OS X Internet Sharing dont login google

[FU2001]

hello... it´s very simple to share the internet connection (wlan-as-ipclient) over Ethernet Lan to next router to share it again to many wlan clients. Under Mavericks on my MBP it works great and fast. Now i changed hdd with an ssd, and installs High Sierra on it. All works fine at the first look... but =>=>=> i try to connect on my google account on iphone with or in a game, but nothing... internet works... i tested many android devices , different iphones... nothing. Over 4hrs. then i take my hdd into an usb case and boot into mavericks... connect to wlan hotspot, and damn, google login directly on all devices i try to tested-.... whats the differnece between the two op.systems? i look all settings, compare many files about settings, not 100% the same, but no big changes i can find... firewall on off, no change on high sierra.... hope anyone can give me a pro tip to solved the problem!