Tricksy connection issues on local network

I am able to connect to the Bukkit server running on my own computer, but others on the same network are not.

My current setup:

I am running Craftbukkit1.2.3-R0.2 (#2060) with a newly downloaded minecraftserver.exe with no plugins currently.
I have altered no config files.
I am launching it with a .bat file that runs the command:
Echo off
"c:\Program Files\Java\jre7\bin\java.exe" -Xmx1024M -XX: ParallelGCThreads=2 -Xincgc -jar craftbukkit-1.2.3-R0.2.jar (Space inserted in the -XX: P so it doesn't turn into a smiley.)
pause
I'm running Windows 7

What happens:

On my server list I see the server normally and can connect via my local network IP or localhost.
Others on the network do not see the server up via the server list, nor can they connect using the direct connect and the IP address.
When attempting to connect via direct connect, they get a connection timed out message.
I see nothing on the console window on any attempt they make to connect. When I connect, it does show a message reporting the connection on the console window.

What I have done so far:

I have verified the IP address multiple times by first checking my IP on the computer the server is on using cmd -> ipconfig.
If I run the minecraftserver.exe alone without bukkit, the server shows properly on the server list of other computers on the server. They are able to connect as normal, using either the server list or the direct connect option.
I have tried downloading and running a fresh .jar and a new minecraftserver.exe. I have run the server with no plugins.


The issues has existed with earlier versions of bukkit, I'm just finally getting around to trying to fix it. What's the next steps I should take to try to fix this issue?

 

What's that?

 

The latest beta build of bukkit as of last Sunday, and the minecraft server executable downloaded from Minecraft.net. To add a bit of clarity, I am not running them at the same time, I only launch bukkit via a batch file with the command I posted earlier.

 

I am having this same problem. Vanilla minecraft server working great, both on localhost and all internal LAN computers. After installing craftbukkit, it works fine on localhost, but other LAN computers "can't reach server".

I rolled back craftbukkit, and again everything working great with vanilla minecraft server, all LAN computers can connect. Back to bukkit, server again is not visible from other LAN computers, nor does direct connect work.

Any thoughts?

I tried server-ip with the actual IP and also blank, and also tried online-mode=false (not doing any port forwarding yet), no success with craftbukkit. I am on the latest bukkit, just downloaded yesterday, minecraft 1.2.5, windows 7.

Any advice or hints greatly appreciated.

 

Your local firewall is blocking java but allowing the vanilal minecraft server. Add java.exe to your firewall

 

just a heads up ur run.bat code is a bit off and with fk up nex bukkit update
if you are 32 bit use this:
Echo OFF
SET BINDIR=%~dp0
CD /D "%BINDIR%"
"%ProgramFiles%\Java\jre6\bin\java.exe" -Xmx1024M -Xms1024M -jar craftbukkit.jar
PAUSE

if you are 64 bit use this
Echo OFF
SET BINDIR=%~dp0
CD /D "%BINDIR%"
"%ProgramFiles%\Java\jre7\bin\java.exe" -Xmx1024M -Xms1024M -jar craftbukkit.jar
PAUSE