Recently on my PS3, I can’t sign-in to PSN even though I can browse internet -_-”
The message keeps saying that it’s a DNS error.
I do what some solutions suggested, which is to switch DNS servers.
Instead of using DNS servers automatically assigned by my ISP, I logged into my router and set the two DNS addresses to the ones by OpenDNS:
After turning my PS3 off and turning it back on, I can sign-in to PSN immediately. It works X)
(You can apparently change the DNS settings on PS3 only, but I do it on my router – which means all my devices with automated settings connected to my router will use the new DNS servers once they reconnect to the router)
I even think my Internet has gotten faster now… probably a placebo effect ^^;