Are you using any SEO or Redirection plugins on your site? If so, make sure they’re updated. You can also try restoring them to default settings, or completely uninstalling them to see if it corrects the problem.
Also, verify that the siteurl is accurate in the database.
Plugin list:
Akismet
Version 2.4.0 | By Automattic | Visit plugin site
AWS Easy Page Link
Version 0.5 | By Derek Ashauer | Visit plugin site
Contact Form 7
Version 2.3.1 | By Takayuki Miyoshi | Visit plugin site
Disable RSS
Version 1.0 | By Clifton H. Griffin II | Visit plugin site
Exclude Pages from Navigation
Version 1.9 | By Simon Wheatley | Visit plugin site
Google Analyticator
Version 6.1.1 | By Ronald Heft | Visit plugin site | FAQ | Support | Donate
Google XML Sitemaps
Version 3.2.4 | By Arne Brachhold | Visit plugin site | Settings | FAQ | Support | Donate
Maintenance Mode
Version 5.4 | By Michael Wöhrer | Visit plugin site
My Page Order
Version 3.0a | By Andrew Charlton | Visit plugin site | Order Pages | Support Forum | Donate
Revision Diet
Version 1.0.1 | By David Miller | Visit plugin site
TinyMCE Advanced
Version 3.2.7 | By Andrew Ozz | Visit plugin site
I don’t know man… Trouble shoot! I told you what to do. Give it a try.
Did you ever solve the redirect problem?