You may be so glad with your shinny new iPhone 5 on hands. But you might also encounter some problems and issue when accessing internet on your iPhone 5 via Wifi. Some iPhone 5 users are experiencing a variety of issues with wifi on the device, almost always revolving around inconsistently slow wireless connections.
For the impatient, you can immediately try Google’s DNS services (184.108.40.206 or 220.127.116.11), but for the best results you’ll want to follow the full process to find the fastest DNS servers:
Edit DNS Settings On iPhone 5
Download NameBench on your Mac or PC and run it to discover the fastest DNS servers for your location, the test will take a few minutes
Take the best result and grab your iPhone 5
Open Settings, tap on “Wi-Fi”, and tap the blue arrow alongside the connected Wi-Fi network
Tap next to “DNS” to manually adjust the DNS entry
(Didn’t run NameBench? Try 18.104.22.168 or 22.214.171.124)
Leave Settings and try running Speed Test again, browse the web, or doing anything online with the iPhone 5 using the same wi-fi connection. Everything should be leaps and bounds faster. Finally, don’t forget to thank to OSXDaily.