Hi Jan! OK, so I did a trace and I can see that my client gets a dns answer with all the right IPs in it. I can expand the query and answer in wireshark and everything is there. Nevertheless it tries to start a new query via DNS-TCP. Not sure if this is some odd windows behavior or if this is the way it’s supposed to be.
I recreated my dns_tcp loadbalancer and now it works. I guess I had an error in my dns_tcp content switch config the first time I tried it.
Anyhow, thank you very much! :)