> I don't know where the numeric code for it comes from. Might this
> shed any additional information to know what the number indicates?
>
> ISC ERROR CODE:671089046

This equals...

isc_err_base (335544320)
plus
isc_net_read_error (335544726)

My guess being that the error codes are being mistakenly added
together somewhere in the source.

> ISC ERROR MESSAGE:
> Error reading data from the connection.

This error text was found in msgs.h as

"Error reading data from the connection.", /*406, net_read_err
*/


I am assuming the file inet.c is the one relevent to your
localhost/TCPIP arrangement. In which case the net_read_err occurs
after to a call to the winsock recv function. 406 is just the array
offset of the message.

Have you checked the Interbase.log file? You may find a message
like...

"INET/inet_error: %s errno = %d", function, status

where %d would give you the winsock error code.


HTH

Geoff Worboys
Telesis Computing