Private network (my own)
And I take it that you did the manual PS3 network setup using the OpenDNS IPs, right?
If right now you are surfing the internet from your home then your ISP's DNS server are up and running. If they were down you would not be able to surf the internet by typing domain names [e.g. http://community.us.playstation.com] but only by IPs http://126.96.36.199 [This community IP address]
If you are still getting DNS errors with your ISPs then try other DNS IP server. If DNS IPs from OpenDNS IPs or Google's public DNS IPs are notworking for you then some how you managed to block port 53 UDP for your PS3. Port 53 UDP is the port/protocol used for DNS queries. Have you been messing with port forwarding and/or blocking services at the router level?
Yes, at one point Sony told me to go into port forwarding settings and mess around with a few ports. Should I set up port forwarding for port 53?
Normally you don't have to do this. What I really wanted to know is if you had unknowingly blocked DNS access to your PS3s static IP. Anyways, yes, go ahead and forward port 53 UDP to your PS3's static IP. Apply the change and note the test results.
If still this doesn't work do connect your PS3 directly to the modem, not the router. See if you can connect normally to the internet this way. Btw, is your modem just a modem or is it one of those combo modem/router boxes?
I tried the dns is you listed and no affect. My connection at home, wired and wireless are fine.I have not messed with any settings on my modem. I have a single box from Comcast that functions as a modem/router
Edit: Bdev I do not know if you have comcast. Essentially what I had to do was restore my all in one to factory default and reset up my network so other wireless computers could get on. Once I had hardwired my ps3 back in it was detected and worked. Somehow the modem/router was blocking my ps3 and the only way I found it since it was hidden was by setting it up as a static connection and saw it was blocked. Was aggrivating as hell since it wasn't listed as a blocked device.