Linksys router blocked website?

[mrneedhelp]

my problem must be related to some security settings, as I can access all websites from the computers that are hooked up wirelessly, but not from the one    that is hooked up to the cable modem.

this pc runs XP and my wife uses AOL, and perhaps the problem dwells there.

I am on the line (second time) with linksys as we speak... now they say they will get a tech to call me in two hours....

[Squat]

Set the MTU to 1492...this happens every time I move and it always fixes it.

[WhoAreYouKiddin]

You rock.  This totally resolved the problem I was having (as described by everyeone else in this thread).

Thanks much!!

[Addison]

I have the same problem with a linksys wireless router. I can connect to my website directly through he cable modem but not through the wireless router. So my site is not blocked. I tried all of the above fixes...when I changed MTU to 1492 it worked for about 10 min....nothing after that. Can get to other sites...just one bloked..happens to be my domain with my email server too - any ideas???

[Addison]

Update on my situation...went to Walmart this morning and bought the same woreless router (v7.2 instead of v.5) for $39 and it fixed the problem. Waisted a Saturday on trying to figure it out.

Message Edited by Addison on 12-07-2008 08:54 AM

[Parallax100]

In my case, my router suddenly started blocking Yahoo and Flickr ... but nothing else.  It's a WRT54G with latest firmware update.  It worked fine until today.  After reading all of the above to no avail, my problem was solved by changing the MTU setting to 1482.  (1492 does not work; lower values do, e.g., 1450).  Hope this helps.   A day wasted, but so far, I've avoided spending money on the problem.

[gbrugman]

I found the solution for this problem, Yes! Because everyone with this problem tried to reach a frequently accessed site that suddenly stopped working. It looks like that somewhere in the router the register full is with this address. Solution is change the router MAC address. In the software you can clone the address of your  PC or another PC. Next step is to reset you modem so it will reconnect with you router. It works for me. Changing the MTU didn't help for me.

I came up with this solution after realizing that without router, direct connected to the modem I could reach this blocked website.

Success

[smichaele]

After spending four hours over a two day period and $40 for Linksys support (because my router, a BEFSX41, was out of warranty) my problem still isn't solved. What's frustrating is that with each new person they put on the phone we wound up redoing much of what the previous support person took me through. Yes, we already connected the computer directly to the modem to verify the problem is with the router; yes, the previous person changed the MTU with me; we went through resetting the router and downloading firmware more than once. It was ridiculous and at the end they told me the router's defective and they'd give me a $15 credit towards a new one. The support was useless and their solution was to give me a $15 credit after I spent $40. I eventually convinced them to refund the $40 and I'm now looking for a router from a different manufacturer.

[lightdrizzle]

I recently ran into a similar problem with a customer.  We were able to isolate a little more information that may be helpful by analysing our server log files.  Each time the problem happened, we saw a spike of requests for the same file (in our case, an image referenced in a jquery style sheet).  We couldn't reproduce the behavior, it seems to be a bug specific either to that customer's IE6 version or browser settings.  Perhaps the router sees the spike of requests, thinks it is a denial of service attack, then shuts down the server's ip address?

So if you are a site owner, look for spikes of requests, if they are by design you may be able to fix the problem by reducing network chatter.  It may be caused by a bug in IE6 though in which case there isn't much you can do.

We ultimately recommended the customer switch to a router from a different manufacturer since these technical solutions were too onerous and difficult to verify.

[gbrugman]

When you replace the router, you probably use/get another MAC address and the problem will be disappeared until the register is full again. So will it's a working solution to change the router, to change a MAC address is simple and working to.