Hello, We have got Telephony device connected to usb0 interface with my Linux embedded system. This Telephony device doesn't have DHCP Server. Using connman API, we are setting static route and nameserver information. With the logs we can very well verify that connman accepted this new values but reverting this value soon. Note: Telephony device has been given highest priority in the connman service order list. Also using log I cannot see service order changing is happening. Basic steps: My application is setting below properties. Listening for the change from connman. In case connman is reverting this change, application is setting back to static values. For "nameserver" we are setting " Nameservers.Configuration" property For "route" we are setting " IPv4.Configuration" property (Method, Address, Netmask, Gateway) Result: 1) When application is setting "nameserver", for entire lifecycle connman is clearing the value and My application is setting it back. This is going in loop. -If application is writing static nameserver to "resolv.conf" file directly. We are not observing any issues. - What will be side effect in case application is directly writing to resolv.conf 2) When application is reading " IPv4" property, if "method" is not "manual" then setting " IPv4.Configuration". Application is checking this on SERVICESCHANGED and PROPERTYCHANGED signal from connman -usb0 interface is getting added and removed by connman continuously ==> connman Log " usb0 {add} route" & " usb0 {del} route" is continuously coming - This is causing state change to "configuration" -> "idle" -> "ready" Do you know reason for this issue? Are we consuming connman APIs in wrong way? Thanks in advance. Best Regards, PriyaranjanS This message contains information that may be privileged or confidential and is the property of the KPIT Technologies Ltd. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message. KPIT Technologies Ltd. does not accept any liability for virus infected mails.