I need a help on the issue with my site. I've set up an auto generated XML sitemap and submit that on Google Web Master Tool. At this month I noticed that the website doesn't come up in the search results on Google as compare on before. I checked Google webmaster tool statistics, they were showing 4xx and some other Web crawl errors, but the pages are just fine when we browse. Stuck trying to identify the cause of the errors. suggestion are appreciated. Thx