Improvement and Bug report

[ken1971]

Improvement:

(1) Faster connection between users than before.

Bug

(1) When more than one file download, the harddisk will be periodically hanging around for a couple of minutes. The "hanging around" does not mean that the harddisk did not move, just the contrary, the harddisk did not stop read and write for the said period and all upload/download stopped due to this occassion

(2) The connection will stop periodically. It does not mean the connection lost, but like this: 100K drop to zero but the connection still holds, the upload/download resume after "manual connect". So we have to check the connection speed very often, it's very inconvenient.