Can not connect to system when using DNS in LHC+
i have a project that using HomeWorks Illumination. the system is connected to a LAN that using IP Public so we can access it from outside of the house, the IP is registered on a DNS provider. When i try to connect to system from my phone, i can connect and access it, but when i try from owner's phone it can not connect to the system, and its also happen when i try using my friends phone, only my phone can connect to the system.
for your information, it is different when all of phone connect to the Wifi of the house, all phone can connect to system.
Any idea ? Thanks.