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Can't Access Certain Websites Through Linksys WRT54G Router

Last week, I had added one more router to expand my office network but faced an unexpected issue. I purchased and configured Linksys WRT54G wireless router to add more computers to my LAN but after configuring it, devices connected to the Linksys router were facing troubles with accessing certain websites. Those computers connected directly to the modem are facing no problems with accessing those websites but only those behind WRT54G are having this trouble. It took me one day to find the reason and fix that. This guide explains this issue in details with step by step instructions if Linksys Device blocks some websites.

Linksys WRT54G Router Blocks Some Websites

Due to the following reasons, a router may block some websites on computers connected to it.
  1. The browser security might be set high.

  2. The MTU (Maximum Transmission Unit) set is improper.

  3. Some ports are blocked (mainly 443 SSL port).

Solution

I recommend you to follow the steps below to resolve this issue.
  1. Set browser security to medium

    To set browser security to the minimum in Internet Explorer, follow the steps below.

    • Open Internet Explorer
    • Click on Tools
    • Click on Internet Options
    • Click on the Security tab
    • Click on the Custom Level button
      Trouble loading websites

    • Under Reset to select Medium-low
      Cannot access websites through WRT54G

  2. Set proper MTU on WRT54G Router

    To set proper MTU size on your Linksys Wireless Router, select the options, manual in MTU under the settings tab.
    Enter the proper MTU size

  3. Port Forwarding

    Port forwarding to enable blocked websites on Linksys router and to perform this follow the steps provided in the link below.
    How to Perform Port Forwarding On Linksys WRT54G

  4. Reset and Reconfigure

    Hold the reset button for 30 seconds and wait till the power light is steady. To learn how to reconfigure it, click on the link below:
    How to Setup Linksys Wireless Router

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Alex George
Alex George has Engineering graduation in Computer Science and an MBA in Finance. He had been working as a senior Network Engineer for ten years. His specialization is in Cisco products. Traveling is one of his hobbies and visited various places as part of his onsite work. He visited different places as part of his onsite work like New York, Dubai, London, etc. Right now Alex is a director of one of the leading career development firms in India, which trains students for UPSC, SSC, and PSC examinations. He guides a lot of students to get selection for various prestigious institutions like CBI, Income Tax Department, etc. Alex George is a stock market investor and a very active intraday trader. Engineering Background: He has a B.Tech in Computer Science and Engineering and passed different network and security courses like CCNA, CCNP (Security), CEH, and various Microsoft certifications. Finance Background: Alex has an MBA in Finance. He is an active intraday trader and a Share Market Investor. Webmaster Skills: Alex is a blogger since 2004. He has a working knowledge of HTML, CSS, PHP, and JavaScrip.