Yes flashing power LED can have only two reasons. Either it cannot not obtain a IP address from the DHCP server or it cannot connect to a DNS server. If you use fixed IP for the RRC then the problem can only be the DNS connection. Check the status page it will probably tell you that DNS is the problem. If you do not know the DNS IP Google DNS 8.8.8.8 works in most cases. You can also activate DHCP and let the RRC find out all the IP settings from the DHCP server, then you can decide to store the settings and use fixed IP
73 de mike