ask blizzard and wait for answer. your pc is faulty to play this game. check cpu-gpu-memory sticks-hdd-ssd-case-keyboard-mouse. every other faults but not the game. the make this d3 worst every time. at any pc when change to one area to another is freeze or total crash the pc and gpu so need to restart.
it's tha game cant handle powerfull pc. ask blizzard and lough at their answers.its not pc ithe game faulty once again.
D3 has an issue with communities, being connected to just 1 community with 500+ ppl can cause severe freezes and crashes when entering new game in town and also random shorter freezes while playing grs.
The thing is completely random, some ppl dont ve any issue, but those that have em, just disconnecting from communities while rifting will fix the sudden freezes (no need to leave the comm, just disconnect)
Other than that, always have the latest drivers installed. Check your latency bar too, cos if it s goes yellow and red often, the problem may be your connection.