Solved

Slow Internet

Posted on 2011-09-21
1
241 Views
Last Modified: 2013-12-02
We have Cable Internet Service (15mb Down/2mb Up) and 15 workstations with SBS2011 as DC / DNS / DHCP. All workstaions receive IP / DNS/ Gateway Information from DHCP server.
From time to time, when I visit CNN.COM (for example, but it happens to any site), it shows text overlapping each other with no images.

I have to click the Refresh button several times to display a complete page.
It does not happen all day. It is just intermittant and that is what is driving me crazy because it is difficult to pin-point the source of the problem.

We have several static IP addresses, so I connected the ethernet cable from ISP's Cable Modem to a switch. From the switch, one ethernet cable goes to a single computer with a public IP address and another ethernet cable goes to my CISCO 1801 router.
All 15 workstations and a few servers are all connected to CISCO 1801 router. My CISCO does NAT, Port Forwarding ... etc.

Today when I realized that I had to click several times to display a web page like CNN, I quickly connected to that PC (with static public IP) and there was NO PROBLEM in surfing the same web page. But my workstation continued to fail to display the website. I tried Foxnews.com on mine and I had to refresh the screen several times, but that public IP assigned PC displayed a complete page every time without having to press Refresh button.

So I concluded that there is something wrong with the CISCO router or something on the network is causing the delay in browing the internet. But the difficulty is that 95 percent of time people don't have the problem.

I have reset my CISCO router many times to know that resetting CISCO 1801 did not solve the problem. I am at a loss. Where do I go from here?


0
Comment
Question by:sglee
[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
1 Comment
 
LVL 58

Accepted Solution

by:
Cliff Galiher earned 500 total points
ID: 36578347
You are at a place where guessing does no good. Use something like httpwatch to SEE what requests are occurring, what times they are taking, and what errors are being returned. That is at least a start.
0

Featured Post

What Is Transaction Monitoring and who needs it?

Synthetic Transaction Monitoring that you need for the day to day, which ensures your business website keeps running optimally, and that there is no downtime to impact your customer experience.

Question has a verified solution.

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

On a regular basis I get questions about slow RDP performance, RDP connection problems, strange errors and even BSOD, remote computers freezing or restarting after initiation of a remote session. In a lot of this cases the quick solutions made b…
Have you considered what group policies are backwards and forwards compatible? Windows Active Directory servers and clients use group policy templates to deploy sets of policies within your domain. But, there is a catch to deploying policies. The…
This video Micro Tutorial shows how to password-protect PDF files with free software. Many software products can do this, such as Adobe Acrobat (but not Adobe Reader), Nuance PaperPort, and Nuance Power PDF, but they are not free products. This vide…
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…

728 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