01:32:32:947 10f0 ETH: Share rejected (500 ms)!
01:32:32:947 10f0 new buf size: 0
01:32:32:963 10f0 Socket was closed remotely (by pool)
01:32:32:963 10f0 ETH: Connection lost, retry in 20 sec...
pools may not like your rejects.
I'd guess your performance is a bit too high to be stable. Try lowering your volts and your clocks a bit.
If you'll continue seeing rejects, try lowering more.
My internet connection is probably the cause of my rejects (as you can see I had 500ms on that share) but this still does not justify a PC freeze