Re: Problem with some network connections
From: Robert L [MS-MVP] (noreply_at_hotmail.com)
Date: 07/26/04
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Date: Mon, 26 Jul 2004 14:23:56 -0500
thank you for the input.
-- 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. Robert Lin, MS-MVP, MCSE & CNE Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on http://www.ChicagoTech.net This posting is provided "AS IS" with no warranties. "Jack" <JackMDS at veriz0n.net> wrote in message news:OhzyQmycEHA.3476@tk2msftngp13.phx.gbl... > Hi > May be this can Help. > Download DrTCP: http://www.dslreports.com/front/DRTCP021.exe > Run the program, it will show the current settings of TCP/IP parameters. > Write them down. > You can change any variable that you want, click Apply, and Reboot the > computer, if no good; you can always change to your original values. > Start with: > MTU - DSL =1492, Cable = 1500, ISDN=1322, DialUp = 576 > Tcp Receive - 256960 (This is the variable to play with!) > Window Scaling - Yes > Time Stamping - No > Selective Acks - Yes > Path MTU Discovery - Yes. > Black Hole - NO > Max Duplicate - 2 > TTL - 64 > These settings are not written in "stone" there is variability depending > on > the computer other setting. So try few setting and measure your Download > for > each setting. > In addition, in case a person has a Router the Router's MTU if set > differently can affect the general MTU. > The Speed of Internet Connection: http://www.ezlan.net/Internet_Speed.html > > > > "Robert L [MS-MVP]" <noreply@hotmail.com> wrote in message > news:eOej1rxcEHA.244@TK2MSFTNGP12.phx.gbl... >> 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. >> >> Robert Lin, MS-MVP, MCSE & CNE >> Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on >> http://www.ChicagoTech.net >> This posting is provided "AS IS" with no warranties. >> >> "Marcin" <marcin@itookmyprozac.com> wrote in message >> news:fcf4f78.0407260509.362e0b9a@posting.google.com... >> > Hi, >> > >> > I have one problem with my Windows XP. I have slow internet connection >> > (slow means that connecting to server is slow, but after connect is >> > works ok, dns resolving is fast). I have problem with some servers - >> > when I try to connect (some http servers, ssh servers) I receive >> > timeout message. But I have Windows95 on my old P133. When I try to >> > use it - I have no problem with connection (connect is slow, but after >> > connect is works fine), so I guess that there is a possibility to set >> > up Windows XP to work with those servers... >> > >> > Any suggestions? >> > Thanks in advance. >> > >> > Marcin >> >> > >
- Next message: Michael D. Alligood: "Re: how to find other computers connected to the same router"
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