I can't obtain an ip address to my Android smartphone from my wifi router. Observations:
The smartphone connection to other routers or thru cellular data is ok.
My router's wifi connection to my PC is ok.
Wifi link to the smartphone was ok till recently.
Security on or off doesn't make a change.
Router is TPink WR541 v7. Firmware upgrade did't help.
Problem persists with 802.11g or b.
Message on the Smartphone: "Obtaining IP address from [My Router'a Name]". Then "Disconnected"
Message on the router's syslog: "0334:DHCPS: 1:[PHONE's MAC ADDRESS], NAK in request."
Would be grateful to receive your help. Best Regards, Joseph.