Can't find what you're looking for?
Official
Accepted
Unanswered
Advanced Filters
Search Results (533)
My New Arris SURF(brick)board
Dear Comcast, I decided it would be nice to upgrade my cable modem. Firing up Google search I typed "comcast supported modems" That brought me to here which took me to here. Unfortunately, when I talked with support that's when the sad news came, the Arris SBG6782-AC "supported" SURFboard modem is a
Question
•
Domain Names/Static IP
Accepted Solution
Hi elchupicabra. Welcome to the Business Forum Community. I apologize for mis-information that you were given. For Small Business accounts, Comcast does not allow the configuration of fixed Static IP addresses onto non Comcast equipment. Currentl
Update: Static IP's with customer-owned modems/gateways
Good day, fellow victi.. uhh, 'users' of Comcast! I thought I'd post an update regarding the issue of not being permitted to use static IP's with a customer-owned modem/gateway. What I found out is, I think, likely to raise eyebrows (and, possibly blood pressure levels) other than mine. For those wh
Question
@Comcast_Ray I think part of the frustration is from this being at least the third firmware update that has broken IPv6 in a way that can't be worked around by the customer. And we as customers are just stuck every time this happens. If we had
Prefix Delegation Disabled
Is anyone else having issues with their delegated IPv6 prefix? Our CGA4332COM correctly shows our assigned /56 address but it is not handing out the /59 prefix to our router-firewall. This seems to have started this week so I suspect this is caused by a recent firmware update. Tier 1 support refused
Question
@tmittelstaedt wrote: I think you should PM comcast_tuska and ask him to address all of this here in this thread. Good idea: PM sent and copied here. Request for weekly or bi-monthly updates on IPV6 PD issues From: @und
IPV6 Prefix Delegation on Comcast-Provided Modems
Can we keep a running status in this thread of (Business service) Comcast-provided modem (by model) prefix delegation conformity? I have several client locations in Chicago and suburbs with Comcast Business service and IPV4 fixed addresses. Every client I support has a firewall/router behind a Comca
Question
Sales rep says that Dynamic IPv6 Static is available as of beginning of October
My sales rep said that IPv6 is available with dynamic IPv6 and static IPv4 as of 10/7/2014 on SMC D3G modems. I phoned tech support this evening, who told me that the modem has IPv6 on the network side but not on the customer side and that he didn't think that Comcast did IPv6 on the customer side a
Question
•
IPV6
I gave up long ago on Comcast supplied gear for v4 statics with v6, leave it in place and ignore it
Save yourself the pain ! Simple solution, a pfSense firewall, tunnel IPv6 (6in4) to Hurricane, use the many DNS resolver tricks to strip AAAAs from its (pF) local resolver (dnsmasq) to return only IPv4 A records for certain domains to avoid (Netflix et al) tunnel block issues and I am a happy camper
Question
•
IPV6
When we did the test with both modems, our network was connected to the SMC. The Cisco had nothing connected (save power and coax from Comcast). So, yes, it was clearly not our network that was triggering the reboot. I cannot speak to the packages th
Modem randomly reboots
Here is our setup: We have static ip addresses and the modem is in the bridged mode. We have only 3 devices on the network: 1. Computer A with a web server and a dns server running Windows 10 pro. 2. Computer B with a web server, dns secondary server, and an email server running Windows 10 pro. 3. A
Question
All of the gateways handle static IP routing in the same fashion, and as far as I've been able to tell it's as "clean" as I've needed it to be. I am running numerous firewall/VPN appliances behind both the SMCD3G and the Cisco DPC3939B. I have used:
recommended Comcast modem for business with separate firewall / VPN
Can someone please provide a recommendation of the recommended DOCSIS 3.0 modem for use with a Comcast business account with /28 static IP block, wishing to run a separate firewall and perhaps other network devices needing to route from a public IP address? The "gateway" devices do not appear to do
Question
It's not the point business users can, if they wish, use their own modem. It's that, if they do, Comcast will not provision static IP addresses. This restriction seems, to me, silly at best. If Comcast is truly worried about abuse, they need to find
CG3000DCR - Multiple questions
It has come to my attention that the SMC 8014 business gateway has been replaced by the Netgear CG3000DCR. With this in mind, I have several questions. (1) I've seen some (lightly) used CG3000DCR's come up on Ebay every so often. If I purchase one of these units to replace my current SMC box, and tu
Question
Madman I too am having the excat same issues. I too have done extensive testing, and when talking to Comcast only to be told that they have no SMC cable modems. I am posting my WinMTR report too: Host%SentRecvBestAvrgWrstLast10.1.10.13103210050167398
Issues with the Netgear CG3000DCR - surprised?
