{"id":10225,"date":"2009-12-15T18:50:28","date_gmt":"2009-12-15T18:50:28","guid":{"rendered":"https:\/\/aidanfinn.com\/?p=10225"},"modified":"2009-12-15T18:50:28","modified_gmt":"2009-12-15T18:50:28","slug":"kb974909-heavy-outgoing-network-traffic-causes-hyper-v-network-outages","status":"publish","type":"post","link":"https:\/\/aidanfinn.com\/?p=10225","title":{"rendered":"KB974909: Heavy Outgoing Network Traffic Causes Hyper-V Network Outages"},"content":{"rendered":"<p>Microsoft <a href=\"http:\/\/support.microsoft.com\/kb\/974909\" target=\"_blank\">released<\/a> a patch for Windows Server 2008 R2 Hyper-V host servers.&#160; It fixes a problem where VM\u2019s are experiencing heavy outgoing network traffic loads.&#160; This can cause the virtual NIC to fail and the only way to fix it (otherwise) is to restart the VM.<\/p>\n<p><em>\u201cConsider the following scenario: <\/em><\/p>\n<ul>\n<li><em>You install the Hyper-V role on a computer that is running Windows Server 2008 R2.<\/em><\/li>\n<li><em>You run a virtual machine on the computer.<\/em><\/li>\n<li><em>You use a network adapter on the virtual machine to access a network.<\/em><\/li>\n<li><em>You establish many concurrent network connections, or there is heavy outgoing network traffic.<\/em><\/li>\n<li><em>In this scenario, the network connection on the virtual machine may be lost. Additionally, the network adapter is disabled. <\/em><\/li>\n<\/ul>\n<p><em>Note: You have to restart the virtual machine to recover from this issue.\u201d<\/em><\/p>\n<p>This hotfix applies to<\/p>\n<ul>\n<li>Windows Server 2008 R2 Datacenter<\/li>\n<li>Windows Server 2008 R2 Enterprise<\/li>\n<li>Windows Server 2008 R2 Standard<\/li>\n<\/ul>\n<p> It requires the host to be rebooted.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft released a patch for Windows Server 2008 R2 Hyper-V host servers.&#160; It fixes a problem where VM\u2019s are experiencing heavy outgoing network traffic loads.&#160; This can cause the virtual NIC to fail and the only way to fix it (otherwise) is to restart the VM. \u201cConsider the following scenario: You install the Hyper-V role &hellip; <a href=\"https:\/\/aidanfinn.com\/?p=10225\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;KB974909: Heavy Outgoing Network Traffic Causes Hyper-V Network Outages&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-10225","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"Microsoft released a patch for Windows Server 2008 R2 Hyper-V host servers. 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