After setting up VPN, pfsense laptop seems to stop working

[rcmpayne]

So I set up PIA openVPN on the pfsense laptop and set an alias group so one PC is routed through the VPN. It's working great but after an hour or so the Internet in the house dies for everyone. And I can no longer connect to pfsense via GUI or telnet. A reboot seems to fix the issue. Why would the temp be going crazy suddenly?  after restart the temp shows 53.0°C

Jun 1 07:27:41	syslogd		kernel boot file is /boot/kernel/kernel
Jun 1 06:01:49	syslogd		exiting on signal 15
Jun 1 06:01:49	kernel		acpi_tz0: WARNING - current temperature (128.0C) exceeds safe limits
Jun 1 06:01:40	root		WARNING: system temperature too high, shutting down soon!
Jun 1 06:00:18	php		[pfBlockerNG] Starting cron process.

Laptop:
Lenovo T510 Core i7
8GB RAM