Lesson learned from last week Master Class, internet access is the hardest part. That being venue, customer or training location. I think venue/hotel is the worst. The problem in Orlando was free WiFi without any password, and a green button to click on to accept terms etc. Therefore the TP-link wouldn't work in Client mode, though just tested here at home and works perfectly. Another problem because of that was DNS resolution from the XenServer hosts itself to NTP, which made use all troubleshoot together, because VDA's wasn't registering correctly with the XDC. Now I do you NTP IP 129.6.15.28/29/30 (seems hotel wifi block dns, but to direct to IP)