This Forum Beta is ONLY for registered owners of D-Link products in the USA for which we have created boards at this time.
So, whenever I try to update my router's firmware to the beta versions both 2.20B01_BETA and 2.20B01_BETA1 it never works it either sometimes says 500 Internal Server Error o usually Firmware Upgrade Failed! (I'm currently using 2.05b02) when I downgrade to older versions or reflash the firmware version that I'm currently using then it always succeeds.