Here is my serial output from Gixxer latest version.
********************** Arduino Started **********************
Setting up SD card...
Initializing SD card...Card initialized.
***************** Failed to connect to client *****************
error opening datalog.txt
***************** Failed to connect to client *****************
error opening datalog.txt
Since aboshan has no problem this could be just my setup. SD files seem to be ok for my approach (see earlier in thread) so I'm not sure what is different. Using new UNO and Arduino0022. Only changes to code are to use fixed IP suitable for my subdomain, remove references to gateway since this will be correctly deduced by the system, and change MAC addr.
Since it is only a few days until Gixxer has his hardware in hand will wait and see what transpires at that time.