I have an intermittent issue, although persistent enough to be quite annoying, with Safari 5.0 on Leopard 10.5.8.
Go back in time a week...
When going to random web sites, my browsers were failing to load the page. Upon total failure, when I got the "server not responding" error, I hit REFRESH and the page would load immediately.
This was happening on all my household computers, (Macs (Snow Leopard and Leopard and Windows XP IE7) for the last week. I had my ISP come to the house today (ATT U-Verse) and they replaced the router. Since ATT left, my wireless machines are much faster, and all computers but this desktop Mac are error free.
I swapped my two hubs today too, and the problem has stayed with this Mac.
If I use FireFox at the same time, it works perfect and if fast.
How can I diagnose this?