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We have a Netopia 4686-DL router that I believe provides firewall. The Netopia was necessary in handle former configuration - Windows Server 2003 requirements for static IP to allow VPN. Hoping that I can replace the Netopia with a new Netgear wirele

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SBS 2011 Essentials & SMC8014

Want to use Remote Web Access to gain access to server running SBS 2011 Essentials. Can't seem to get past the SMC8014. There is a set-up wizard for routers in SBS but seems to only work with more generic routers (like those with UPnP). Is there a guide that will help me set up this router for Remot

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Hi firstmed.    I appreciate you posting your question about getting access to this folder remotely. This would be a personal networking issue and would be beyond the Comcast Business demarcation policy. I can say that you may need additional equip

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Connect to a shared folder inside my network from an external host

Hi, I have set up a shared folder in 1 computer connected to the WiFi and I need give access to this folder to our accounting guy. I configured port forwarding but I am not getting access to the folder. Port forwarding is working; I have watch my security cameras in the office from a phone app every

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> gregw Oh wow, great answer! The step-by-step instructions taught me a thing or two and the problem is solved. Is there any discernible benefit from using a separate Cisco router/firewall instead of the one on the SMC gateway, besides the additional

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12 years ago

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SMC business class gateway in bridge mode with Static IPs

Hi, I am trying to use the firewall, VPN, VLAN etc. features on a Cisco 881 router instead of those provided on my SMC business class gateway. However, I am confused as to how to proceed with this while routing my public static IPs (I am paying for 5 from Cocmast) to devices behind my Cisco 881 rout

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@willbail Sorry ot hear that you are having trouble connecting to a VPN. We can look into this with you, if you could please send a direct message with your name and complete service address we can assist. To send a "Direct Message" to Xfinity Supp

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3 years ago

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VPN Connection fails

I have a Meraki MX65 Firewall that I am unable to establish a VPN connection to. I am not certain if my Comcast Modem is configured in the proper way and need some assistance to verify the proper configuration is in place. I have a static internet address.

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Business Comcast Internet Up ad Down all day - Braintree, Mass.

Service today has been up and down all day. Works fine for 2+ hrs, then users get knocked off VPN. I have had users get knocked off 3x today, 9:30a, 11:15a, 1:15p edt. Any update on when service will be restored completed. There was an update at 9:30 on ismyserivcedown.com, but nothing since.

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Update, today is my first time with extended use of the service for tele-comuting. I am frequently loosing connectivity with my sessions to servers at work over VPN. This morning speedtests shows my connection at aroun 6Mbps although right now the ba

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12 years ago

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low download speed

I've been consistently getting 16Mbits/s download speeds and it dropped to 2Mbits/s very recently (in the last couple of days). My upload is pretty decent though (faster than download, at ~5Mbits/s). I've rebooted the router multiple times with no luck. http://stage.results.speedtest.comcast.net/res

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Thanks for visiting our Comcast Business Support Forums, DonC1967. I apologize to hear about your experience with us. I'd like to help with your questions regarding your VPN. Please, send me a private message with your full name and phone number. I'l

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L2TP/IPSEC appear to be blocked

Well, I just had my first poor experience with Comcast Business phone support to the point where I was hung up on so I'll try to pose my question here. I am a long time user of the comcast service and SMC gateway device from them and I have multiple port forward rules set up, smtp, www, pptp, etc. T

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Can't add a static route in tec cg4131com

I am having a problem on a tec cg4131com. Every time I enter information on the static route screen, I get the error "Failed. Please try again later, Gateway IP must be reachable. Netmask must match route address". it doesn't matter what is entered, the same message is displayed. The destination ip

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I use sonic wall routers behind the comcast gateways to set up thje vpn.s   you need to manually assign one of your external ip addresses to the outside interface of your netgear router.  On the comcast gateway you need to go in to the firewall tab a

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12 years ago

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Connect 2 Offices

We have Comcast Business service at two of our locations. I would like to establish a VPN connection between the two. I am trying to use NetGear FVS318g's behind my Comcast (NetGear 3000) modems, but the performance degrades significantly with that configuration. Should I be bridging the Comcast Mod

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Accepted Solution

firstmed, I agree with Phil. It sounds like you're looking for remote network access and for that you'll need a VPN.    Yes-- you can set up forward ports on your BWG.  Port forwarding will only work if the local machine that you want traffic forw

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7 years ago

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Connect to a shared folder inside my network from an external host

Hi, I have set up a shared folder in 1 computer connected to the WiFi and I need give access to this folder to our accounting guy. I configured port forwarding but I am not getting access to the folder. Port forwarding is working; I have watch my security cameras in the office from a phone app every

