1. Client Setting:
Download Site: xxxx.xxx.org (IP: 192.168.y.y, set by using Windows HOSTS file)

2. Server Setting
xxxx.xxx.org Files|
bytecode.cvd,daily.cvd,...,mirros.dat

3. I can access xxxx.xxx.org on browser from client,but
Clamwin didn't access xxxx.xxx.org.

ClamAV update process started at Tue Jul 19 08:26:53 2011
main.cvd is up to date (version: 53, sigs: 846214, f-level: 53, builder: sven)
WARNING: getpatch: Can't download daily-13326.cdiff from xxxx.xxx.org
WARNING: getpatch: Can't download daily-13326.cdiff from xxxx.xxx.org
WARNING: getpatch: Can't download daily-13326.cdiff from xxxx.xxx.org
WARNING: Can't download daily.cvd from xxxx.xxx.org
Trying again in 5 secs...

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And,why can't i use other port? (such as xxxx.xxx.org:81)