This error is displayed after Ping Now:
Ping: http://submissions.ask.com/ping?sitemap=http://somedomain.com/sitemap.xml ...
Response code: -10 - rcCommErrorSocket -10

All other pings are 200.

Thanks for reporting. I will take a look tonight!

It appears their sitemap ping service is down. I will wait a few days and see if they fix it

Quote from: Webhelpforums on December 22, 2010, 10:37:57 PM
It appears their sitemap ping service is down. I will wait a few days and see if they fix it

Yes - seems to be down still

Is there anywhere an actual list of search engine ping services?
I only get this responses from A1SG:

Ping: http://www.google.com/webmasters/tools/ping?sitemap=http://4you-solutions.de/sitemap.xml ...
Response code: 200 - OK 200

Ping: http://www.bing.com/webmaster/ping.aspx?siteMap=http://4you-solutions.de/sitemap.xml ...
Response code: 200 - OK 200

Ping: http://search.yahooapis.com/SiteExplorerService/V1/ping?sitemap=http://4you-solutions.de ...
Response code: 403 - Forbidden 403

That's all.

Current version of A1 Sitemap Generator will pings these if you use the "Add common pings" button:

http://www.google.com/webmasters/sitemaps/ping?sitemap=http://4you-solutions.de/sitemap.xml
http://www.bing.com/webmaster/ping.aspx?siteMap=http://4you-solutions.de/sitemap.xml
http://rpc.weblogs.com/pingSiteForm?name=4you-solutions&url=http://4you-solutions.de/sitemap.xml

If anyone knows of more places to ping, I will be happy to add them into the next version. (Otherwise, both current and old versions of A1SG allow you to add your own ping URLs.)