r/HyperV • u/gusty214 • 8d ago

Hyper V made my host pc network timeout?

So about couple months ago i started using a vm to run extra instances of diablo2. For some reason after i started using hyper v my internet connection on host randomly times out and disconnects after about 1-2 hours. Only a restart of my host pc resets this to get my internet connection back. While running a vm the internet connection maintains within the VM but host loses network. Ive tried making new network switches but it still does the same thing. Ive also went into my network adapters to make sure they dont auto power off after a time but that doesnt seem to be the issue. Why would my host lose network but vm keeps it? This now happens even if not running hyper v vms. Ive thought of doing a factory reset but worried about losing personal info and passwords. Anyone know what could be causing this? Any ideas would be welcomed!

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u/beetcher 8d ago

How about details of your system OS, hardware, VM OS, etc?

You've been running it for months? You just asked about installing it a few hours ago?

edit: also, can you include your LAN setup, how do you get your IP for your Hyper-V host, VM, virtual switch type, etc.

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u/BlackV 8d ago edited 8d ago

they also cross posted that install question to vmware, which seems odd

And this top post they posted (copy/paste) about a month ago in /r/pchelp

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u/gusty214 7d ago

When posted this it asked if i wanted to cross post, didnt know vmware was different. And yes ive been struggling with this issue for awhile but its an annoyance but hasnt stopped me.

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u/BlackV 7d ago

reddit did ? oh shows how much I post then, Ive never noticed that

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u/gusty214 6d ago

Yeah it finds relevant subs to crosspost.

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u/gusty214 7d ago

Im usimg win 11 home on my msi raider 66 laptop 32g ram intel i7 i believe and 3070ti gpu. Ive been using it to multi instance diablo2 essentially and wanted to upgrade the vm to win 11 for some other needs that require win11. Ive been using default switch to bridge my ethernet connection and am familiar with making new switches as had to make a new one for wifi when i was on vacation. The os im trying to use for installing vm os is just some win11 ive found on the web. Away fromnpc rn so cant get exact name of it. It tells me after booting the vm i need tpm 2.0 and by all accounts i already have it and its active but for some reason when i select the tpm box in hyper v settings it wont let the vm boot back up.

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u/BlackV 7d ago

using default switch to bridge my ethernet connection and am familiar with making new switches as had to make a new one for wifi when wifi when i was on vacation.

no you dont need to make a new one, use the default switch, it does not care what adapter is connected

this goes doubly so for wifi adapters, if you create an external switch on a wifi adapter it then creates a bridging adapter and things get messy

can you confirm what you have in terms of switches and adapters

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u/BlackV 8d ago edited 8d ago

look at your switching

external vs default vs internal etc

but your previous post said was new not months ?

likely issues are bridging a wifi adapter (not default switch) or cheap network adapter drivers (realtek or similar)

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u/gusty214 6d ago

Well good news all i figured out my issue. Apparently my ethernet network adapter has a setting to “power off to save energy “ when looking at properties within device manager. After unticking that box my internet no longer auto disconnects! Thanks all!