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Relinquish leased /28 subnet?

After 41 years, we've decided to roll up our LLC. The LLC has been dissolved and we've ceased operations. Accordingly, I no longer need our leased /28 subnet. We're under contract through June 2021; I'd like to know if I can relinquish the subnet and the required Comcast-managed modem, thereby avoid

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4.1K

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Need PTR record changed

We changed mail servers so I need the ip address of our ptr record changed.thanks

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2.4K

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Caller ID displaying incorrectly

My company changed our name a few years ago and the caller ID display shows our old name still.

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6.7K

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Bridge Mode inbound/ingress traffic issues

Hi, I recently received a speed upgrade to my service which came with a new Comcast supplied gateway. Previously I had been running on a modem I supplied. I was happy to see I could enable bridge mode for my service (I do NOT have static IP service). I set the gateway to bridge mode, plugged my lapt

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8.7K

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prefix delegation size with SB8200?

I recently gave up my static IP addresses and figured I'd switch out my comcast provided modem with one I own. I purchased an Arris SB8200. Once provisioned, my CPE requested a prefix delegation (configuration unchanged). I received the same v4 address but only a single /64 for v6, which is insuffic

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4K

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Disable SecurityEdge / Upgraded service and transparent dns proxying started after modem swap

Hello, my service was updgraded, and a new modem was installed:     PN: CGA4131COM Since the modem install and updgrade to new service, our DNS is not resolving to those configured manually. No changes were made to any devices on the network other than the service upgrade/new modem. It appears there

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4.8K

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Looking for an update on my order for service

I placed an order for service on August 14th with Nasir Jones. He stated he should no something by the 18th or 19th of August. Since the date of my order, I have received no response from Nasir Jones. I have sent an email to him on the 21st and the 25th and he hasn't responded to either. This seems

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4K

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Size of DHCP-PD change

For a while now, IPv6 has been "buggy" for my Comcast connection. For example, IPv6 websites like Facebook and LinkedIn loaded slowly, if at all. Today, I was finally able to do some debugging. And what I found was that somehow the prefix that my firewall received from the cable modem changed. I use

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3.8K

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Subnetting /48 to one /64

I have simple questions about IPv6 subnetting.We have EDI and are given /48 IPv6 addresses but need only one subnet. Currently we assign /48 addresses to all of our devices but I thought I might need to subnet it and assign /64 addresses instead because IPv6's host subnet is /64. My questions are:Is

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3.2K

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Frequency of DHCPv6-PD change?

Since the replacement of my cable modem on my business service has been an utter trash fire with regard to service being "the same before and after" the replacement, as noted here, I have been relegated to using bridge mode and forgone my static IPv4 (and static IPv6) to actually get functional IPv6

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3.4K

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Cradlepoint not getting the signal

Hi,  my cradlepoint router is online through the cable modem. but it shows as not plugged in my account. on the device/router, the led lights of USB and internal modem are brinking (which means it is trying to connect per the document), but unable to get the signal. the led lights for signal always

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8.5K

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Having trouble getting a reverse DNS set up

I've called support twice in two days to get a reverse DNS set up for a client account, I think it's fallen into a black hole as these are normally done in minutes. I have all the info and a ticket from this morning's call.

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3.2K

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Multiple phone calls to cancel business account but no one answers the phone

I have tried to call 800-391-3000 number over the last 4 days. I have tried 18 times over those days. (Yes, literally 18 times.) Every time is the same: I go through all the voice prompts, get to the purpose of my call, state that I'm calling to terminate service, and after about 30 seconds of silen

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4K

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Need a custom PTR /Reverse DNS record setup for one of our static IPs

If at all possible, we'd like to have this record in place in the next day or 2 since we are failing PCI compliance scans due to the generic PTR record being in place.

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2.9K

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New Business Speeds

I noticed that the 'new' business speeds are now 35/100/200 etc. (instead of 25/75/150 etc.) When looking at https://business.comcast.com/support/internet/comcast-business-internet-speed-increases/  I have some hope that existing customers will be upgraded to the new tiers but not sure.  

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3.7K

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Port forwarding will not work.

I've setup routers/modems before so this is not my first rodeo. I've configured the router properly on the 192.168.1.0/24 network and all of our internal clients can access resources outside the private network. My DynDNS address will successfully ping resulting with the internet IP address assigned

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36.8K

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Adding 3rd party Wireless Mesh Network

I purchased a mesh wi-fi network (TP-Link Deco AX3000) and was trying to see if there is anything I need to know/do with the Cisco DCP3939B modem before I start to install these units. Thanks

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5.8K

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Bridge Mode question

Hi All ... I am doing for volunteer work at a local church.  We are replacing their exsiting network with new gear and setting up pfsense as their router/firewall.  They have a technicolor (I believe) is the model name of their modem/router from comcast1. they do not have static ip(s)2. i would like

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4.7K

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How do I unblock a mac address automatically blocked by the modem's firewall?

I have the standard comcast business modem. I tried to use "Device Control Management > Managed Devices" to block one of my devices from connecting to WiFi from midnight to 6am. That worked, but during that time the device tried to reconnect >1000 times, which resulted in that device being blocked b

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8.3K

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BVE Shared Line Appearance

We are trying to get our phones configured so that (a) main number rings all phones [there are only 5], (b) any phone that answers can put call on hold and call can be picked up by any other phone. To avoid major training issues, it would work best if we could just use the hold button to put the cal

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