@GHW I fixed it. I had to do a complete network reset on the physical host itself. You pointed out the management interface which got my looking and determining something broke, so thank you.

@GHW I know DHCP is providing all the information for the network cuz my XOA and VMs are all getting internet from DHCP just fine.

Internally, the host and XOA are on the same subnet. But I seem to be having an issue where the host cannot reach the internet. I can SSH into it and ping IP addresses internally but cannot ping to google or any other place on the net from the host

After about a month of having XCP-NG and XEN-O, I can no longer see my virtual machine consoles. I can remote into them, restart them and everything, but they no longer show a display in XEN-O, why?

Should I still just get a different NIC card?

Nevermind I ran it again and it now shows 100MBytes

I just did an iperf test to the server being hosted and even with the 2 broadcom NICs bonded, im getting 1MB transfer rate. Should I change the NIC type to e1000 or does that not matter? Should I just get an intel NIC?

@olivierlambert So I moved the quickbooks data files to my computer and hosted them and everything is working without any issues. My server has a Broadcom BCM7520 NIC in it. Could it be an issue with Broadcom NICs that could be causing this issue?

Yes. I ran tests and everything seems perfectly fine until using quickbooks. Still having issues with Windows Server even. We are running some more scenarios to try to pin point the exact cause of the issue. Everything seems to run normal besides quickbooks. I wouldnt figure the network adapters would have anything to do with it if everything else seems to run fine.

Well I just carved out a new server with Windows 2012 R2 on it to test running quickbooks to see if its maybe windows 10 thats being dumb like usual. But on the new server I am seeing XCP PV network device #0 and on the windows 10 one I was seeing XenServer PV network device #0

Yea I did the windowsupdate checkbox in XO for the windows computers, but we still seem to have the same issues. I saw that broadcom NICs have performance problems with Xen and in general so that might be it. Im going to update the firmware and see and also add another network card to see if its the NICs in general. But im also gonna test the XCP-NG version windows drivers to see if they may be more compatible.

@olivierlambert I have Xenserver PV drivers but it says they are from 2017 and I have a windows 10 computer hosting quickbooks and an employee is having terrible performance issues but we didnt have these performance issues with Hyper-V. Could it be related to the PV drivers being out of date?

Will the XCP-NG Windows PV Drivers fixed the network bottleneck issues? I have XenServer drivers installed and a 1Gb connection but only getting 100kbps speed from any of the windows VMs