Check your server connectivity
You can check your server connectivity by going to the RSSeo! Control panel and click on the "Check connectivity" button.
Please note that in order to run RSSeo! properly on your server you must have one of the following functions enabled: cURL , fsockopen , fopen , file_get_contents. In a more recent version of RSSeo! (revision 7), loopback connections are not required if you have the PHP exec function enabled. You can read more about this here.
You have sh404SEF installed
If you have sh404SEF installed on your system and have the "Anti-flood" protection set to "Yes" please disable it. You should also disable meta data management: Components > sh404SEF > Configuration > Meta/SEO
You have cache enabled
It is best to clean out the cache and disable it temporarily when performing meta data modifications. To disable the cache, just go Site > Global configuration > System and disable the System Cache plugin: Extensions > Plugin Manager > System cache . After you have finished the meta data management you can enable the cache options.
