This is the third time I have experienced this issue, and my computer has been rebuilt in-between to ensure it was not an OS/malware issue. This first occurred on Monday of this week and it has recurred today, after the rebuild. Seemingly randomly I will be unable to browse using the HTTP protocol; Internet Radio and connectivity to the network continues; I simply cannot browse the web in Safari, IE or Firefox, and the only fix I have found is a restart of the machine (graceful, though).
Firefox times out; Safari reports a 'kCFErrorDomainWinSock:10054' error message when it times out. As yet, I am unable to locate any information on this error, but this is becoming VERY annoying none-the-less.
Has anybody seen this before? If so, please post, as any info may help me track this issue down. I have no idea what the error indicates, so if I am barking up the wrong tree, let me know and I can supply additional information regarding network firewall etc.
If it helps, the applications running at the time (on a Windows XP SP3 computer) were:
Windows Media Player (streaming Internet Radio)
...and possibly a few others I can't remember.