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Particular websites blocked - 1and1 hosted

Hello. I cannot access my hosted website off my Comcast connection. I was able to verify that it is still up by VPNing out and checking it as well as switching to cellular. My site is located on 1and1's hosted sites. The IP address that is blocked is 74.208.87.1. Help as I really need to work on my

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Yes. I tried many browser and different PC. Seems like my home network is blocked to many China site. This happened before usually when China has big events. usually it can be back to normal in a couple of weeks. But this time is especially long and

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5 years ago

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Can't access a lot of website in China

Hello. I found that recently a lot of Chinese Website are blocked from my comcast business internet. For example: weibo.com This is a big site that can access using my cell phone data or VPN easily. But can't access with my comcast business internet. tracert here: Tracing route to weibo.com [36.51.2

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4G Backup Solution Config options

Currently we have Comcast Business in roughly 15 sites. All are configured with a firewall directly behind it with a static IP to connect back to the main office via VPN. If our router kicks over the the 4G I can live without access back to the main office, but with the static set on the firewall I

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I finally got through to a technician and they said the modem simply could not be put into bridge mode. Our IT said that there is not another option but bridge mode if we wanted vpn.  Hence we will ride out the contract and switch to a more dep

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4 years ago

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Cannot connect to VPN

I use a VPN to connect to work. Lately I cannot connect at all. I have a Comcast Netgear CG30000DCR modem gateway. In looking over the forums, there seems to be a lot of problems with this particular modem. My VPN IT guys at work say it is not on their end. something with Comcast is blocking it and

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Hello, how are you? I hope your night is going well. It sounds like you are doing all the right things. It's ideal for your modem to be in bridge mode and for the firewall in the modem to be turned off. This is perfect! If I were in this same scenari

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Comcast Business Modem, Static IP and Unifi VPN

Hello, I'll start by saying I know enough to be dangerous, but I'm definitely not a pro at this stuff. I run a small business, which means I'm also my own IT guy. I use Unifi networking gear downstream of the modem and at one of my sites I recently had to reset a modem that hasn't been touched in 18

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Hello Jeff,   Welcome to the forum. Sorry for the late reply to your question. Technically this is "normal" in network routing as it is built to take the "closes" route between source and destination. Most (not all) connectivity issue normally stems

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Internet Routing Issue

Our core business utilizes a comcast PoP on what is called Comcast legacy network. Comcast has provided us IP addresses in the 72.55.65.x range. One of our business partners utilizes a Comcast business connection at their office (located 6 miles away), we have a VPN tunnel which connects them to our

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Accepted Solution

i might feel the need to point out that the Microsoft RDP (remote desktop protocol) is not supremely secure in its inherent state, and should most definitely force Network Level Authentication (NLA) where possible. And as kraze mentioned, isolating c

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Remove Desktop Connection constantly disconnects every 4 minutes

We have recently switched from another ISP to Comcast on hopes of getting better performance. While the speed is sometimes faster, Remote Desktop Connection is certainly unstable. I used to be able to connect and stay connected for as long as i want. Now, with the change, I continue to get a dropped

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@stevet wrote: On my old comcast box I had 1-1 NAT set up foraa.bb.cc.73 -> 192.168.1.99   (This is the Netgear FVS338 and used for VPN)aa.bb.cc.74 -> 192.168.1.101aa.bb.cc.75 -> 192.168.1.102aa.bb.cc.76 -> 192.168.1.103aa.bb.cc.77 -> 192.168.1.100 T

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12 years ago

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1 to 1 NAT problems

I have just moved our comcast service to a new location. The old and new each had 5 static IP addresses that I had working at our old location with cascaded NAT settings. Connected to the comcast CG3000DCR gateway is my Netgear FVS338 VPN router. On my old comcast box I had 1-1 NAT set up for aa.bb.

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I've been running Cisco ASA for about seven years now and I'm not excited about replacing it just to get Comcast native IPv6. I've also been running an HE IPv6 tunnel for probably about four years and it has met my needs well. In my configuration it'

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9 years ago

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Static IPv6 Routing?

Hello all - I was in the IPv6 trial early on but did not heavily participate as the capabilities of the service didn't match up with my then existing IPv6 deployment. I am happy to see that Comcast is now offering static IPv6 - so I logged into my cable modem (Netgear) and find that there still is n

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Problem accessing exactly 1 site

Sometime last week, around Feb 28th, I started having issues accessing exactly 1 web site. I get infinite redirect problems warnings from Firefox, generally I get no content back It's been very puzzling as it happens even when I use a VPN. I don't believe it is any of my network setup, if I plug a m

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