Trying to Figure out What's OK and What to Block

I have a Win Xp computer that I can't seem to get working right on the
internet.

I have a broadband connection and a router. The other computer
connected to the same router works fine.

I had the old version of Kerio (2.1.5) on both, I switched to the free
Tiny firewall on the problem computer just to see if the firewall was
the problem.

When I first start it it works fine. After a while I cannot connect
to anything on the internet unless I reboot.

I am trying to set up the rules so that I block everything that
doesn't need to connect to the internet.

One thing I am not sure of is something identified only as "SYSTEM"
which looks like it wants to send and recieve UDP traffic to the
router and send and recieve to and from the other computer.

Could blocking this be causing me to lose the internet connection?

I do not use the router as a way to network the two computers. I only
use it to allow each computer onto the internet. So there is no
logical reason for the computers to be talking to each other. Usually
it says something to the effect that one computer wants to send a UDP
datagram to the other computer on port 137. Should I allow this?

-Fishlips



"Delicious Fried"
.

Relevant Pages

  • Re: Slow Internet Connection Sharing
    ... Router between the Modem and Computer. ... Internet Connection Sharing. ... can you log into Hotmail and Messenger? ...
    (microsoft.public.windowsxp.help_and_support)
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    ... that's the Internet (the Wide Area ... LAN side of the router is ... "Internet Connection Wizard" are relevant to the way I was trying to ... and 5 buttons on the left (Wizard, Wireless, WAN, LAN, DHCP). ...
    (microsoft.public.windowsxp.network_web)
  • Re: Unable to obtain a server- assigned IP address Try again later or enter an IP address in Net
    ... I can go to Control Panel - Network and Internet Connections - ... If yours is not a subset of your router, ... I have a LINKSYS router (4 port connection) - I have my cable modem ...
    (microsoft.public.pocketpc)
  • Re: Urgent! New router and big disaster
    ... The SBS DNS server, running on ... its IP it means that your problem is now DNS. ... forward ports to it reliably in the router. ... I should have been more clear about internet connection.. ...
    (microsoft.public.windows.server.sbs)
  • Re: Urgent! New router and big disaster
    ... Both NICs should point to his internal IP for DNS. ... forward ports to it reliably in the router. ... I should have been more clear about internet connection.. ...
    (microsoft.public.windows.server.sbs)