Always having to reset the Hyper-V Virtual Ethernet Adapter
quad nic system (but using 1 nic) - static ip , virtual ethernet (for hyper-v environment)
client has comcast internet (deluxe plan 50mbps down / 10mbps up)
i have anywhere 17-22 users internally using internet work. i have 3-4 remote users connected via persistent vpn day (doing rdp remote computer (they hyper-v system)).
on given day, internet drop it's connection anywhere 10-60 seconds , come life. i know because i'm monitoring connection every 5 seconds , i'll alerts if goes down.
this causing issues remote users. they disconnected , unable reconnect. thus far, have 2 band-aid solutions i've been using: have remote users restart router , reconnect (this works 80% of time, that's hassle).
my other "fix" on 2012 server. and have reset of nic cards (disable/enable).
when @ network connections, see 5 nic cards: nic1, 2, 3, 4, , vethernet (new virtual switch).
nic1 main nic static ip.
nic2 says enabled used virtual environment.
nic3 , 4 (network cable unplugged , don't use nics).
then have vethernet (new virtual switch)
i go in , disable nic2 , vethernet. then re-enable nic2 , vethernet (in order too).
then remote users can reconnect.
why that? can use nic3 or 4 fail-over possibly? if so, how? i've experimented (drop connection 10-20 seconds) , try rdp virtual machine (which unsuccessful). once disable/enable nic cards, works. why 10-60 second outage cause this? and happens daily. sometimes 2x's day.
comcast claims because of intenet speeds have - we're maxed out (and upload speed can't handle 3-4 remote users , overhead vpn) telling me upgrade speeds around 100mbps 150mbps down / 20 up. that solve problem, i'd find root cause before upgrading entire internet client (unless speed issue bottleneck root cause).
any thoughts on this? thanks in advance replies.
hi steve,
what hardware you running hyper-v on? chance nics broadcom network adapters? have tried disabling vm queuing already?
there's been bug broadcom network adapters , windows server 2012 last few years causes virtual machine queuing (vmq) in hyper-v to slow down or drop connection or virtual machines. disabling and re-enabling nic temporarily fixes the problem, but keeps occuring @ random moments.
it possible broadcom has released update fix issue, try install latest adapter driver , firmware first, known workaround disable vmq on affected network adapters using following option:
good luck!
kind regards,
robin
Windows Server > Hyper-V
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