I agree with Deozaan. It sounds like a DNS issue to me too.
You may have corrupted data in your cache. Clear that out first by doing as follows:
- From your <start menu><Accessories>
- Right click on <Command Prompt>
- Select <Run as Administrator>
- In the command box enter: ipconfig /flushdns
You'll get a confirmation that says:
Windows IP Configuration Successfully flushed the DNS Resolver Cache.Try webbing out to your site again and see if it now works properly.
If it does you can leave things as are, or optionally switch your DNS settiongs to use OpenDNS. (Recommended btw.)
If you already know how to configure DNS, the OpenDNS servers are :
208.67.222.222
208.67.220.220
If flushing the DNS cache didn't fix things:
Change your DNS server settings to use OpenDNS, save the changes, and then reflush your DNS cache per above and (hopefully) all should be well.
If you need detailed instructions for setting up OpenDNS on your device - look
here.
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Note: If you decide you prefer to use OpenDNS across your home network, you can configure it on your router quite easily and just have all member PC and other devices use it automatically via DHCP.
Much easier than manually configuring it for each device when you have several.
Luck!