Hmm,
Are you sure you are opening non-official or black belt + servers?
You are 2nd dan, you do know you can't join Beginner servers.
Try some non-official servers. If it does not work, it's firewall blocking your toribash.
Try:
Step1: Click Start
Step2: Control Panel
Step2: Windowns Firewall
Step4: Click on disable
Or just allow firewall to let toribash do it's thing.