So, I was originally a Comcast home user and migrated to Comcast business. While I was a home customer, I had an Arris CM820A modem that worked without issue. Since being on Comcast business, I have had nothing but problems with the Netgear. Here are my issues: 1. Periodic packet loss 2. Sub-optimal
Question
Static routing to a router: how do I assign the router an ip address?
I have a netgear wireless router attached to my Comcast cable modem. LAN subnet is 192.168 If I understand the manual correctly, if add static routes to each of these modems, then computers connected wirelessly to the routers can then speak to the computer attached directly to the cable modem, i.e.,
Question
•
Domain Names/Static IP
I am now being charged for cable equipment that I have NEVER HAD
I am very frustrated in the bait and switch of Comcast. When setting up comcast initally for our small non profit, we only needed internet service. The pricing for internet/cable was half the price of the internet alone due to "promotional pricing". Of course we took the combined package to save $.
Question
•
Customer Service
Keep calling Comcast. I find local techs often don't respond unless they get a couple notices. But... Low upstream power is good. Low downstream power is bad. Upstream power is the power used by your modem to send data. The cable will increase the up
Low Upstream power after local outage
I am getting low upstream power on my modem connection since the beginning of the week when there was an outage in my area. I keep getting between 10 to 20 percent packet loss and it is impacting my business. I have contacted technical support and was told I would get a call back from a local tech.
Question
Accepted Solution
Thank you for all the replies! I'll try my best to reply to all above. The original tech whom was here left me with the wrong account #, it was off by 1 number, so I assume when he called in my MAC on this modem it was to that account instead. When I
No Connection
After talking back and forth between comcast support and D Link support, D Link has offered to exchange my modem even though I know for a fact the modem is working fine, sending packets but not getting a response on your end. They suggested to have you re-register the MAC address on the modem to fix
Question
Connectivity issue over Ethernet Dedicated Line:
Thank you in advance for any assistance, We have been having trouble with our line, it went down for an unknown reason (both directions) over a week ago. To my knowledge nothing has changed, especially as far as the LAN. On each side of the line there are DCP3008 Cisco modems, configured as bridges
Question
•
Connectivity
I am currently suffering the worst Upstream issues I have ever encountered. Upload speeds that go from 20Mbps to 0.08Mbps when under load on a Business Class service at a premium for over 10months, 5 modems, 10 technicians, 2 field service calls a
Slow upload on static IPs
I've been trying to pin down the cause of some machines having slow internet upload speed and I seem to have tracked it down to static IPs. Machines that get NAT addresses straight from the modem have good upload speed but everything that is assigned a static IP, either routers or individual machine
Question
I am currently suffering the worst Upstream issues I have ever encountered. Upload speeds that go from 20Mbps to 0.08Mbps when under load on a Business Class service at a premium for over 10months, 5 modems, 10 technicians, 2 field service calls a
Really slow upload speeds
I currently had the business deluxe connection (150/20) and the uploads speeds never reach more than 2Mbps. Before I signed up for the contract, I was promised the numbers would be the lower limit for the actual speed I'd get during service. This has been consistent. At first I just chalked it off t
Question
Cisco DPC3941B - no longer supported?
OK, hoping someone from Comcast will chime in. Brand new customer (as in less-than-one-month), with a "new" Cisco Business Wireless Gateway deployed by the installer. It's been giving me grief at a hardware level, unable to assign /view DHCP, multiple T3 Gateway timeouts, etc. so I went searching fo
Question
•
Equipment
unfortunately, there's not much you can do. Static IPs cannot be provisioned to customer owned modems; you must lease a Comcast gateway for that. As far as I've known, the gateways should do no modifying of traffic to/from static IP assigned devices.
train_wreck
commented
11 years ago
to the conversation:
0
0
True Bridge Mode on DPC3939B for comcast business
I have a newly installed 150MBit comcast business service with 5 static IPs which came with a DPC3939B router. We are having problems with the device changing TCP options on our traffic and need to get the device into true bridge mode. I contact support and was told that the DPC3939B did not have a
Question