i tried to upgrade my rt-ac68u from the previous merlin (version prior to version 378.56_2). After the upload, i rebooted the device manually (maybe I did it the wrong way by unplugging the power cord instead of just pushing the on/off button. Now I ended up with no internet, no wireless signal and a power led that goes on and off slowly. Is this something that is easy fixed doing a firmware restoration or is there another way to get my router back alive. I read about holding down wps button while powering off and on. Should i reinstall the official Asus firmware or can I go with the previously working merlin one