG (enabled by default). Double NAT: When routing SIP Packets, the packet will come into the modem, and be directed to a private IP address (the router). The issue is that you can't setup static addresses in bypass mode the same way on the brain damaged Linksys/Cisco device as on the somewhat less brain damaged Verizon device. She enabled the bridge and showed me how to turn off the WiFi without having to do anything to the bridge. There are five main areas that you should be concerned with regarding your network. This can cause failed transfers, dead air upon call retrieval, among other issues. This equipment, by itself, is not recommended for use with VoIP service. My old Verizon config on the PA firewall was layer3 on both sides- "untrust" interface DHCP and "trust" interface static IP. Enter the following credentials to log in: Reboot the router and any devices connected to the router. is there a button or switch on them to make it fast and easy to do? This modem will not give IP addresses to devices which are not running Windows (such as Ipads, Iphones, Tablets, etc); the modem recognizes the devices but will not give them IP addresses so … Or follow our Static IP Addressguides to setup a static IP address. Shop backup batteries for telephone modems including Arris back up batteries and batteries for Cisco DPC3941t, DPC3939, DPC3212 + Comcast phone modems & more. Grrr. Common issues include one-way audio, dropped calls, failed transfers and deregistrations, among others. We have a Cisco modem/router model DPC3941B provided to us by Comcast. Firewall Access Rules: The simplest way to ensure that traffic is not being blocked is to allow all traffic to and from 208.73.144.0/21 and 208.89.108.0/22. Try enabling NAT. The NAT feature may be disabled by default and will need to be enabled, and DNS servers need to be configured to a dependable set of DNS servers (Nextiva recommends Google DNS). So here's my dilemma, I work in a support role at a hosted voip(sip) provider and as of late I've had a ridiculous amount of customers reporting a whole slew of issues related to double NAT. Interested in testing out the latest Cisco Cloud OnRamp solutions? Do these routers allow you to turn off the wireless component? In bridged mode, the ACE bridges traffic between two VLANs in the same IP subnet. 1.1. → Download Network Utilitiestoday! Cisco DNA Center System Scale If you have more devices on your network than ports on your router, you can connect a switch to your router to expand the number of ports. Learn 2. I'm looking for a complete manual on the DPC3941T router.. Multicasting: When a call comes into a Call Group and simultaneously rings all phones, the Internet traffic of the internal network spikes. Our team is ready to answer any questions you may have. VPN University says. Without multicasting enabled, you can have what’s called “port collisions”. TIA. ASK YOUR QUESTION in the "CLI Analyzer AMA", DPC3941T disconnects when bridge mode is enabled.   Since all phones are likely using port 5062, the data spike causes packets to be dropped. I prefer wireless usage. 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