Last week worked my old DWL-810+ Wlan Bridge (cost 60 EUR 6 years ago ) not any more. Yesterday I bought a DIR-615 H1 W-Lan Route for 15 EUR. Today I refresh the firmware with DD-WRT v24 PreSP2 Build 21061and set it as a Repeater-Bridege. It work fine.
Wiki about config as Repeater-Bridge: http://www.dd-wrt.com/wiki/index.php/Repeater_Bridge