Cannot reach some websites problem and workaround

Hi, Problem: Through a linksys router, whether standard firmware or dd-wrt, the router allows some web pages to work, whereas others are inaccessible. They just hang and time out. Affects both wired and wireless. The router is the problem as evidenced that all web sites work fine when plugged directly into the internet, bypassing the router. I looked on several forums and the suggestions seemed to be things like: - modify your MTU value - check the firmware/upgrade - reset to the default settings The responses on these threads show most of these methods do not work. I have even seen some people replacing their boxes after talking to Linksys support about this issue. Anyway, I had this issue with V4 WRT-54G with dd-wrt.v23 SP2. What I did to stop the problem occuring was: disable dnsmasq I am not sure linksys standard firmware lets you disable dnsmasq? DNS masquerading is when your router clients will send their dns queries to the router, and the router will forward them on to the ISP dns server. With dnsmasq turned off, the clients will send their queries directly to the ISP dns themselves. I tried this after noticing that the web sites I could reach, I could not resolve through the router, whereas they resolved fine with the ISP's dns server. I also noticed that the sites that tended not to work were big sites that have things like akamai on the back like windowsupdate. So now the clients are sending their DNS queries directly to the ISP dns, and opendns as backup. And that works fine. I wish I had come accross a post like this several hours of troubleshooting back.

HI,
Open Keychain Access (Applications/Utilities)
Select Passwords on the left. Then delete the username on the right.
When you logon to a site using a username and password that information is saved to the Keychain Access application.
Carolyn

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