Network issue with initial connections on Hyper-V

This is the opposite of all the other networking issues I have seen with Hyper-V- anyone run into this?
I am running Hyper-V on a Server Core installation, and have had the same issue when I used Server 2012R2 as when I used Server 2008R2 on the same server as a virtual host. The server is an HP ProLiant DL360 Gen8 with 2x 8-core processors, 32 GB RAM. The
VM is sized and configured to stay within 1 NUMA node. It uses a single port of the 4-port HP/Broadcom 331 NIC, with all the TCP LSO settings disable at the switch, host, and guest, same with the power management settings. We have ProxyARP on the network,
so I have set the ArpRetryCount key to 0.
I have seen it happening with and without SR-IOV enabled. The guest OS is an RDS server, so for the sake of our CAL's it has to stay at Server 2008R2. I have set up a HOSTS file to mitigate this problem, as it seems to be a DNS issue- Here's what happens:
The first time I visit a resource, the server will timeout. An example not in our HOSTS file does this consistently: If I go to https://mail.mydomain.com/OutlookWebAccess, it spins for a couple of minutes before timing out. I hit refresh and the page loads
immediately. This server is colocated in-house, as is the mailserver. I'd say it is a DNS issue at some level, but I'd like to know what level it is- Is it just timing out trying to cache the DNS request, or is there a performance issue with a DNS server on
the network? (All of our DNS is AD-integrated running on DC's).
Here is where I'm seeing this:
Internet Explorer- described above
Salient Interactive Miner- at the login screen, it searches for a database and times out. If I go to the setup and enter the IP address, it still times out. It will not find the database server until I quit and restart the program. If this is the same issue,
it would obviously not be a DNS problem.
I DON'T see it in GP9 connecting to a datasource
Prior to setting up the HOSTS file, I saw this in Windows Explorer connecting to network shares on the same LAN segment.
This appears to only happen to the Hyper-V guest OS. As a best practice, whenever Windows Update runs, I update the Integration Components.
I have the bindings properly ordered on the guest VM, with the network adapter the goes to the physical NIC first, and IPv4 ordered before IPv6.
All updates are isntalled, and the firmware is at it's latest revision.
Any ideas?

Hi Daniel,
" This appears to only happen to the Hyper-V guest OS. "
Do you mean that any other hosts can access the network resource normally except these VMs ?
If yes , my suggestion is to disable the VMQ on the physical NIC for the VMs , then try test again .
Best Regards
Elton Ji
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Hi @DmiBro,
Welcome to the HP Forums!
I see that you are having some wireless issues with your HP Deskjet 3545 to your Mac OS X 10.10 and Windows 7 computers. I am sorry to hear this, but I am happy to help!
I would recommend the following guides:
HP Single-Function and Multifunction Printers - 'Printer is offline' Message Displays on the Compute.... (The solutions for OS X v10.8 Mountain Lion and OS X v10.9 Mavericks will work on Mac OS X 10.19 Yosemite.)
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HP ENVY 4500 and HP Deskjet Ink Advantage 3540 e-All-in-One Printer Series - Printer Does Not Mainta....
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RnRMusicMan
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" to say “Thanks” for helping!

