Re: Cannot access some websites
From: Robert L [MS-MVP] (noreply_at_hotmail.com)
Date: 01/03/05
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Date: Mon, 3 Jan 2005 09:59:15 -0600
it couls be mtu issue. quoted from http://www.ChicagoTech.net
Can't access some web sitesSymptoms: 1) If you're using MS ICS or Windows
server as router to access the Internet, your clients may not be able to
access certain web sites. However, the ICS host or the server doesn't have
this problem.
2) After installed a new router or cable modem replacing dial-up to access
the Internet, you can't access some web sites.
3) You also find that most web sites you can't access are block to ping or
they are security sites using HTTPS.
Causes: 1) The problem occurs because many web servers block ICMP messages
and the packets are dropped. As a result, the requested web site doesn't
load.
2) This problem is caused also by an incompatible MTU networking setting.
You may try to install the latest SP. If you use MS ICS, you may want to
configure all your Client computers to use the new, lower MTU as the default
for all Internet communication. To modify the MTU size, locate the following
registry key: HKEY_LOCAL_MACHINE\ SYSTEM\ CurrentControlSet\ Services\
Tcpip\ Parameters\ Interfaces. If you use a router like Cisco DSL Router,
you may want to adjusting the PPPoE MTU Size. For example, to adjusting the
PPPoE MTU Size on the Cisco DSL Router, do
interface ethernet0
no shut
ip address <ip address> <subnet mask>
ip adjust-mss 1452
-- For more and other information, go to http://www.ChicagoTech.net Don't send e-mail or reply to me except you need consulting services. Posting on MS newsgroup will benefit all readers and you may get more help. Bob Lin, MS-MVP, MCSE & CNE Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on http://www.ChicagoTech.net Networking Solutions, http://www.chicagotech.net/networksolutions.htm VPN Solutions, http://www.chicagotech.net/vpnsolutions.htm VPN Process and Error Analysis, http://www.chicagotech.net/VPN%20process.htm VPN Troubleshooting, http://www.chicagotech.net/vpn.htm This posting is provided "AS IS" with no warranties. "Ashish Thakkar" <romancingwithlife@fastmail.fm> wrote in message news:22419c20.0501030230.2e9cbcff@posting.google.com... > Hi, > > I am not able to visit some websites thru my cable connection. > > Earlier i cudnt visit my bank's website and one of my personal > website(i cant even check its email on outlook express). > I can however view this website thru google translate. > > Then again i cud not login to my clients FTP. > > After some days now i can access my bank's website but cant get to > yahoo mail main page - http://mail.yahoo.com (i can open > www.yahoo.com) > > I get page cannot be displayed. > > Please help.I have absolutely no clue why this is happening. > > > Regards, > AHT
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