Significant Google crawl errors

[GregWalt]

We've got a site that continuously like clockwork encounters server errors with when Google crawls it.  Since the end of last year it will go a week fine, then it will have two straight weeks of 70%-100% error rate when Google tries to crawl it.  During this time you can still put the URL in and go to the site, but spider simulators return a 404 error.  Just this morning we had another error message, I did a fetch and resubmit, and magically now it's back.  We changed servers on it in Jan to Go Daddy because the previous server (Tronics) kept getting hacked.  IIt's built in html so I'm wondering if it's something in the code maybe?

http://www.campteam.com/

[GregWalt]

This is the URL error list in Webmaster Tools

| Forms/Camp.pdf | 404 | 7/9/13 |
| | 2 | sportsinsurance.php | 404 | 5/2/13 |
| | 3 | Forms/Waiver.pdf | 404 | 7/2/13 |
| | 4 | metro/index.htm | 404 | 6/21/13 |
| | 5 | Forms/Camp_Tournament_Application.pdf | 404 | 7/9/13 |
| | 6 | Forms/Spectator.pdf | 404 | 7/9/13 |
| | 7 | Forms/Boxing.pdf | 404 | 5/6/13 |
| | 8 | sports-camp-insurance.html | 404 | 6/16/13 |
| | 9 | forms/T.C.S._ | 404 | 7/3/13 |
| | 10 | Camp | 404 | 6/14/13 |
| | 11 | Forms/Sports.pdf | 404 | 4/21/13 |
| | 12 | pages/clients.html | 404 | 4/15/13 |

|   |

http://www.campteam.com/: Googlebot can't access your site****July 10, 2013

Over the last 24 hours, Googlebot encountered 13 errors while attempting to connect to your site. Your site's overall connection failure rate is 72.2%.

I've got 23 of these messages going back to 11/12

It tells me that no Robots.txt Fetch issues were encountered, or DNS issues.  All errors are related to server connectivity according to Google.

[Mike_Davis]

I see that your site is dealing fine with 404 errors.  Hrmm.  Could you copy and paste the crawl error URLs you are getting from webmaster tools?  Thanks!

BTW I noticed that you have a duplicate content issue in that you haven't removed the www from your URL.  You should add the following code to your .htaccess file.

<code class="htaccess" title="in your .htaccess file">RewriteEngine On
RewriteCond %{HTTP_HOST} !^my-domain\.com$ [NC]
RewriteRule ^(.*)$ http://my-domain.com/$1 [R=301,L]</code>