Sony Playstation 3 (PS3) Console "mobile dns failed" Questions

DNS server. I hope to understand the DHCP issue better before trying workarounds. Any ideas? wonderful! that's always a good thing to hear - sometimes it is the "make sure you're power cord is plugged

...DNS addresses but none work. I now get as far as the PS3 picking up the IP address but then failing to get an internet connection. The router and PS3 get switched off regularly and it still doesn't ...