Random High Ping Spikes

Hi Welcome to Microsoft community. It sounds like you've already gone through a number of troubleshooting steps to resolve your high ping spikes issue. Since the problem appears to be isolated to your PC, there are a few more things you can check to potentially identify and resolve the issue:

1. Update Network DriversEnsure that your network drivers are up-to-date.
2. Open Device Manager by right-clicking the Start button and selecting "Device Manager."
3. Expand "Network adapters," right-click your network adapter, and select "Update driver."
4. Choose "Search automatically for updated driver software."
5. Disable Background Applications Some background applications can cause high ping spikes by using a significant amount of network bandwidth.
6. Open Task Manager by pressing Ctrl + Shift + Esc.
7. Go to the "Startup" tab and disable unnecessary startup programs.
8. Check the "Processes" tab to see if any applications are using excessive network resources and close them if necessary.
9. Check for Malware Malware can cause network issues, including high ping spikes.
10. Run a full system scan with Windows Defender or another reputable antivirus software.
11. Adjust Power SettingsSometimes power settings can affect network performance.
12. Open Control Panel and go to "Hardware and Sound" > "Power Options."
13. Select "High performance" as your power plan.
14. Disable Network Throttling IndexWindows sometimes throttles network performance to prioritize other tasks.
15. Press Win + R to open the Run dialog, type regedit, and press Enter.
16. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile.
17. In the right pane, double-click on NetworkThrottlingIndex.
18. Set the value to FFFFFFFF (8 Fs) and click OK.
19. Restart your computer.
20. Use Ethernet Connection If you're using Wi-Fi, try using an Ethernet connection to see if it resolves the issue.
21. Check Router Settings Ensure that your router is properly configured and that QoS (Quality of Service) settings are not limiting your PC's bandwidth.
22. Disable Large Send Offload (LSO)Disabling LSO can sometimes resolve high ping issues.
23. Open Device Manager and expand "Network adapters."
24. Right-click your network adapter and select "Properties."
25. Go to the "Advanced" tab.
26. Select "Large Send Offload V2 (IPv4)" and set it to "Disabled."
27. Select "Large Send Offload V2 (IPv6)" and set it to "Disabled."
28. Click OK and restart your computer.
29. Contact ISP If none of the above steps work, there might be an issue with your ISP's routing to your specific PC. Contact your ISP for further assistance. By following these steps, you should be able to identify and resolve the high ping spikes on your PC. If the problem persists, it might be worth checking for any hardware issues with your network adapter or considering a professional diagnostic.Let me know if you need further assistance.Best regardsDerrick Qian | Microsoft Community Support Specialist