Try setting a static IP instead of using DHCP.
In RC2 there is a known issue with the DHCP client as per Issue with connman in OSMC RC1 & RC2 - #20 by DBMandrake
Try setting a static IP instead of using DHCP.
In RC2 there is a known issue with the DHCP client as per Issue with connman in OSMC RC1 & RC2 - #20 by DBMandrake