A lot of gamers must be experiencing issues with Combat Arms. Whats new. But lets get a discussion going around it and hopefully we’ll find the right fix.
The most common error is when you try to login in, you get the error: -1.
Many used to be able to play it fine but suddenly out of the blue this glitch starts appearing.
Some recommended fixes are:
You are not connected to the server. Try resetting the router.
Sometimes its not just you but the Nexon servers are down. So it depends on how soon they can fix it and bring it up.

