Can't change site name in browser title - Joomla! Forum - community, help and support

hi, having strange problem.

i configuration, have set display site name in page title. works well. can change display of site name before, after , none - , works fine.

but cannot change site name.

when change site name in configuration, change stored should be, , when check configuration.php file, site name changed correctly. in title tag, site name not change @ all.

i have tried clear cache, doesn't help.

i using joomla 2.55, , settings are:

search engine friendly urls: yes
use url rewriting: yes
adds suffix url: no
unicode aliases: no
include site name in page titles: after

i not using seo extensions.

i hope can tell me doing wrong...

thanks

welcome joomla forum!

maybe it's hard coded in template.
which template use?

could test default template (e.g. beez 20)?