Connectivity and managing Your Comcast Business network
Male IT Specialist Holds Laptop and Discusses Work with Female Server Technician. They're Standing in Data Center, Rack Server Cabinet is Open.
New Member

Issues connecting to remote host

Hi Comcast support forum,


I'm having issues connecting to a series of hosts from my Comcast Business Class connection. I do not have that problem from two different internet connections.


Let me explain the issue more in depth:


I tried connecting to the host using a proprietary service which failed. The service claimed it cannot reach the specified host.

I checked if I have basic IP connectivity using ping, which however timed out. Knowing that some hosts might silently drop ICMP ping packets I ssh'ed into a different machine on a different network (in fact geographically located quiet close to the machine running the service I tried to connect to) and pinged the host in qustion from there. This time I got a response.


I ran a traceroute from my local Comcast connection to the host in question, but the traceroute got stuck at a certain router ( which I will talk a bit more about in a second. The traceroute form the machine I ssh'ed into did successfuly passed that router, but got stuck on a later host. I suppose some kind of firewall drop. However, I was always able to ping the host I can't reach from my Comcast account. 


I decided to check who the IP adress resolves to is registered to and try to get in contact with them. The IP address is registered to a German company link11. I shot an email to and explained my issue. To my suprise I did receive an answer stating that the issue was fixed.  However I continue to have the exact same problem.

I hope you guys have a better guess at what's broken, how to fix it and who to get in contact with to fix it. Please let me know!


- Daniel

0 Kudos