TCP is working, UDP only one way - Kryonet


I’m developing an app for android, with a server written in pure Java. When I send TCP or UDP packets from the client to the server - all are being received well.

The problem occurs on the server. When trying to send UDP packet from the srv to my connection, let’s say con1, it’s leaving the server, but never comes to the client.
When changed to con1.sendTCP - it works. What may cause this? Maybe it’s caused by this that I’m sending an array with 32 integers and it’s too big? What do you think?