MSFS kills my entire LAN

[NiKoTin3420]

first thing that come to my mind is :

Keeping a system fit - avoiding "glitchy" behavior

Well, I will share my biggest issue and its fix here. Once my CPU was heavy loaded I was experiencing massive packet loss, random crashes/ PC shuting down, issues may goes up to the router desynchronizing it and loosing internet. However, I discovered that the main cause was the excessive interference generated by my CPU and motherboard on the LAN port due to unstable electric flow… That is my understanding, maybe my home’s electric installation being old doesn’t help. Anyway I managed to reso…

then BegottenPoet228 replied

This is partly true. A simple (i.e. cheap) UPS will switch to battery power in case of an AC power loss.
You want to look for a UPS that also provides AC sine wave regulation - sometimes called AVR (Automatic Voltage Regulation.) Not all have that feature, and is generally only found in more expensive units.

It’s true that the computer power supply regulates voltage to the motherboard and other components, and the motherboard itself has a voltage VRM (Voltage Regulator Module) but if you feed it quality sine wave AC power with a good UPS it certainly it reduces jitter and other power supply anomalies that can affect system stability.

I suspect many CTD’s are caused by house wiring voltage fluctuations (without an AVR UPS to smooth them out.) But also having a cheap power supply, and motherboard without a quality VRM is a recipe for instability.

I don’t have a really expensive motherboard (MSI B550-A Pro) but I chose it because it has a beefy VRM. I spent some extra money on a good 850W power supply. And I have a 1200W UPS with sine wave AVR.

I have never had a CTD.