Last month one of our residential /20 blocks started to get the Captcha page when searching Google.  Around the same time we get access denied on QVC.com   So far nothing out of the ordinary has been observed with regards to the networks and I do not see any blacklisting sites listing the block in question.   I am open to any ideas and would love to have someone at Google look into this se we can get to the bottom of this issue.

Regards,
                Josh