like go558a83nk said, use TCP instead. It is likely from your ISP or the network you are using blocked UDP from being used. If you are using university or public wifi, they tend to disable UDP. I'm guessing you disabled the automatic protocol option (the default is on for automatic) because it would move to the next protocol/ports in the list if it it failed to connect. In Eddie, go to Setting>Protocols then tick automatic. Then it will automatic go through the list until one of them managed to connect. Or if you prefer to control the protocol yourself, then select any TCP.
In my case, My university blocked all UDP and blocked 443. It went through the list until TCP 80 and finally connected.