The default gateway for a network should bean IP address within the subnet, butnot the broadcast address
. In this case:
* IP: 192.163.1.15
* Subnet Mask: 255.255.255.0
* This means thenetwork rangeis: 192.163.1.0 - 192.163.1.255
* 192.163.1.255 is thebroadcast addressfor this subnet, so itcannot be used as a gateway.
Hence, the device fails to communicate outside its subnet because it's trying to use abroadcast addressas its gateway.
#The issue is clearly with thegateway configuration.