ADSL issue

[dstonek]

I have a small network with PCs (XP, W98-2, Millenium) and Mac (OS9).
I have a new ADSL Internet connection (dynamic IP)
The XP machine is the internet administrator.
First thing I´ve done:
I checked the boxes to share Internet with the other computers (they have static IP: 192.168...) and to enable the personal firewall.
All is working fine but the clients could not download email from a certain server (using Eudora, Outlook, Incredimail) as the XP server does.
The Pop server shows the number of messages and they begin to download but only a bite.
The same thing is happening browsing a few websites, it is impossible to access to them. (weather.com)
I don´t know if it is a coincidence but those site "refuse" the ping command.

I was making some tests. I changed the internet server for a computer with W98-2 and all those problems have gone.

I need the machine with XP to be the internet server.

I was making another tests:
I disabled XP internet sharing and security and I´ve tried with Winproxy, Winroute and Wingate (third-party software), ZoneAlarm (as a firewall)(enabling and disabling it) but always the same problem with those servers.
Any ideas are welcome. Thanks

 

[Zedric]

I think this is an MTU problem. Check out this post: http://www.xp-erience.org/forum/showthread.php?s=&threadid=10198&highlight=MTU
They recommend Cablenut: http://www.cablenut.com

 

[mafia-man]

You ave to edit / select the ports that are open in the properties of the internet connection on the ADSL server.

there are a list of ports already created just tick the ones u need and u can also create some more.

remember the compter with which u are shereing the ADSL is essentialy a PROXY server so will have some limits to incomeing transfers.

Hope this helps.

 

[Zedric]

Originally posted by mafia-man
You ave to edit / select the ports that are open in the properties of the internet connection on the ADSL server.

there are a list of ports already created just tick the ones u need and u can also create some more.

You are confusing this with another problem.

remember the compter with which u are shereing the ADSL is essentialy a PROXY server so will have some limits to incomeing transfers.

What? No, it's not. Besides if he's hitting the capacity limit of the server it would just go slower.

 

[dstonek]

Thanks for answering!
I´ve tried cablenut but without any changes.

 

[Zedric]

What did you set the MTU to? Have you tried several values?

 

[dstonek]

MTU=Maximum transmition unit.
I cannot found this item matching these words.
I´m attaching a snapshot of my screen (mtu.jpg)