Probably for some reason the connection dropped. There are a number of different reasons that can happen, including
- system overheating
- driver problems with your ethernet card
- hardware problems with your ethernet card
- drive fills up or your quota is reached
- configuration of firewalls on your network
- difficulties with your ISP's configuration
- reaching a transfer volume maximum with your ISP
- hardware or software problems with the network equipment at your ISP or further on the network (beyond your control)
- network congestion
- destination gets busy and drops the connection
There are other reasons that have slipped my mind at the moment.
By the way, the line
mget(SSS,F_AAA(size(F_AAA,1)).name);
would normally be written
mget(SSS,F_AAA(end).name);
That would, however, not have any effect on the connection; it is just a matter of style.
