#451 DNS lookup failure

[ZW-tanliang11]

I subscribed to 2 additional podcasts from the BBC
website but when I clicked on the check for new
podcasts button, the log shows that nothing was picked
up. Is this because my modem is too slow?

here is what it said.
Last check completed at Sun Aug 21 05:49:57 2005
Grab failed (DNS lookup failure) for
http://homepage.mac.com/dailysourcecode/DSC/ipodder
Directory.opml
Grab failed (DNS lookup failure) for
http://www.podnova.com/xml_top40.opml
Grab failed (DNS lookup failure) for
http://www.gigadial.net/public/opml/dial25.opml
Grab failed (DNS lookup failure) for
http://homepage.mac.com/dailysourcecode/opml/podSq
uad.opml
Grab failed (DNS lookup failure) for
http://directory.ipodderx.com/opml/iPodderX_Popular.op
ml
Grab failed (DNS lookup failure) for
http://www.podcastalley.com/PodcastAlleyTop50.opml
Grab failed (DNS lookup failure) for
http://sportspodnet.com/opml/spn.opml
Grab failed (DNS lookup failure) for
http://podfeed.net/opml/podfeed.opml
Grab failed (DNS lookup failure) for
http://todmaffin.com/radio.opml
Grab failed (DNS lookup failure) for
http://www.techpodcasts.com/dir/tech.opml
Grab failed (DNS lookup failure) for
http://ipodder.sf.net/opml/ipodder.opml
Pass #1: downloading feeds and looking for enclosures
Figuring out which feeds to scan...
We have 4 feeds to scan.
Scanning...
FeedScanningJob 30527440 'Default Channel' reports:
Can't grab Default Channel: DNS lookup failure
FeedScanningJob 30527408 'iPodder News' reports:
Can't grab iPodder News: DNS lookup failure
FeedScanningJob 30526736 'Feed ID 3 at
http://downloads.bbc.co.uk/rmhttp/downloadtrial/radio4/fr
omourowncorrespondent/rss.xml' reports: Can't grab
Feed ID 3 at
http://downloads.bbc.co.uk/rmhttp/downloadtrial/radio4/fr
omourowncorrespondent/rss.xml: DNS lookup failure
FeedScanningJob 29497168 'Feed ID 4 at
http://downloads.bbc.co.uk/rmhttp/downloadtrial/worldser
vice/godigital/rss.xml' reports: Can't grab Feed ID 4 at
http://downloads.bbc.co.uk/rmhttp/downloadtrial/worldser
vice/godigital/rss.xml: DNS lookup failure
Pass #1 ended with 0 enclosures discovered.
Pass #2: downloading enclosures...
Filtering 0 discovered enclosures...
0 enclosures need more work.
Pass #2 ended.