any way to detect condition "connected to ISP but not internet"?

Dave dave at looktowindward.com
Tue Jan 20 11:20:27 EST 2009


Hi,

When this happens, can you get to the DNS servers? If not then  
checkout the "Test Internet Connection.rev" stack on revOnline in the  
Utilities section. I'd look at this anyway as it might have some code  
that would help.

All the Best
Dave

On 20 Jan 2009, at 03:21, Brian Yennie wrote:

> This is by no means foolproof, and just based on my own anecdotal  
> connection issues, but you might consider checking your computer's  
> local IP address. If it is in one of the "self-assigned" ranges,  
> often that means you are connected to your router, but not to the  
> larger network. Of course there are many situations where this  
> might fail, but it is one common level of problems. I believe two  
> common tip-offs are addresses 192.xxx.xxx.xxx and 169.xxx.xxx.xxx.
>
> If you need a general solution, there are probably many layers to  
> account for, but you can at least try to detect the most common ones.
>
> HTH
>
>
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