Slow Page Load Over WiFi
I was recently upgraded to 75Mb service and they installed a new AT&T modem as part of that upgrade. I am getting good results on speedtest, close to the advertised speed, both over WiFi and with hard-wired ethernet connections.
However, I notice some significant lags when loading a web page, anywhere from 2 seconds to over 20 seconds, especially on my WiFi-connected iPad. After I click on a link in Safari, the progress bar extends about 1/2 inch, then stalls. Eventually, after a wait of 2 to 20 seconds, the lock symbol shows up next to the website name, and the page loads very quickly from there. I also see long delays in games (such as Angry Birds) when accessing their host. I do not see the same delay when loading pages from my desktop, which has a hard-wired ethernet connection.
I suspected the problem with the DNS server. My modem is using the standard AT&T DNS servers, 188.8.131.52 and 184.108.40.206. I tried changing my iPad to use one of the free DNS servers (220.127.116.11), but it did not solve the problem.
Any suggestions? Do you know of any reason I would get different response time from WiFi versus ethernet?