This thread was automatically locked due to age.
Do you use DPI Engine?
Because i guess, i figured out, what World of warcraft is doing.
Before the initial logging request is started, it seems to connect to a IPaddress.

After adding this IP to the local exclusion list, its working with the exceptions, you are using.
Looking into Central Firewall reporting, using Intercept X on the endpoint, you can see, this requests are caused by blizzard:

Hello,
Are you currently on v17.5 or v18 ?
If you're still on 17.5, I suggest you to upgrade to v18 MR4 and use the new DPI Engine instead of the Web Proxy.
Thanks!
If a post solves your question use the 'Verify Answer' button.
XG 115w Rev.3 8GB RAM v19.5 MR1 @ Home.
Hello,
Are you currently on v17.5 or v18 ?
If you're still on 17.5, I suggest you to upgrade to v18 MR4 and use the new DPI Engine instead of the Web Proxy.
Thanks!
If a post solves your question use the 'Verify Answer' button.
XG 115w Rev.3 8GB RAM v19.5 MR1 @ Home.