What does this error on the Serial Monitor mean?

Projects Networking, Protocols, and Devices
1

The sketch uploads and runs fine but I get this. Im wondering if it has anything to do with the fact the laptop falls asleep because it doesnt seem to have anything to do with the code itself:

java.net.SocketException: Can't assign requested address
at java.net.PlainDatagramSocketImpl.join(Native Method)
at java.net.AbstractPlainDatagramSocketImpl.join(AbstractPlainDatagramSocketImpl.java:178)
at java.net.MulticastSocket.joinGroup(MulticastSocket.java:323)
at javax.jmdns.impl.JmDNSImpl.openMulticastSocket(JmDNSImpl.java:463)
at javax.jmdns.impl.JmDNSImpl.(JmDNSImpl.java:420)
at javax.jmdns.JmDNS.create(JmDNS.java:81)
at cc.arduino.packages.discoverers.NetworkDiscovery.inetAddressAdded(NetworkDiscovery.java:211)
at cc.arduino.packages.discoverers.network.NetworkChecker.run(NetworkChecker.java:67)
at java.util.TimerThread.mainLoop(Timer.java:555)
at java.util.TimerThread.run(Timer.java:505)

2

It's something to do with the Arduino IDE code or Java or network settings, etc. It's not related to your sketch code. If you're not running the latest version of the Arduino IDE try updating.

3

I would try a different serial terminal, like Putty - and see what type of errors a different software gives you.