Check your proxy settings in windows.
Maybe you got some malware installed that has enabled a proxy (was the case in the past for other users).
And di you try the java network's ipv6 -> ipv4 switch in the troubleshooting sticky post (entry 13) already?
If Minion is not able to connect to the internet try to open a Windows CMD prompt...
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https://www.esoui.com/forums/showthread.php?t=8082
If this still does not work pleas read the sticky post about how to post a bug, include your log and xml files here and I'll have a lok if I can see anything in it.