I have observed that my IP address 59.93.xxx.xxx is changing very often. I have noticed that in a 12 hour window the IPaddress changed as many as 17 times. I have a plain 4 port Ethernet switch connected to the switch with a DMZ configured on the router. For my application to run properly on this DMZ the IP address cannot change this often. Once every 6 hours is OK.What I see is that the some time ip address changes 3 to 4 times in a minute.Any suggestions on how I can hold on to an IP address for longer period?I notice that BSNL is NOT honoring the 23hours:59mintutes setting on the UT300 - UTstarcom Modem and Router.Thank you.