can ping but not connect PC's

  • Thread starter Thread starter Kevin
  • Start date Start date
K

Kevin

I have three PC's networked through a wired Microsoft 4 port router
(MN-100). We're accessing Bellsouth DSL through an Alcatel Speed Touch
Home modem. IP is DHCP. The router is handling the PPPoE. All three PC's
can access the internet with no problems. All three of them can also
ping one another. All three can see each other on the network. All three
have authorized sharing of their local drive C. The problem I'm having
is that PC 1 and 2 can share files with each other, but they can't
access PC 3. Yet PC 3 can access files on PC 1 and 2. PC 1 is using XP
Pro, 2 and 3 are using XP Home. I've made sure that the internet
connection firewall is turned off on all three. And we're not using ICS.
All the normal services and protocols are installed, Client for MS
Networks, File and Printer Sharing, and QoS Packet Scheduler. All three
have the first 3 octets the same 192.168.2.X All have the same subnet
mask 255.255.255.0 I've made sure the spelling of the workgroup is the
same. The only thing else I can add is that PC 3, the one that 1&2 can't
access, is the host computer.
 
Kevin said:
I have three PC's networked through a wired Microsoft 4 port router
(MN-100). We're accessing Bellsouth DSL through an Alcatel Speed Touch
Home modem. IP is DHCP. The router is handling the PPPoE. All three PC's
can access the internet with no problems. All three of them can also
ping one another. All three can see each other on the network. All three
have authorized sharing of their local drive C. The problem I'm having
is that PC 1 and 2 can share files with each other, but they can't
access PC 3. Yet PC 3 can access files on PC 1 and 2. PC 1 is using XP
Pro, 2 and 3 are using XP Home. I've made sure that the internet
connection firewall is turned off on all three. And we're not using ICS.
All the normal services and protocols are installed, Client for MS
Networks, File and Printer Sharing, and QoS Packet Scheduler. All three
have the first 3 octets the same 192.168.2.X All have the same subnet
mask 255.255.255.0 I've made sure the spelling of the workgroup is the
same. The only thing else I can add is that PC 3, the one that 1&2 can't
access, is the host computer.
Click to expand...


Nothing like fixing your own problem.

It was a registry setting. The IRPStackSize value was set to 11, which
is fine for Win NT 4.0, but the correct setting is 15 for Win XP.

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Parame
ters

Also the value data for......
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Parame
ters\NullSessionPipes needed adjusting.

The default information stored in this value is:


COMNAP
COMNODE
SQL\QUERY
SPOOLSS
LLSRPC
EPMAPPER
LOCATOR

If there are more than 32 KB in that entry, the Server service will fail
to start and return the error More data is available, or Not enough
storage is available.

The solution is to remove any unnecessary entries from the
NullSessionPipes value.

I also found this to impact my ability to connect. The value of
"MemoryManagement" should be 0 <zero>.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session
Manager\Memory Management

Now all of my Network Places on the LAN connect fine.
 
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