ADSL routing issues

[Harryinashed]

Hi all,
I have set up my Wireless network router to share my ADSL
internet connection. I am using a seperate modem which is
then connected to my wireless router. I have no problem
viewing most pages and downloading files. The problem
occurs when i try to view hotmail or yahoo email accounts
and microsoft update webpages. These simply refuse to
work and come back with a DNS error. I have treid
removing the hardware firewalls on both the modem and the
router and this makes no difference. If i connect another
adsl modem to the computer (an old modem that can't
connect to a router) and then the problem disappears.
This is a network wide problem and can be solved on any
machine by using a standalone modem. I have also tried
removing the XP firewall along with the other 2 firewalls
and this makes no difference (the xp firewall allows me
to access anything with my old modem). Does this mean
that there is a problem with the setting of my new adsl
modem, if so why are only certain sites affected, or is a
problem with the way the computers talk to the router? I
am really stuck on this issue and no one seems to be able
to help (.

Thnaks in advance,
Harry

 

[Hans-Georg Michna]

I have set up my Wireless network router to share my ADSL
internet connection. I am using a seperate modem which is
then connected to my wireless router. I have no problem
viewing most pages and downloading files. The problem
occurs when i try to view hotmail or yahoo email accounts
and microsoft update webpages. These simply refuse to
work and come back with a DNS error. I have treid
removing the hardware firewalls on both the modem and the
router and this makes no difference. If i connect another
adsl modem to the computer (an old modem that can't
connect to a router) and then the problem disappears.
This is a network wide problem and can be solved on any
machine by using a standalone modem. I have also tried
removing the XP firewall along with the other 2 firewalls
and this makes no difference (the xp firewall allows me
to access anything with my old modem). Does this mean
that there is a problem with the setting of my new adsl
modem, if so why are only certain sites affected, or is a
problem with the way the computers talk to the router? I
am really stuck on this issue and no one seems to be able
to help (.

Harry,

one possibility is an MTU problem. Please have a look at
http://www.michna.com/kb/WxNetwork.htm#Cannot_browse_some_web_sites.

Hans-Georg

 

[Guest]

That sorted it, although i had to go into the registry to
do it, which was not supposed to be the case on XP SP2.
Bizzare! Thanks!

 

[Hans-Georg Michna]

That sorted it, although i had to go into the registry to
do it, which was not supposed to be the case on XP SP2.
Bizzare! Thanks!

Interesting, and thanks for reporting back. I will make a change
in my web pages indicating that the problem can occur with the
service packs as well.

Hans-Georg