Cannot join server on local ip (192.168.x.x) when using port 25567

When I try to connect to the server on port 25567, only the servers outside ip adress seem to work (using FQDN, home.servername.com:25567). When adding the server on the LAN ip adress (192.168.1.x), the client says "Pinging..." (picture #1) until it times out with a wrong version error, showing version number in red - se picture #2.

The attached pictures are showing the same Minecraft server - on top added on the outside ip address, the bottom one configured with LAN ip.

When using port 25566 or 25565 I have no problems at all.

This does not apply for the Minecraft 1.6.4 version on port 25567. Both connections shows up the right way when changing to version 1.6.4.

Has been confirmed to work this way with firewall off on both server and client.