portmaster fails to fetch distfiles

[Roman Levitskiy]

 Hello freebsd-ports subscribers.
 Some time ago I've started using portmaster, and faced with
trouble: for unknown reason, it cannot fetch distfile.
For example, today I have started upgrading clamav package
using "portmaster clamav" command. It give me such looping
messages:

===>>> Waiting on fetch & checksum for security/clamav <<<===
===>  Found saved configuration for clamav-0.93.1_2
=> clamav-0.93.3.tar.gz doesn't seem to exist in /usr/ports/distfiles/.
=> Attempting to fetch from
http://nchc.dl.sourceforge.net/sourceforge/clamav/.
clamav-0.93.3.tar.gz

===>>> Waiting on fetch & checksum for security/clamav <<<===
===>  Found saved configuration for clamav-0.93.1_2
=> clamav-0.93.3.tar.gz doesn't seem to exist in /usr/ports/distfiles/.
=> Attempting to fetch from
http://nchc.dl.sourceforge.net/sourceforge/clamav/.
clamav-0.93.3.tar.gz

===>>> Waiting on fetch & checksum for security/clamav <<<===
===>  Found saved configuration for clamav-0.93.1_2
=> clamav-0.93.3.tar.gz doesn't seem to exist in /usr/ports/distfiles/.
=> Attempting to fetch from
http://nchc.dl.sourceforge.net/sourceforge/clamav/.
clamav-0.93.3.tar.gz

 The same situation seen frequently with other ports - it continues
trying to fetch file with no success. After some time, it can got it,
but it start boring me.
 Can say for sure, that distfiles are existing. As in above example,
it I issue  a command "# fetch
http://nchc.dl.sourceforge.net/sourceforge/clamav/clamav-0.93.3.tar.gz",
it is starting downloading immediately.

 Any thoughts will be appreciated.

--
Roman