WSANO_DATA

Question

I am trying to connect to FTP site that does reverse lookup succesfully and getting:

The requested name is valid and was found in the database, but it does not have the correct associated data being resolved for.

Any tips at what causes this will be appreciated.

Thanks,
eukom

Answer 1

The fuller description of this Winsock code says "The usual example for this is a hostname -> address translation attempt (using gethostbyname or WSAAsyncGetHostByName) which uses the DNS (Domain Name Server), and an MX record is returned but no A record - indicating the host itself exists, but is not directly reachable."

Can you FTP to the host from the command line?

I am trying to connect to FTP site that does reverse lookup succesfully and getting:

The requested name is valid and was found in the database, but it does not have the correct associated data being resolved for.

Any tips at what causes this will be appreciated.

Thanks,
eukom

Answer 2

Yes I can connect to the FTP site in question through DOS FTP.

Is there any way to force FTPClient to not do reverse lookup?

Thanks,
eukom

Can you FTP to the host from the command line?

Answer 3

Try supplying the IP address as the hostname.

Yes I can connect to the FTP site in question through DOS FTP.

Is there any way to force FTPClient to not do reverse lookup?

Thanks,
eukom

Can you FTP to the host from the command line?

Answer 4

I tried it already, same error message comes up.
Do you know what else might be causing this error?

Thanks,
eukom

Try supplying the IP address as the hostname.

Yes I can connect to the FTP site in question through DOS FTP.

Is there any way to force FTPClient to not do reverse lookup?

Thanks,
eukom

Can you FTP to the host from the command line?

Answer 5

what does "tracert host" give you?

I tried it already, same error message comes up.
Do you know what else might be causing this error?

Thanks,
eukom

Try supplying the IP address as the hostname.

Answer 6

Hi,
"tracert host" completes succesfully.
This looks increasingly weird.
Do you have any ideas?

Thanks a lot for your time!

what does "tracert host" give you?