Le ha pasado a varios, es poque ejecutas el archivo .bat de la carpeta dualserver, pero como ya esta el servicio haciendo eso mismo, te dice que el puerto está en uso, no hace falta lanzar el .bat, olvidate de eso porque el problema estará en otra parte; elimina el log y reinicia el equipo y el deco; despues vuelve a poner el log aqui.
14-Sep-17 22:23:06] Client 192.168.0.15, txsat.info A resolved from Cache to 188.143.80.17
[14-Sep-17 22:23:07] Client 192.168.0.15, rs12.fcnoip.org A resolved from Cache to 213.152.164.144
[14-Sep-17 22:23:07] Client 192.168.0.15, masryn.ooguy.com A resolved from Cache to 104.171.127.27
[14-Sep-17 22:23:07] Client 192.168.0.15, z2.fcnoip.org A resolved from Cache to 213.152.164.142
[14-Sep-17 22:23:07] Client 192.168.0.15, s1.freeskysatuk.tv A resolved from Cache to 195.154.48.18
[14-Sep-17 22:23:07] Client 192.168.0.15, 1221d.bongulu.com A resolved from Cache to 91.134.149.182
[14-Sep-17 22:23:07] Client 192.168.0.15, masryn.ooguy.com A resolved from Cache to 104.171.127.27
[14-Sep-17 22:23:07] Client 192.168.0.15, txsat.info A resolved from Cache to 188.143.80.17
[14-Sep-17 22:23:07] Client 192.168.0.15, rs12.fcnoip.org A resolved from Cache to 213.152.164.144
[14-Sep-17 22:23:07] Client 192.168.0.15, masryn.ooguy.com A resolved from Cache to 104.171.127.27
[14-Sep-17 22:23:07] Client 192.168.0.15, z2.fcnoip.org A resolved from Cache to 213.152.164.142
[14-Sep-17 22:23:07] Client 192.168.0.15, s1.freeskysatuk.tv A resolved from Cache to 195.154.48.18
[14-Sep-17 22:23:07] Client 192.168.0.15, ru256.cserver.tv A resolved from Cache to 212.129.6.153
[14-Sep-17 22:23:07] Client 192.168.0.15, txsat.info A resolved from Cache to 188.143.80.17
[14-Sep-17 22:23:08] Client 192.168.0.15, 3d2b2cye.spybox.info A resolved from Cache to 212.129.6.153
[14-Sep-17 22:23:08] Client 192.168.0.15, 1221d.bongulu.com A resolved from Cache to 91.134.149.182
[14-Sep-17 22:23:08] Client 192.168.0.15, rs12.fcnoip.org A resolved from Cache to 213.152.164.144
[14-Sep-17 22:23:08] Client 192.168.0.15, masryn.ooguy.com A resolved from Cache to 104.171.127.27
[14-Sep-17 22:23:08] Client 192.168.0.15, z2.fcnoip.org A resolved from Cache to 213.152.164.142
[14-Sep-17 22:23:08] Client 192.168.0.15, s1.freeskysatuk.tv A resolved from Cache to 195.154.48.18
[14-Sep-17 22:23:08] Client 192.168.0.15, txsat.info A resolved from Cache to 188.143.80.17
[14-Sep-17 22:23:08] Client 192.168.0.15, iexufoh3.cserver.tv A resolved from Cache to 178.32.89.251
[14-Sep-17 22:23:08] Client 192.168.0.15, 1221d.bongulu.com A resolved from Cache to 91.134.149.182
[14-Sep-17 22:23:08] Client 192.168.0.15, rs12.fcnoip.org A resolved from Cache to 213.152.164.144
[14-Sep-17 22:23:08] Client 192.168.0.15, masryn.ooguy.com A resolved from Cache to 104.171.127.27
[14-Sep-17 22:23:08] Client 192.168.0.15, z2.fcnoip.org A resolved from Cache to 213.152.164.142
[14-Sep-17 22:23:08] Client 192.168.0.15, s1.freeskysatuk.tv A resolved from Cache to 195.154.48.18
[14-Sep-17 22:23:08] Client 192.168.0.15, txsat.info A resolved from Cache to 188.143.80.17
[14-Sep-17 22:23:08] Client 192.168.0.15, 1221d.bongulu.com A resolved from Cache to 91.134.149.182
[14-Sep-17 22:23:09] Client 192.168.0.15, rs12.fcnoip.org A resolved from Cache to 213.152.164.144
[14-Sep-17 22:23:09] Client 192.168.0.15, masryn.ooguy.com A resolved from Cache to 104.171.127.27
[14-Sep-17 22:23:09] Client 192.168.0.15, z2.fcnoip.org A resolved from Cache to 213.152.164.142
[14-Sep-17 22:23:09] Client 192.168.0.15, s1.freeskysatuk.tv A resolved from Cache to 195.154.48.18
[14-Sep-17 22:23:09] Client 192.168.0.15, s1.freeskysatuk.tv A resolved from Cache to 195.154.48.18
[14-Sep-17 22:23:09] Client 192.168.0.15, txsat.info A resolved from Cache to 188.143.80.17