Solved

Comcast VPN via PPTP Connection

Posted on 2015-01-16
9
582 Views
Last Modified: 2015-01-26
Hello, I have a client and we had VPN working perfectly until Comcast changed our Comcast modem to a new and improved unit.  Now our VPN connections do not work, in fact I cannot ping or connect to our router (static ip address from comcast).  I can however, ping the comcast gateway ip address.

Any thoughts of what I need to configure on the comcast modem to make this work?
0
Comment
Question by:tucktech
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
9 Comments
 
LVL 11

Expert Comment

by:rharland2009
ID: 40553938
Sounds like Comcast had the static IP tied to the MAC of the old modem. Can you verify with them or the client what the IP that is handed to your router should be today?
0
 
LVL 83

Expert Comment

by:Dave Baldwin
ID: 40554372
Do you have a residential or business account?  Residential accounts are very restricted.
0
 

Author Comment

by:tucktech
ID: 40554475
business account
0
Are You Headed to Black Hat USA 2017?

Getting ready for Black Hat next week? Kick things off with the WatchGuard Badge Challenge and test your puzzle and cipher skills. Do you have what it takes to earn our limited edition Firebox Badge? Get started today - https://crimsonthorn.net

 
LVL 77

Accepted Solution

by:
Rob Williams earned 500 total points
ID: 40554772
Might they have replaced the modem with a combined modem router unit?  This is common.  If so the new unit is likely preforming NAT and your existing router now has a private IP rather than public.  To change the combined units to effectively be a basic modem you need to put them in Bridge mode.
0
 

Author Comment

by:tucktech
ID: 40559977
After about 3 hours of phone calls and a lot of frustration they did put in a new modem that has the wifi and from Comcast they cannot provide pass through with this type of unit. Comcast is replacing the unit today.  I will advise if I still have problems.
0
 
LVL 77

Expert Comment

by:Rob Williams
ID: 40560022
Sounds good.   All the WiFi units are combined modem/router, though some you can put in bridge more which also disables WiFi and DHCP.
Let us know how you make out.
0
 

Assisted Solution

by:tucktech
tucktech earned 0 total points
ID: 40561228
We had the modem changed to one without wifi and we put the modem in pass through modem, it works....
0
 
LVL 77

Expert Comment

by:Rob Williams
ID: 40561254
Glad to hear.  Thanks for updating.
0
 

Author Closing Comment

by:tucktech
ID: 40570197
As noted above Comcast gave us a piece of equipment that does not support our needs.
0

Featured Post

Flexible connectivity for any environment

The KE6900 series can extend and deploy computers with high definition displays across multiple stations in a variety of applications that suit any environment. Expand computer use to stations across multiple rooms with dynamic access.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Some of you may have heard that SonicWALL has finally released an app for iOS devices giving us long awaited connectivity for our iPhone's, iPod's, and iPad's. This guide is just a quick rundown on how to get up and running quickly using the app. …
Tired of waiting for your show or movie to load?  Are buffering issues a constant problem with your internet connection?  Check this article out to see if these simple adjustments are the solution for you.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Windows 10 is mostly good. However the one thing that annoys me is how many clicks you have to do to dial a VPN connection. You have to go to settings from the start menu, (2 clicks), Network and Internet (1 click), Click VPN (another click) then fi…
Suggested Courses
Course of the Month10 days, 3 hours left to enroll

624 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question