metal2shpn&grove A2hn

sometimes i have problem loging in to metal2shpn&grovea 2hn through lan port using mac adress acculty devices are not dicovred by winbox via lan port where as they are discoverable through wlan port.

secondly how much tx power should be set in metal2shpn to achieve maximum performance and how much dbi/watts antenna should be. i have tried using d-link and lanbowan 15dbi omni and secter antena with metal2shpn but it does not perform properly ccq level is very weak. this is a serious problem for me becouse i dont have avialable other brands antena in my country. people are very disappointed with this products and want solid solutions to there problems and i get lot of complaints from my customers because as i am reseller and i want to import compatible antennas for metal2shpn &grove A2hn


can anyone help?