PC randomly reboots and kills my home Wi-Fi at the same time

Troubleshooting Sudden PC Reboots Causing Network Disruptions: A Step-by-Step Guide

Experiencing unexpected computer reboots can be a frustrating ordeal, especially when they coincide with disruptions to your home network. If your desktop suddenly restarts at regular intervals and your Wi-Fi connection drops simultaneously, it’s essential to diagnose and resolve the underlying cause effectively. In this article, we’ll explore common reasons behind such issues and provide a comprehensive approach to troubleshoot and address them.

Understanding the Issue

Recently, users have reported their desktop PCs reboot spontaneously, approximately every 20-30 minutes, during routine tasks such as office work or web browsing. Notably, these reboots are associated with the loss of Wi-Fi connectivity across the entire network, including mobile devices, despite the router being in a different room and on a separate power outlet.

Key Observations:
– Reboot frequency: ~20-30 minutes
– Tasks: Light, non-gaming activities
– System temperatures: Normal CPU temperatures
– Event logs: Kernel-Power 41 critical error
– Thermal zone messages showing unusual values
– Disconnection of Wi-Fi router and devices during reboots
– Power outlets: Different outlets for PC and router
– Other devices on the same electrical line: No disruption

Sample System Configuration
For context, the affected system may have the following specifications:
– CPU: Intel Core i5-12400F
– Motherboard: MSI PRO H610M-E DDR4 (MS-7D48, v2.0)
– RAM: 24 GB DDR4

Potential Causes and Diagnostic Steps

1. Hardware issues:
2. Power Supply Unit (PSU) instability: An aging or faulty PSU can cause random reboots.
3. Thermal problems: Although temperatures seem normal, check for thermal throttling or sensor inaccuracies.

4. Motherboard or RAM faults: Faulty VRMs, capacitors, or RAM modules can cause system instability.

5. Software and driver issues:

6. Corrupted Windows system files

7. Driver conflicts or outdated drivers

8. External and environmental factors:

9. Electrical interference or power surges
10. Faulty power outlets or wiring

Step-by-Step Troubleshooting Guide

1. Check the Event Viewer for Clues
2. Review Windows Event Viewer logs around the times of reboots.
3. Focus on Kernel-Power 41 errors and associated ACPI