XML sitemap errors - "Network unreachable: robots.txt unreachable"

[skinnyalley]

I had submitted my sitemap to google long time from now. Some days back I received this errors in the sitemap's page "Network unreachable: robots.txt unreachable".
Can anyone explain what the problem is.

[Robert Charlton]

There were several such reports here at the end of August.

Searching the following on Google turned up these two threads that look particularly on topic....

sitemap network unreachable site:webmasterworld.com

Network unreachable : robots.txt unreachable
[webmasterworld.com...]

Network Unreachable, Robots.txt Unreachable error in Google Sitemaps
trying to understand what it's about

[webmasterworld.com...]

Apparently, though, not all of the questions have been answered.

[Reno]

I've also been using sitemap.xml a long time with Webmaster Tools, and like you, have started getting that same message. For what it's worth, it seems to go away after awhile (or rather, it disappears from one site listed on the dashboard, only to appear at another!). Something must be broken but I have to think an engineer is working on it, even as we try to figure it out.

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