Connectivity
Connectivity and managing Your Comcast Business network
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Visitor

Problems accessing our static IPs from our internal LAN

We have five Comcast static IPs here, of which only are currently in use for SSH, FTP, and HTTP/HTTPS.  Let's call them 111.222.333.111 through 111.222.333.115.  A sixth IP, 111.222.333.116, serves as the gateway for our LAN to get onto the Internet.

 

The problem is:

1.  Anyone from the outside can access the servers on our static IPs, easily, quickly, and with good throughput.

2.  Anyone on the internal LAN can access other servers on the Internet easily, quickly, and with good throughput.

3.  People on the internal LAN here can access the servers on our static IPs only with great difficulty, very slow operation, frequent timeouts and frequent disconnects.

 

It's not like it doesn't work at all, but the performance and reliability is completely unacceptable.  Again, outside access to our servers is near-perfect, internal access to the outside Internet is near-perfect, but internal access to our servers is unacceptable.

 

Since the servers are on dedicated static IPs, accessing them from our LAN should be exactly the same as accessing any other website on the Internet.

 

I have been on the phone at great length with Comcast customer service people and they have no idea what to do.  Most recently, this morning, I was on the phone for almost an hour with a customer service rep who had no clue what to do.  I finally asked to speak with someone who knew about this stuff, and he put me on "hold" and then disconnected me.  Yet another hour wasted with no result.

 

Two days ago a Comcast technician came out here and replaced the modem, ran some tests, and declared himself unable to diagnose the problem or guess what the solution might be.

 

I  have connected a workstation directly to the Comcast router, bypassing all of our internal network infrastructure, to rule out anything in our internal network that could account for any of this.  So, whatever the problem is, it's either in the Comcast router or out on the Comcast network.  In either case, it's Comcast's problem to fix.

 

I need to speak with someone at Comcast who knows about this stuff and can help me diagnose the problem.  I have tried several times to get past the customer service reps and get to someone who knows what's going on and have had no luck.

 

Someone please tell me if you have any ideas and also tell me how I can get in touch with someone who really knows enough to be able to help.

 

This is getting beyond frustrating.

 

Thanks...

 

Eric Poole

eric@rkt-tech.com

 

 

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Official Employee

Re: Problems accessing our static IPs from our internal LAN

Thank you so much for visiting our Comcast Business Support Forums, Eric.

 

I'll need to take a look at your internal network configurations, signal levels, run some test on the Static IPs and, ask you a few troubleshooting questions although, you provided some pretty detailed info here so, I have a pretty good idea of what you're dealing with.

We're able to support the Comcast equipment, signals and, IP delegations for the Gateway Static provided by Comcast. I'll do my best to assist you with your issue. It sounds like you've had a frustrating experience and I sincerely apologize for that. 

 

Please send me a private message with your full name, address and, the account number to get started.

I look forward to hearing from you soon.

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Visitor

Re: Problems accessing our static IPs from our internal LAN

Thank you, Michelle.  I appreciate your lightning-fast response.

 

Please tell me how I can go about sending you a private message and I'll provide all the details. I don't see an obvious way to send private messages.

 

Just so you'll know, the Comcast tech (who came out here) and the Comcast over-the-phone customer service reps have all tried various diagnostics and can't find anything wrong.   One of the phone reps did say she saw some things that shouldn't be, but the tech who came out here said the phone customer service reps don't know how to interpret things like that.  😐

 

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Official Employee

Re: Problems accessing our static IPs from our internal LAN

Sure thing.

 

Click my name and you'll be routed to my profile. From there, you'll see the option to send me a message on the right side.

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Visitor

Re: Problems accessing our static IPs from our internal LAN

Got it, thanks.   I did send you a detailed message but it looks like all the line breaks were lost.  Hope you receive it in readable condition.

 

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