We just had an Aiphone IX system installed. We assigned static IPs to all the devices. We have a Samsung tablet and phone that we use to control the gates or speak to people when they push the intercom.
I have verified that the tablet and phone are set to Static. Every day each of those devices changes the IP address. We set it in the morning and later in the day they get a new IP.
Note: Our DHCP has a scope of 50-200. The IPs we have assigned are above 200. One suggestion that we have not tried yet is to create a Reservation for those two devices. Any thoughts on this?
I have discussed this with 4 technicians and all of them state that if an IP is assigned as static it can only be changed manually.
We have been researching this with the company that installed it and with Aiphone. No one can figure this out.
So my question is how is it possible for the IPs to be changing? I know that it is not being done by anyone. The devices are turned on in the morning and just sit on the desk until someone comes to the door or pushes the intercom. Any ideas will be appreciated.