David Beck wrote:
Sorry for the ambiguity. For this particular customer, the attempt to upload the
file with libURLftpUpload fails 100% of the time with libURLErrorData returning
the "invalid host address" error. However, strangely she did say that it was
worked for her a few times before it started failing 100% of the time. She is
sure that her modem is connected when the problem occurs. I had her load a page
in Explorer to confirm that and also in the screen shot she sent me I could see
the internet connection status as "active" with bytes both sent are received in
the task bar. I know that the URL is valid. Out of the three likely causes you
listed, that leaves the user's DNS server. Is there a way to test that
possibility? Do you think that is what is going on?
Open a shell window, and at the command prompt type
ping www.somehost.com
(or whatever the relevant host portion of the URL is).
The first line of output should say something like ....
Pinging www.somehost.com [<ip address>] with xx bytes of data :
Any problem with the DNS server will likely show up as either "host not
found" or "could not find host ..." or "dns request timed out" or similar.
Is it the same host portion of the address for ftp as for http / IE ?
If it's an ftp upload, does it include a username and password ?
Any chance they're wrong ?
or contain an odd character that is confusing things ?
Can you easily change it to use a numeric IP address instead of the
hostname (and if so, what error message does that give) ?
The "invalid host address" message is returned by libUrl when the
hostnameToAddress function returns an error.
Likely causes are a bad url, a problem with the user's DNS server,
or a network connection problem.
You said "Eventually". Do you mean there is a long wait before the
result is returned, or the user does it successfully a number of times
and then it fails? If the former, is the user's modem currently
connected when the prolem occurs?
Cheers
Dave
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