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Hi Sir,
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>>Next step was to live migrate server A to another node. This action did
cause server B to lose its network connection.
They are connecting to same virtual switch ?
First please run cluster validation to check if there is any error .
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If the issue persists , I would suggest you to remove that virtual switch on both nodes then re-create them .
Best Regards,
Elton Ji
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Web Application using BC4J in local mode
Using Default Connection Stagegy
Stateless Release Mode
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Thanks for the additional info. Please see my comments. below.
Sorry should have been more specififc -
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// get a reference to the BC4J connection pool manager
import oracle.jbo.server.ConnectionPoolManagerFactory;
import oracle.jbo.server.ConnectionPoolManagerImpl;
import oracle.jbo.pool.ResourcePool;
import java.io.PrintWriter;
import java.util.Enumeration;
// get the ConnectionPoolManager. assume that it is an instance of the supplied manager
ConnectionPoolManagerImpl mgr = (ConnectionPoolManagerImpl)ConnectionPoolManagerFactory.getConnectionPoolManager();
Enumeration keys = mgr.getResourcePoolKeys();
PrintWriter pw = new PrintWriter(System.out, true);
while (keys.hasMoreElements())
Object key = keys.nextElement();
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pool.dumpPoolStatistics(pw);
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I have a very annoying problem with my Nokia 5800 XM and the Spotify-app. I updated the app to v. 0.4.3.9 yesterday and it required that I uninstalled the old version first, i.e deleting all my cached tracks. Now today when I'm going to resync (on WLAN, since it's about 500 tracks) it just won't connect. I choose the correct WLAN from the list, but the app continues being blue (not green) and then the list pops up again. I read another discussion about almost the same thing a moment ago, so I tried to go to the menu and check the WLAN connection from its menu. So I did that, and it says my WLAN has full signal strength (I'm right next to the router) but then it loses the connection and asks me again which network I want to use. I have not had any issues with WLAN in any other app, and I have synced tracks with Spotify on my WLAN before, so I have no idea where the problem lies. Maybe something with the update and my WLAN? I don't know...
About the attachments: The list that shows several times and then the WLAN list where I'm connected to my network and it has full strength. "Marsvinsfarmen" is my network.
I'm thankful for answer, I use Spotify every day!
Solved!
Go to Solution.
Attachments:
Scr000012.jpg ‏51 KB
Scr000013.jpg ‏54 KB
Scr000014.jpg ‏50 KB

Okay everyone! I struggled with this problem for a long time, and I was just about to send a complaint to Spotify when it worked for me! See, I did a little different than before; this is the list I was going to file:
"1. I open Spotify from the application menu.
2. I choose "Online" mode.
3. My phone asks me how I want to connect to the Internet.
4. I pick "Easy WiFi".
5. I choose my WiFi network from the list.
6. Application seems to be signing me in.
7. My phone asks me again how I want to connect to the Internet.
8. I repeat the procedure. Spotify can't connect with WiFi.
-I have tried to connect using other WiFi networks, didn't work.
-Before I updated last time I could connect without problem.
-I can connect using 3G.
-I can connect using WiFi in other applications than Spotify, for example Opera Mobile and the native browser.
-I have reinstalled the application without difference."
However, I did it a little different, which made it work: instead of choosing "Easy WiFi", I choose my network directly from the list: see attachment. I never thought of that I could do so and I can't remember I did that before the update either. I have now synced my tracks and the app seems to be a little buggy, I still hope for an update, though it now works at least. Sometimes it crashes.
Please, tell me about if this worked for you and if you have other, better solutions. This isn't good enough, I still seek a better way.
/L
Attachments:
Scr000020.jpg ‏53 KB

Issues with Infinity - Connection Speed & Other Pr...

Hi all,
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So to cut a long story short: I have a phone line that works, but a big reduction in connectivity speed especially upstream speed. Should I be contacting BT to investigate yet another potential problem bearing in mind that I am still within the supposed '10 day training' window.
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If anyone can advise me it would be much appreciated.

Hi Tidycarrot,
Welcome to the Forum. What was the speed estimate given to you when you signed up to the service? If the speeds you are see are well below that estimate, send me in your details using the link below and I'll run a few test on you line from here.
http://bt.custhelp.com/app/contact_email/c/4951
Thanks
Paddy
BTCare Community Mod
If we have asked you to email us with your details, please make sure you are logged in to the forum, otherwise you will not be able to see our ‘Contact Us’ link within our profiles.
We are sorry but we are unable to deal with service/account queries via the private message(PM) function so please don't PM your account info, we need to deal with this via our email account :-)

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I've been working on this for over a day, with infinite variations on the theme; but I cannot get a basic query to give back data. I've got the following code:
<?
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Installed Oracle is 10g 10.1.0 on Windows, connection is local. Thanks very much for any input..

Odd; but thank you.
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In either case, thank you.

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Hi
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