How to play Online

This guide describes the two most popular methods to play this game online, check below on how to play each one.

Thanks Legionnaire and John Megacycle for contributing to this page


– C&C:ONLINE WITH REVORA CREATIVE NETWORK

To play online using Revora you simply have to download and install gentool in your game, and create an account in cnc-online.net. After that, you just open your game and login in the Multiplayer > Online menu in-game using the credentials in your cnc-online account.

FIXING ERRORS AND & CONNECTION PROBLEMS WITH CNC:ONLINE

I get «Unable to connect to other players» error!

This is likely caused by a strict NAT or Firewall in your network. To fix this you can try port-forwarding or using a VPN, try to port forward first, if it doesn’t work, then try using a VPN. Check guides below.

Port Forwarding Guide for C&C:ONLINE

In contrary to popular beliefs, you do not need to port-forward ANY of the following ports:

If you have port forwarded any of these ports undo it now, some ports, specially port 80, are dangerous to port forward.

The only UDP port you need to forward is the one you set here, in the options menu:

You can use any port you want, as long as it’s not already being used by another device or application in your network. I personally use 27901.

How to port-forward

We now need to forward the port we just set in the options menu.

It is very easy to port forward using a UPnP port-mapping tool, you can download a popular one here, you need java to run it. Don’t worry, I’ve been using it for a very long time and it’s virus free.

You can also use your router’s control panel to port-forward, check tutorials online for your router model as it is slightly different for each router.

After downloading the app, open it and click “Connect”, give it a minute, if it worked you will be able to see your External Address and Internal Address and that the connect button now changed to “Disconnect”. If it didn’t work and you received a message saying ‘cannot find router’ try this OR click “PortMapper Settings…” and select a different UPnP library from the first 3 available in the drop-down menu (not the “dummy” one!) then try to connect again (If none of the 3 libraries worked, it means that you can’t port forward using this method and will have to port forward in your router’s control panel, check tutorials online for your router model as it is slightly different for each router).

After successfully connecting click “Create”, enter any description you want, and make sure “Use local host” is ticked, then click “Add”, double click TCP and change to UDP and then set the External Port and Internal Port to the port you set in the game options menu, in my case it would be 27901. This is how it should look like:

Click “Save”, your preset should now be under “Port mapping presets”, select it and click “Use” the program should freeze for a few seconds, after that you should see in the “Log messages” that the port mapping was successful, your connection problem should now be fixed.

I get «Could not connect to C&C Generals Zero Hour Online» error!

Check your options menu and make sure “Online IP” is set to your local IP. Local IP’s usually start with 192.168.x.x. If this doesn’t work it is likely that your ISP has blocked ports that are needed to play on C&C:Online, you can use a VPN to fix this. Check guide below.

We are going to use Windscribe, download the app and create an account, after that, open the app and click the power button to turn the VPN ON. That’s it! Make sure you are using the VPN’s local IP and not your local IP in “Online IP:” in the game’s option menu. If you are not sure, just restart Zero Hour while windscribe is enabled and it will automatically set the IP to the VPN one.

Windscribe has a limited data plan per month, make sure to disable it while not playing Zero Hour.

I get «Failed to join – the game is a different version» error!

Make sure you’re running Zero Hour on version 1.04 and have no mods installed. If that doesn’t work, it is likely your game is running a cracked binary. To fix this, you must have gentool installed, after exiting the game, gentool will open an update window, press enter through the steps and let it patch your game.

I get «Your serial is already in use» error!


– GAMERANGER

To play using gameranger, you must create an account and download it, then follow additional instructions.

Sometimes you will get a disconnection menu right after a game loads. This is normal, it happens when you can connect to the host but can’t connect to others on the lobby. Just wait it out, don’t quit!

Tip: You can display only the games you own if you change this option:

FIXING ERRORS AND & CONNECTION PROBLEMS WITH GAMERANGER

In GameRanger, when players in a lobby have an italic username, it means that you have a connection problem with that player, and you will likely be unable to connect to him. But you don’t always need to, because with GameRanger, the lobby only needs to connect to the host. Find a player in your group that is not italic and let him host.

If you are the host of a lobby, make sure no other player in your lobby has an italic name.

Port Forwarding or using a VPN can reduce the amount of connections problems you run into. Check guides below.

Port Forwarding Guide for GameRanger

In contrary to popular beliefs, you do not need to port-forward ANY of the following ports:

If you have port forwarded any of these ports undo it now, some ports, specially port 80, are dangerous to port forward.

The only port you need to forward for GameRanger is 16000 UDP.

How to port-forward

It is very easy to port forward using a UPnP port-mapping tool, you can download a popular one here, you need java to run it. Don’t worry, I’ve been using it for a very long time and it’s virus free.

You can also use your router’s control panel to port-forward, check tutorials online for your router model as it is slightly different for each router.

After downloading the app, open it and click “Connect”, give it a minute, if it worked you will be able to see your External Address and Internal Address and that the connect button now changed to “Disconnect”. If it didn’t work and you received a message saying ‘cannot find router’ try this OR click “PortMapper Settings…” and select a different UPnP library from the first 3 available in the drop-down menu (not the “dummy” one!) then try to connect again (If none of the 3 libraries worked, it means that you can’t port forward using this method and will have to port forward in your router’s control panel, check tutorials online for your router model as it is slightly different for each router).

After successfully connecting click “Create”, enter any description you want, and make sure “Use local host” is ticked, then click “Add”, double click TCP and change to UDP and then set the External Port and Internal Port to 16000. This is how it should look like:

Click “Save”, your preset should now be under “Port mapping presets”, select it and click “Use” the program should freeze for a few seconds, after that you should see in the “Log messages” that the port mapping was successful.

We are going to use Windscribe, download the app and create an account, after that, open the app and click the power button to turn the VPN ON. That’s it!

Windscribe has a limited data plan per month, make sure to disable it while not playing Zero Hour.


For Questions & Feedback

Contact: [email protected]

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