Thanks, but i am not going to make exceptions to our firewall. (I'd rather wait until your server gets de-listed) We are still able to use the software on a laptop connected to our guest-wifi that breaks out through a seperate internet-connection. @peter and @alain: changing versions are probably not the "culprit"; I guess there might also be some firewall blocking above IP-address in your enviroment. It could be coincedence.
Same over here; our firewall throws a blocking event for IP and port 184.108.40.206:443 causing the same behaviour as you describe. Same IP is listed on this website: https://threatfox.abuse.ch/ioc/259582/ May be a listing that needs to be disputed, @remoteutilities?