6.3 version problem with S7 TCPIP

Hi all! 

I am using the latest reavirtual. However, I am having problems with S7 TCPIP because the component displays "waiting to connect" and other error messages, and communication with S7-1200/1500 does not work, although it works with version 6.0.3. What could be the problem and what could be the solution? Thank you in advance for your hel