RUST freezing then crashing after 10 20 min of gameplay

[munchiesOG]

my game crashes after 10 20 min of gameplay it frez then says not responding then crashes

[Dougems]

I've seen freezes/lockups rarely in the past, but since the 5 May 2016 update it happens every time I join the server I've been playing on for over a month now.

It's a total freeze, screen is locked. Mouse cursor is visible but doesn't move. ESC, CTRL-ALT-DEL, ALT-TAB, nothing works except a hard reset of the machine.

Lockup seems to happen within the first 10 minutes of joining. It happens whether I'm running around or just standing idle.

Saw the issue on both Win7 Ultimate and Win 10.

Things I've tried that have NOT worked:

1. Verify game cache (was OK)
2. Re-install anyway
3. Run with DX9
4. Run at "Fastest" graphics setting on both DX9 & DX11
5. Update NVIDIA drivers (currently using 365.10)
6. Disable Steam overlay
7. Also ran in window with HWMonitor visible so I could keep an eye on temps. Never went out of spec for CPU or vid card. Lockup happened.

Machine specs:

Windows 10 Pro 64-bit
Intel Core i5 760 @ 2.80GHz 42 °C
Lynnfield 45nm Technology
12.0GB Dual-Channel DDR3 @ 666MHz (9-9-9-24)
Gigabyte Technology Co. Ltd. P55A-UD3 (Socket 1156) 33 °C
PX2710MW (1920x1080@60Hz)
4095MB NVIDIA GeForce GTX 960 (EVGA) 34 °C

Saw one log entry, but was "Information" only. I think my system is so locked up nothing can be logged anyway.

Fault bucket 129050578365, type 5
Event Name: RADAR_PRE_LEAK_64
Response: Not available
Cab Id: 0

Problem signature:
P1: RustClient.exe
P2: 5.3.4.47953
P3: 10.0.10586.2.0.0
P4:
P5:
P6:
P7:
P8:
P9:
P10:

Attached files:
C:/Users/xxx/AppData/Local/Temp/RDRF42F.tmp/empty.txt
C:\Users\xxx\AppData\Local\Temp\WERF430.tmp.WERInternalMetadata.xml