I use a DIR-615 C1 Version D-Link router to connect my 3Laptops and 2 iphones at home and it intermittently disconnect from network. I had a 3.1 firmware earlier and updated to 3.12N yesterday and still face the same problem. WPA-Personal, no firewall, DHCP, channel setting tried for Band-11 and still getting disconnected. also got a message on one of the laptop that "there may be another computer in your network using same IP address". I had to check on all systems and do ip-release/renew. This product is not worth at all.
any ideas how to fix the network disconnect issue? I dont want to use the LAN ports since I dont have any PCs at home.