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VirtualBox windows guest Slow download speed from LAN and internet

Posted: 11 Nov 2024, 13:16
by clonea1
sorted out my disk performance issues by switching off from sata controller to a SAS controller. however now i go down the further testing, and im seeing that the download speed from the guests perspective to the internet or to the nas / lan resources i almost nothing, upload speed appears un effected.

I have tried both intel adaptors, i am in a bridged configuration as the guest will need a proper internet connection with port forwarding rules etc...
i have also with paravirtualzation in acceleration to none and hyperv, this did not make a impact
f6-424 max - 64GB, 6x18TB WD Pro
TOP 6.0.531-00150



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Re: VirtualBox windows guest Slow download speed from LAN and internet

Posted: 11 Nov 2024, 13:19
by clonea1
also windows will also just give up and declare there is no internet connection, and the gateway as well as the nas will no longer responded to ping despite a IP present in ipconfig

Re: VirtualBox windows guest Slow download speed from LAN and internet

Posted: 11 Nov 2024, 13:57
by clonea1
iperf between the nas and the guess, upload to the nas is the expected speed. download is almost nothing


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Re: VirtualBox windows guest Slow download speed from LAN and internet

Posted: 11 Nov 2024, 22:42
by clonea1
if i switch out of bridge mode into nat mode my iperf performance improves, however a nated space for the guests is not a workable soultion as i need these guests to not be isolated and to be on the same network as my other resources

Re: VirtualBox windows guest Slow download speed from LAN and internet

Posted: 11 Nov 2024, 23:00
by clonea1
if i switch out of bridge mode into nat mode my iperf performance improves, however a nated space for the guests is not a workable solution as i need these guests to not be isolated and to be on the same network as my other resources

Re: VirtualBox windows guest Slow download speed from LAN and internet

Posted: 12 Nov 2024, 10:40
by clonea1
found a work around, downloaded the iso for para virtual and switched the nic back to bridged but with the para virto network. installed the driver and that is yielding proper performance V the intel not hardly working

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i hope my testing is not going into a echo chamber and someone is reading and trying to repo/bug etc...

Re: VirtualBox windows guest Slow download speed from LAN and internet

Posted: 12 Nov 2024, 10:42
by clonea1