Router mode pwede TS. Login ka muna kay boosteven tpos disable mo Cellular mode dun sa Internet tab. Then sa Home Network tab, palitan mo Lan IP Address, instead na 192.168.1.1 pwede mo gawing 192.168.2.1, tpos keep mo lang na naka-enable yung DHCP Server. Then sa Router tab > Advanced Settings > Router Mode > Set to Enabled then WAN Connection Mode lagay mo Ethernet only. After nian save mo ung settings. Lastly, kabit mo yung ethernet cable from your main router thru the LAN port papunta sa boosteven, kabit mo naman sa WAN port nia. To check if may nakuhang IP from your main router si boosteven, check mo lang ung Ethernet WAN sa Internet tab. Sana nakatulong