http://www.mvps.org/vbnet/code/network/internetgetconnectedstate.htm

--

Randy Birch, MVP Visual Basic

http://www.mvps.org/vbnet/
http://www.mvps.org/ccrp/

| How do I check to see if I am still connected to our LAN?  I have a VB app
| that needs to run in "local mode" if it gets disconnected.  In testing, I
| have tried several things but they take too long to come back as failed.
| (I am actually unplugging my network line from my PC to simulate this
| event.)  This needs to happen in less than a second.  Thanks in advance
for
| your help.
|

<How do I check to see if I am still connected to our LAN?

<Does this code help  ?
<
<http://www.mvps.org/vbnet/code/network/internetgetconnectedstate.htm

This might be more appropriate.  However, I haven't tried it so I
don't know if a disconnected  state will be indicated faster than
by using Dir() to check for a known  directory on a known machine
on the LAN.

  http://www.mvps.org/vbnet/code/network/ping.htm

--
Paul Marshall

--

Randy Birch, MVP Visual Basic

http://www.mvps.org/vbnet/
http://www.mvps.org/ccrp/

| On Thu, 04 Nov 1999 11:18:13 -0800, "Cathy smith"

|
| <How do I check to see if I am still connected to our LAN?
|

|
| <Does this code help  ?
| <
| <http://www.mvps.org/vbnet/code/network/internetgetconnectedstate.htm
|
| This might be more appropriate.  However, I haven't tried it so I
| don't know if a disconnected  state will be indicated faster than
| by using Dir() to check for a known  directory on a known machine
| on the LAN.
|
|   http://www.mvps.org/vbnet/code/network/ping.htm
|
| --
| Paul Marshall

<I would suspect that it might be. Would not attempting to Dir() against a
<known directory produce the same delay as attempting to access a
<disconnected share in explorer?

Since I had not tried it before,  I didn't know how quickly
the 'ping'  code would  report failure.   Having now tested
it, I see that it reports  failure here in about 0.2 to 0.7
seconds.  The Dir() call can take from about 2.5 seconds up
to about *70* seconds (in the case where the  directory had
previously been accessed and is now unavailable) to fail.

--
Paul Marshall