I found a solution to the ICS problem with our DSL connection. I’m networked via an ethernet cable from the desktop, the DSL goes directly into the desktop, and I get it all via a LAN with Ethernet cable.
It’s our cheap shorterm network.
Anyhow, Dial-up, everything was fine. We got DSL on Friday, and fwomp … I couldn’t access first … weather.com, then site after site went down, wouldn’t load for me. Just plain wouldn’t load. The desktop could load anything and everything.
Case in point. If I went to a site that had more than one language interface, or country interface, I could load anything but USA stuff. Searching sites were like this, movie sites, weather sites, etc. Some plain whole websites were inaccessible for me. Homeshool type sites, and it made no sense.
So I finally found a solution. I’ve been typing in questions galore in whatever search engines I COULD use on my computer. Dogpile, for instance. I usually use Yahoo. So today there was a time when I thought about it and went to the desktop and searched. See, all weekend Frank was at the desktop when I thought about it, so I’d not searched there.
I opened Yahoo.com on the desktop a little while ago and searched twice. Wasn’t happy with what I found the first time, so I added WIN XP ICS to “can’t open some web sites sharing DSL”.
I scanned the entries Yahoo gave me, and nearly shook as I read one. I clicked on it, and here is the pertinent info and the link:
6. RE: Client can’t open some web pages
lhhood423 May-18-02 10:30 AM
In response to message 5
Can’t access some websites while using a shared PPPoE connection
Intended For
Windows XP
Windows 2000
Windows Me
Windows 98
If you’re using Windows’ built-in support for Internet Connection Sharing, and your Internet connection is facilitated by PPPoE software (such as Enternet 300) or Windows XP’s built-in PPPoE, you may experience this problem. Although any web site will be accessible on the “Host” computer, certain web sites will never load successfully from any of the “client” machines. (If you don’t know what “Hosts” or “Clients” are with regard to ICS, read Internet Connection Sharing.) The problem is caused by an incompatible MTU networking setting: Windows’ default is 1500, but PPPoE uses 1492 or 1454. Here’s how to fix it:
Find the IP address of your gateway. If you’re using Windows 2000 or XP, run IPCONFIG at a command prompt on the Host computer. If you’re using Windows 98 or Me, run WINIPCFG on the Host computer. Either way, you’ll get an address that looks like xxx.xxx.xxx.xxx (where the x’s represent numbers).
Then, go to one of your Client machines, and type the following:
PING -f -l 1500 xxx.xxx.xxx.xxx
(where xxx.xxx.xxx.xxx is the gateway address you obtained in the first step). You’ll probably get an error message indicating that it must be fragmented. If you do, type the following:
PING -f -l 1492 xxx.xxx.xxx.xxx
If that doesn’t work, try this:
PING -f -l 1454 xxx.xxx.xxx.xxx
The numbers in each of these examples (1500, 1492, 1454) are the MTU values. Continue issuing this command with lower and lower MTU numbers until you get ping responses instead of an error message. The highest MTU value that works is the one you need to be using. If an MTU of 1500 (the first command, above) does not produce an error, then this solution won’t work for you.
The next step is to configure all your Client computers to use the new, lower MTU as the default for all Internet communication.
Windows 2000 and XP:
Run the Registry Editor (REGEDIT.EXE) on one of your “Client” machines.
Navigate to HKEY_LOCAL_MACHINE\ SYSTEM\ CurrentControlSet\ Services\ Tcpip\ Parameters\ Interfaces.
There should be several subkeys under the Interfaces key; most likely, you’ll find three. View the contents of each key by clicking, and find the one that corresponds to your primary network adapter; it will be the one with more values than the other two, and will have an IP address value set to something like 192.168.0.x.
Once you’ve found the correct subkey, create a new DWORD value in it (Edit -> New -> DWORD Value), and name the value MTU.
Double-click the new value, choose the Decimal option, and type the MTU value determined above.
Click Ok when you’re done – you’ll need to restart Windows for this change take effect.
Repeat this for each Client machine.
Windows 98/Me:
Run the Registry Editor (REGEDIT.EXE) on one of your “Client” machines.
Navigate to HKEY_LOCAL_MACHINE\ System\ CurrentControlSet\ Services\ Class\ Nettrans\.
Under that branch, find a key (numbered, such as 0005) that contains has TCP/IP assigned to the DriverDesc value.
Select New from the Edit menu, then String Value, and type MaxMTU for the name of the new value.
Double-click the new value, choose the Decimal option, and type the MTU value determined above(mine is 1454).
Click Ok when you’re done – you’ll need to restart Windows for this change take effect.
Repeat this for each Client machine.
This worked. I already had guessed that PPPoE was the problem, but hadn’t found exactly WHY. I’d read something about MTU’s before, but never saw a nice neat “HERE’S How to SOLVE your PROBLEM” post anywhere.
It was straightforward and oh so wonderful! Nearly as nice as that regedit thing that gets rid of “shortcut arrows” on icons and shortcuts. Ah, they are both just as nice. Now I can go to Spiderman.sonypictures, weather.com, triviumpursuit, …. and on down the line. All black listed sites are back!