Details:
java.nio.channels.UnresolvedAddressException
Do you have that error on all the first requests of your script or on a specific one?
Do you use a FQDN server or an IP addresses for that request?
It sounds to be a DNS issue. You say that it works fine with older NeoLoad version?
Now,its working fine. Installed 5.3.1 neoload certificate in browser ad its working fine.
