Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Continue to lose internet

Posted on 2004-09-02
3
Medium Priority
?
463 Views
Last Modified: 2013-11-30
Hello all,

I have a problem that I can't seem to resolve.  I just got a home business broadband account, therefore Time Warner came out to my home and replaced my old Cable Modem with a new Cable Modem Router (Ambit router).  I already own a Belkin Router with a built-in firewall.  I would like to continue using my Belkin Router/Firewall with the new Cable Modem Router.

I have 3 PC's (Windows 2000 server and 2 Windows 2003 servers) currently on my network and 1 laptop(Windows XP).  I have two nic's in one server...1 nic has a static external IP and plugs straight into the Cable Modem Router (no problems there - I don't lose internet on that nic).  The other nic goes into a 3Com 8-port hub as well as the rest of the PC's and the hub is connected to the Belkin Router...the Belkin Router is daisy-chained to the Cable Modem Router.  My problem is that i continue to lose internet access.  I believe it has to do with the Belkin Router talking to the Cable modem Router (but I don't know how to fix it ) because I noticed in the security log of the Belkin Router Firewall that it shows attacks from the IP of the Cable Modem Router.  The Belkin Router has a IP of 192.168.2.1 and the Cable Modem Router has a iP of 192.168.1.1.

I can not change the IP of either of the routers..nor does the Belkin Firewall have a way to include a trusted network/zone.  I lose internet access temporarily and then it comes back intemittenly.  I am not using a crossover cable for any of the connections.  The Belkin Router has a CAT5 plugged into the WAN port going to one of the Cable Modem Router LAN ports.  The Belkin Router connects to the hub with a common CAT5.  MAC Addressing is disabled on the routers.

I'm only experiencing interent issues.  The internal network works perfectly fine.  The interenet loses connection every so often then comes back and then loses connection again..so on and so on.  

Any suggestions and help is appreciated.  Thanks.
0
Comment
Question by:zilantyas
[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
  • 2
3 Comments
 
LVL 15

Accepted Solution

by:
adamdrayer earned 2000 total points
ID: 11963872


  Serv1------------------------Router
      |                                      |
      |                                      |
8-port hub---------------------Cable Modem Router---------------ISP
  |        |    \
  |        |      \
Serv2   |         Laptop
           |
          Serv3


Is this your setup?  There is a loop that may be causing the router to suspect IP spoofing.

You might want to think about this setup:

  Serv1
           \                              
             \
              Router---------Cable Modem Router---------------ISP                          
            /
          /
8-port hub
  |        |    \
  |        |      \
Serv2   |         Laptop
           |
          Serv3

0
 
LVL 2

Author Comment

by:zilantyas
ID: 11976462
Thanks!  adamdrayer,

That corrected my problem.  I'm no longer losing internet connectivity.  I plugged both nics of Serv1 into the Router.  Thanks again.
0
 
LVL 15

Expert Comment

by:adamdrayer
ID: 11976475
no problem =)
0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Ready to improve network connectivity? Watch this webinar to learn how SD-WANs and a one-click instant connect tool can boost provisions, deployment, and management of your cloud connection.

Question has a verified solution.

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

When you try to share a printer , you may receive one of the following error messages. Error message when you use the Add Printer Wizard to share a printer: Windows could not share your printer. Operation could not be completed (Error 0x000006…
This article is in regards to the Cisco QSFP-4SFP10G-CU1M cables, which are designed to uplink/downlink 40GB ports to 10GB SFP ports. I recently experienced this and found very little configuration documentation on how these are supposed to be confi…
Internet Business Fax to Email Made Easy - With  eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…

670 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