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*Proper* Static IP Config

I am asking this here since Comcast Reps will not advise on device configuration for Static IPs., so I am hoping someone can shed some light on this. I have a BWG modem (being replaced soon) and a block of 5 Static IPs, x.x.x.25 – x.x.x.29, with a "gateway IP" of x.x.x.30. Now, if I manually c

Question

 • Domain Names/Static IP

34

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Do I have static IPv6 addresses?

For the first time, I logged into my Comcast Business account, went to the "Manage Services", "Internet", page, and noticed a link to "View Static IP", so I clicked on it.It brings up a page that not only shows the static IPv4 addresses I know very well, but also "Static IPv6 Information", which is

Question

 • IPV6

16.6K

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/59 prefix delegation block changed...

I have a /56 static on Comcast Business. Recently I had a cable modem issue (as determiend by comcast) and the cable modem was replaced.  Everything is working, but I received a different /59  (still inside my /56) so I had to renumber several vlans!  How do I keep this from changing

Question

 • IPV6

670

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Accepted Solution

Closed

PTR request

I need a PTR for our business website email

Question

 • Customer Service

1.4K

4

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PTR Request

Need help with a PTR request

Question

 • Domain Names/Static IP

1.1K

3

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Accepted Solution

Trouble with address when switching from Business to Residential

I’ve run into a blocker switching from Business to Residential. After calling business support, all I need to do is activate residential service through Xfinity, then sign the voluntary disconnect form they sent me to turn off business service. My address is blocked for use on Xfinity. It says “thi

Question

 • Customer Service

27

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Accepted Solution

Comcast’s name servers

Business Class customers have contacted us asking, “What are Comcast’s name servers?  I need to know so I can use my own domain for Comcast services.”

Question

 • Domain Names/Static IP

11.4K

1

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Disconnecting service.

When Comcast credited my payment to the wrong account last May, my subsequent payments were always one month late, but still early enough not to incur a late fee. As such, I was not aware of the misplaced payment until I was charged with a late payment fee several months later. That led me to resear

Question

 • Connectivity

4.2K

5

Accepted Solution

Received replacement modem, /very/ displeased with receiving a discontinued refurbished device.

In a previous post, https://forums.businesshelp.comcast.com/conversations/equipment/time-to-get-a-replacement-for-the-old-smcd3gccr/633cf41548c60d55e60592dc , I asked about replacing my old SMCD3G as it was starting to randomly lock up, requiring a power cycle.Getting a replacement was painless, cre

Question

 • Equipment

41

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0

Accepted Solution

Time to get a replacement for the old SMCD3G-CCR?

I have a SMC SMCD3G-CCR with five static IP's, routing/firewalling is handled by an external device (the SMC doesn't have the memory/grunt to deal with my stack).Recently, the SMC has started randomly 'hanging'. My firewall stops being able to ping the public facing IP assigned to the modem, and tr

Question

 • Equipment

52

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0

Accepted Solution

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

 • Domain Names/Static IP

728

10

Accepted Solution

password reset

I am unable to sign into my comcast gateway with the default username and password. Could I get the password reset please? Thanks!

Question

 • Equipment

1.9K

3

Accepted Solution

Comcast Business Contract Renewal - Customer-Owned Equipment

In 2020 I contracted with Comcast for a package called Business Internet 500, and I have been able to use my own modem (a Netgear CM1000) for Internet service (no other services). As the contract was nearing expiration, I called and spoke with a sales representative. He told me that Comcast Business

Question

 • Equipment

264

4

Accepted Solution

Want Corporates Email To File A Formal Complaint About Business Class Service

I am beyond livid at this point. The constant run around the constant it's not us it's you or never following up is getting really old.  Last visit was several months ago for another outage and they couldn't find the node we are on and was supposed to get back to us.  NO WORD & that w

Question

 • Customer Service

103

4

Accepted Solution

BLF Moved?

I used to go to Advanced Settings under Business Voice User to change BLF settings, but that option no longer appears there, and I can't find it. Is this a temporary portal issue, or has its location changed?

Question

 • Business VoiceEdge ®

59

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Accepted Solution

PTR records or ideally forwarding please :)

I host my own name servers and have a new /28 block and /56 block ipv4/6 from comcast and I would like to be able to manage my own PTR records (e.g.: [rfc2317](https://www.rfc-editor.org/rfc/rfc2317)) for my static ipv4 and ipv6 blocks.  If not, here is the list of ip addresses and their names

Question

 • Domain Names/Static IP

43

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Accepted Solution

Polycom CCX 410 extension not showing and cannot call out

First the date went ahead an hour. Then when I rebooted my phone, my extension went away. When I call out, I get a fast busy. When I call in, it goes right to voicemail.

Question

 • Business VoiceEdge ®

42

2

0

Accepted Solution

My Account Portal Is Showing a Pending Order After Installation

I have recently had internent, tv and phone installed, but in my portal, I just see "Pending order" and some information on an installation checklist, order summary and how to understand my bill.  I would like to manage my account including change my Wireless Network Name and Password as well as set

Question

 • Customer Service

4.6K

5

0

Accepted Solution

CANNOT ACCESS 10.1.10.1 BUSINESS MODEM

Needing to access the Comcast Modem 10.1.10.1 in order to set new ip addresses in firewall acceptance. I cannot access 10.1.10.1 i get the spin on Chrome and ERR_CONNECTION_RESET thats all nothing. I tried using WIFI, the router that is plugged into the modem and hardwire directly into the modem, no

Question

 • Connectivity

8.1K

5

0

Accepted Solution

Official Solution

Closed

CBR-T Manual

I recently upgraded my service and I have this new CBR-T wireless router.  When first installed I did not have time to reset all my rules from my old router so I called support to get a manual on the modem.  They asked what I needed and they switched the modem to passthrough mode. I now want to use

Question

 • Equipment

14.7K

17