Geek Posted March 9, 2012 Posted March 9, 2012 <div class="KonaBody"><p><img src="http://osxdaily.com/wp-content/uploads/2012/03/ipsw.jpeg" alt="IPSW" title="ipsw" width="128" height="128" class="alignright size-full wp-image-28212" /> iOS 5.1 was released a few days ago but some people are still having problems when trying to update. The download can time out, not start at all, or sometimes throw an error message saying “The network connection could not be established.” If you’re having trouble <a href="http://osxdaily.com/2012/03/07/ios-5-1-download/">downloading iOS 5.1</a> from Apple’s servers, try these two fixes:</p> <ul> <li><strong>Reset Network Settings on iOS Device</strong>: Tap Settings > General > Reset > Reset Network Settings</li> <li><strong>Clear Hosts File</strong>: Look at your hosts file for anything blocking Apple’s servers and comment them out, this is mostly relevant to jailbreakers and if you see “<a href="http://osxdaily.com/2010/12/06/error-3194-fix-for-itunes/">Error 3194</a>“</li> <li><strong>Change DNS Servers</strong>: Adjusting DNS on either the computer you are downloading from or iOS device if using OTA can resolve the issue, instructions on how to do so are below</li> </ul> <p><strong>Changing DNS in iOS</strong></p> <ol> <li>Tap on Settings, tap on “Wi-Fi”, and tap on the blue arrow next to the router name</li> <li>Under “DHCP” tab tap on “DNS” and replace with: “8.8.8.8″ for Google DNS, or “208.67.222.222″ for OpenDNS</li> <li>Tap the Back button and attempt to use OTA again</li> </ol> <p><strong>Change DNS in OS X</strong></p> <ol> <li>Open System Preferences from the Apple menu</li> <li>Click on “Network” and then click on ‘Advanced’ in the lower right corner</li> <li>Click the “DNS” tab and then add a new DNS server by clicking the “+” icon, adding either “8.8.8.8″ for Google DNS or “208.67.222.222″ for OpenDNS</li> <li>Drag the newly added DNS server to the top of the list, click “OK” then close out of System Preferences</li> </ol> <p>On a Mac you may need to follow this up with <a href="http://osxdaily.com/2008/03/21/how-to-flush-your-dns-cache-in-mac-os-x/">flushing DNS cache</a>, so open the Terminal and type the following:</p> <p><code>dscacheutil -flushcache</code></p> <p>Now try opening iTunes and updating, or try to <a href="http://osxdaily.com/2012/03/07/ios-5-1-download/">download iOS 5.1 firmware directly</a> from Apple again.</p> <p>An unrelated but pleasant side effect of changing DNS can be that your <a href="http://osxdaily.com/2011/12/16/slow-iphone-wi-fi-speed-up-with-custom-dns/">wi-fi speeds increase</a>, give it a try and let us know if it works for you.</p> <p><em>Thanks to Aygie and Sayed for the DNS tips!</em></p> </div> <p><a href="http://feedads.g.doubleclick.net/~a/_gb-s4XD1bBqrBtx1mN1FOmCvm8/0/da"><img src="http://feedads.g.doubleclick.net/~a/_gb-s4XD1bBqrBtx1mN1FOmCvm8/0/di" border="0" ismap="true"></img></a><br/> <a href="http://feedads.g.doubleclick.net/~a/_gb-s4XD1bBqrBtx1mN1FOmCvm8/1/da"><img src="http://feedads.g.doubleclick.net/~a/_gb-s4XD1bBqrBtx1mN1FOmCvm8/1/di" border="0" ismap="true"></img></a></p><div class="feedflare"> <a href="http://feeds.feedburner.com/~ff/osxdaily?a=_338WeVCgKQ:5AFfP54A_E0:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/osxdaily?d=yIl2AUoC8zA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/osxdaily?a=_338WeVCgKQ:5AFfP54A_E0:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/osxdaily?i=_338WeVCgKQ:5AFfP54A_E0:V_sGLiPBpWU" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/osxdaily?a=_338WeVCgKQ:5AFfP54A_E0:D7DqB2pKExk"><img src="http://feeds.feedburner.com/~ff/osxdaily?i=_338WeVCgKQ:5AFfP54A_E0:D7DqB2pKExk" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/osxdaily?a=_338WeVCgKQ:5AFfP54A_E0:7Q72WNTAKBA"><img src="http://feeds.feedburner.com/~ff/osxdaily?d=7Q72WNTAKBA" border="0"></img></a> <a href="http://feeds.feedburner.com/~ff/osxdaily?a=_338WeVCgKQ:5AFfP54A_E0:qj6IDK7rITs"><img src="http://feeds.feedburner.com/~ff/osxdaily?d=qj6IDK7rITs" border="0"></img></a> </div><img src="http://feeds.feedburner.com/~r/osxdaily/~4/_338WeVCgKQ" height="1" width="1"/> View the full article
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