Networking problem with ping

  • Thread starter Thread starter herwin
  • Start date Start date
H

herwin

I just made a network under XP with 2 computers and a
broadband router to share an ADSL connection. The
Internet sharing works fine from both computers but I
have problems in connecting the two computers for file
sharing : when I do "Search computers in workgroup" on
computer 1, it shows both. The same command on computer 2
gives an error "MSHOME is not accessible. You might not
have permission to use this network resource. Contact the
administrator of this server..."

Then I started troubleshooting with ping. From computer 1
all pings work fine : own IP address, other computer IP
address, default gateway IP address. But on computer 2 I
see the following problem :
- ping 127.0.0.1 (loopback) works OK
- ping <computer 1 IP address> works OK
- ping <own IP address> DOESN'T work !

Anyone an idea on the cause of the problem and the
solution ???

Thanks.
 
I just made a network under XP with 2 computers and a
broadband router to share an ADSL connection. The
Internet sharing works fine from both computers but I
have problems in connecting the two computers for file
sharing : when I do "Search computers in workgroup" on
computer 1, it shows both. The same command on computer 2
gives an error "MSHOME is not accessible. You might not
have permission to use this network resource. Contact the
administrator of this server..."

Then I started troubleshooting with ping. From computer 1
all pings work fine : own IP address, other computer IP
address, default gateway IP address. But on computer 2 I
see the following problem :
- ping 127.0.0.1 (loopback) works OK
- ping <computer 1 IP address> works OK
- ping <own IP address> DOESN'T work !

Anyone an idea on the cause of the problem and the
solution ???

Thanks.
Click to expand...

Herwin,

Do you have a software firewall active or ever installed on either computer?
Firewalls have a way of interfering with file sharing and pings.

Please provide ipconfig information for both computers.
Start - Run - "ipconfig /all >c:\ipconfig.txt" - Open c:\ipconfig.txt in
Notepad, copy and paste into your next post.

Also provide route information for both computers.
Start - Run - "route print >c:\route.txt" - Open c:\route.txt in Notepad, copy
and paste into your next post.

Cheers,
Chuck
Paranoia comes from experience - and is not necessarily a bad thing.
 
-----Original Message-----


Herwin,

Do you have a software firewall active or ever installed on either computer?
Firewalls have a way of interfering with file sharing and pings.

Please provide ipconfig information for both computers.
Start - Run - "ipconfig /all >c:\ipconfig.txt" - Open c:\ipconfig.txt in
Notepad, copy and paste into your next post.

Also provide route information for both computers.
Start - Run - "route print >c:\route.txt" - Open c:\route.txt in Notepad, copy
and paste into your next post.

Cheers,
Chuck
Paranoia comes from experience - and is not necessarily a bad thing.
.
Click to expand...
Chuck,

Thanks for your tip ! I have Norton Antivirus on both
computers. After further checking based on your input, I
noticed I have as well Norton Internet Security on
computer 2 (I remember I got the Norton package from my
provider, so probably Internet Security was included,
while on computer 1 I bought it myself and it has only
Antivirus included). When disabling the latter module,
everything works fine. Question remains of course : do I
really need this module ?

Thanks.

Herwin.
 
Chuck,

Thanks for your tip ! I have Norton Antivirus on both
computers. After further checking based on your input, I
noticed I have as well Norton Internet Security on
computer 2 (I remember I got the Norton package from my
provider, so probably Internet Security was included,
while on computer 1 I bought it myself and it has only
Antivirus included). When disabling the latter module,
everything works fine. Question remains of course : do I
really need this module ?

Thanks.

Herwin.
Click to expand...

Herwin,

You're protected behind a broadband (NAT?) router. Is it wired, or wireless?

With a wired router, and common sense precautions, a software firewall is less
important than with a wireless router.

With a wireless router, you need protection from the wireless environment, as
much as you need protection from the internet. IMHO. With a wireless router, I
highly recommend using a software firewall on each computer attached.

So, the question is: Is it wired, or wireless?

You may be able to get NIS to allow file sharing and pings. You need to use
static ip addresses for both computers, then on each firewall (while enabled),
you need to designate the other computer as Local (Highly Trusted) Zone. Then
you need to designate Local Zone as allowing file sharing and ICMP. For file
sharing, you may need to allow the following ports: TCP 139, 445; UDP 137, 138,
445.

Cheers,
Chuck
Paranoia comes from experience - and is not necessarily a bad thing.
 
Back
Top