Having trouble getting XP Network to work in Win 10 VM

Bree said:

Not really a top priority for me, I mainly use VMs for testing W7/8/10 interoperability on a mixed network. But FWIW (at least, for a W10 guest) a broadband speed test in a VM using the Default Switch gives the same results as seen on the host. Both achieved the 50 Mbps my isp claims I should be seeing.

Attachment 263975

For some months before 1909 was released I had been regularly using a VM clone of my 'daily driver' laptop (System One below) upgraded to 1909 as a test. Can't say it felt any different from using the real hardware.




No. To see the hosts drives and usbs in Hyper-V you need to connect to the VM with an Enhanced Session, and that is not available for an XP VM.

Hi there
@Bree

ISP speed isn't what I'm querying here --it's transferring data from HOST to GUEST or vice versa when the VM is on the HOST machine you are using -- so IMHO transferring data should be identical to data between local disks --even if the disks are seen on the VM as a "Network drive" when you use in the Windows VM "Map network drive".

I found a problem with all this data throughput with pretty well all VM programs I was using until my latest systems.

Possibly I hadn't got all the right settings for the "Virtual ethernet adapter" on the VM but I really was getting pushed to get data transfer > about 50-60 Mbs on things like VMWare. The ethernet (virtual) adapter should operate at HOST BUS speed for local data transfers -- no probs if one is using genuinely remote connections though

(My lan (physical) ethernet is capable of 10 Gbs so I should even via the ethernet virtual NIC be getting speeds > 50 Mbs on the local host" -- also we're in the process of having our Internet upgraded to 10 Gbs shortly -- one thing in Nordic countries -- Internet speeds make a joke of "Bull s--t Telecom etc in UK although some do have decent speeds -- KCOM for example in the most unlikely place on the planet --Kingston upon Hull seems to have very fast fibre for UK !!==> probably all those Dutch people coming off the ferries want it !!). I often go through there to get the ferries to Europoort (Rotterdam) or Zebrugge in Belgium when on Oil company gigs / Marine repair work.

Anyway I always appreciate your answers -- It's nice on these boards a lot of people do actually take time to read the posts !!! and the amount one learns even getting on in years is always worth while.

Cheers
jimbo

jimbo45 said:

ISP speed isn't what I'm querying here --it's transferring data from HOST to GUEST or vice versa when the VM is on the HOST machine you are using -- so IMHO transferring data should be identical to data between local disks --even if the disks are seen on the VM as a "Network drive" when you use in the Windows VM "Map network drive".

OK, tested that now. In an Enhanced session the host's local drive also appear as a network drive to the guest, the host's C: drive is \\tsclient\C for example. Testing copying a 2GB file from the host's C drive to the VM's C drive gets about 20MB/s, while the host can make a copy of the same file to its own drive at about 800MB/s. Host and VM are both on the same SSD.

Bree said:

OK, tested that now. In an Enhanced session the host's local drive also appear as a network drive to the guest, the host's C: drive is \\tsclient\C for example. Testing copying a 2GB file from the host's C drive to the VM's C drive gets about 20MB/s, while the host can make a copy of the same file to its own drive at about 800MB/s. Host and VM are both on the same SSD.

Hi there
@Bree

any solution to that problem

Would be interested.

On QEMU / KVM using LAN cable to Wifi extender I'm getting around 650 MBS data transfer from W10 VM to Host (and vice versa) --testing with a 4.7GB DVD ripped iso file --limitation is from the wifi extender of course ---"She who must be obeyed" !!!! won't let me have bits of hardware and cables lying all over the place anymore so I'm banished to my Shed 100 metres from the house --- It's worth it though for Sports watching. beer etc etc and definitely no supermarket / other hideous shopping trips -- that's what Amazon IMO was invented for !!!).

Cheers
and thanks for answering the question !!!

jimbo

jimbo45 said:

@Bree any solution to that problem...

Not that I know of, but it's not a significant problem for my purposes so I haven't pursued it. @Kari may be able to shed more light.

Bree said:

Not that I know of, but it's not a significant problem for my purposes so I haven't pursued it. @Kari may be able to shed more light.

Thanks

@Bree

and have a good evening

Cheers
jimbo

@jimbo I am using Hyper-v on a fairly recent CPU but just a plain Nvidia GT710 2GB and screen response is good even without the additions.iso. I tried the additions.iso but had to roll back as that caused some other problems.

Kari said:

Reading through this thread, I only have one thing to add.

When using the Hyper-V Default network switch, it puts the VM behind NAT, and its quite difficult to get networking with host to work. Networking between virtual machines using the same Default switch is OK as they will all be on same subnet, but to get networking to work between VM and host, it's better to use a normal external switch. See Part Three in this tutorial for how to create external switches: Hyper-V virtualization - Setup and Use in Windows 10

I have no issues with networking between Windows 10 host and XP guest, using a legacy network adapter (see Part Five in above mentioned tutorial) and my own external switch.

Kari

Hi there @Kari

Do you get though the sort of speeds that would be got by copying two large files on the same disk on the HOST -- it seems as if the "Bridged" (external / legacy or whatever one wants to call it) will only transfer data between VM and Host at the "Virtual Nic" speeds which typically are around 10 times slower than MOBO bus speeds.

As people have said --this may not be a problem for them -- one can't really complain at 50 -60 Mbs over a network - but it does seem something is wrong when on the same HOST Machine transferring files between a resident VM and the Host only goes at Network speeds -- there must be a way to make these transfers say at Mobo Bus speeds which would typically be at least 10X faster --probably more.. --Seems to work fine in KVM/QEMU with network adapter in Bridged Mode and using the VIRTIO network paravirtualised driver from Red Hat.

There must be some settings in the NIC surely for getting max throughput --- just seems a bit bonkers to me though.

Cheers
jimbo