You're experiencing a common limitation in Minecraft Classic, which makes it harder to connect to your own server. Here's some relevant information copied from the fCraft Wiki):
No one can connect to my server / "Unable to reach server"
- If your server does not have direct internet access (e.g. if it is connected through a router), you will need to forward the port to allow external players to connect. Default port is 25565. ConfigGUI includes a little tool for checking whether the port is forwarded properly - click the "Check" button next to port number setting, on "General" tab. Of course, the only way to be sure that port is forwarded properly is to ask someone remote to try joining your server.
- If you have a firewall or an "internet security" suite of some sort, make sure that fCraft is granted the appropriate permissions. If your server is still not connectible, try disabling the firewall.
I cannot connect to my own server (from the same PC)
To join a server that's hosted on the same machine, you have two options:
- Add ?override=true parameter to the server URL:
- Connect to your server directly, by IP/port:
Other players cannot connect from LAN
Minecraft client has a lot of trouble working on LAN. You probably will not be able to connect via the public URL. Fortunately, there is a workaround:
- Enable "Allow connections from LAN without verification" checkbox in ConfigGUI's "Security" tab (or set AllowUnverifiedLAN to "true" in config.xml).
- Find your local IP address. Go to Start -> type "cmd" to open a terminal -> type ipconfig. The address you need is labeled "IPv4 Address" under "Local Area Connection".
- Instead of the usual server URL, connect directly to
I hope this fixes your issue! If not, reply here or stop by our IRC channel (#fCraft on EsperNet).