{"id":297,"date":"2007-05-11T19:26:19","date_gmt":"2007-05-11T18:26:19","guid":{"rendered":"http:\/\/www.ianfitter.com\/blog\/?p=297"},"modified":"2009-01-25T21:38:00","modified_gmt":"2009-01-25T21:38:00","slug":"bluetooth-pan-kills-network-connection","status":"publish","type":"post","link":"https:\/\/www.ianfitter.com\/blog\/2007\/05\/11\/bluetooth-pan-kills-network-connection\/","title":{"rendered":"Bluetooth PAN Kills Network Connection"},"content":{"rendered":"<p>My iMac lost its network connection this morning. The system.log was full of these:<\/p>\n<p><code>May 11 10:54:11 iMac configd[48]: bootp_session_transmit: bpf_write(en2) failed: No buffer space available (55)<br \/>\nMay 11 10:54:11 iMac configd[48]: DHCP en2: INIT transmit failed<\/code><\/p>\n<p>which is odd, because the iMac only has two ethernet interfaces: en0 (wired) and en1 (wireless), so what is en2?<\/p>\n<p>It seems that 10.4.9 introduced something called &#8216;<a href=\"http:\/\/en.wikipedia.org\/wiki\/Personal_area_network\">Bluetooth PAN<\/a>&#8216; and when I paired up my new Nokia 6300, OS X enabled this. Unfortunately, it is this which causes the DHCP issue shown in system.log. <\/p>\n<p>The solution (<a href=\"http:\/\/carpeaqua.com\/archives\/2007\/04\/03\/1049_dhcp_issues\/\">thanks to Jonas Salling&#8217;s comment on Justin Williams&#8217; Blog<\/a>) is to disable Bluetooth PAN in system preferences.<\/p>\n<div align=\"center\"><a href=\"\/blog\/wp-content\/syspref_network.gif\" rel=\"lightbox\" title=\"De-activate the Bluetooth PAN\"><img src='\/blog\/wp-content\/thumbsyspref_network.gif' alt='System Preferences' \/><\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>My iMac lost its network connection this morning. The system.log was full of these: May 11 10:54:11 iMac configd[48]: bootp_session_transmit: bpf_write(en2) failed: No buffer space available (55) May 11 10:54:11 iMac configd[48]: DHCP en2: INIT transmit failed which is odd, because the iMac only has two ethernet interfaces: en0 (wired) and en1 (wireless), so what [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[180,3],"class_list":["post-297","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-bluetooth","tag-mac-os-x"],"_links":{"self":[{"href":"https:\/\/www.ianfitter.com\/blog\/wp-json\/wp\/v2\/posts\/297","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ianfitter.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ianfitter.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ianfitter.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ianfitter.com\/blog\/wp-json\/wp\/v2\/comments?post=297"}],"version-history":[{"count":0,"href":"https:\/\/www.ianfitter.com\/blog\/wp-json\/wp\/v2\/posts\/297\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ianfitter.com\/blog\/wp-json\/wp\/v2\/media?parent=297"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ianfitter.com\/blog\/wp-json\/wp\/v2\/categories?post=297"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ianfitter.com\/blog\/wp-json\/wp\/v2\/tags?post=297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}