ça vient de la box qui refuse de lui allouer une ip.
Question, avez-vous tous le filtrage MAC actif sur vos box? Si oui, désactivez le filtrage.
Sinon:
Too many multicast addresses specified
NW-31200-6 Timeout occurred (indicates a protocol timeout unlike EAGAIN) // Failed to update the system software due to connection error // Step 1: If you have access to a PC, follow these instructions to update your system software using a USB device. Step 2: If you don't have access to a PC, try Internet connection test at [Settings] > [Network] > [Test Internet Connection] and make sure you can connect to the network. Step 3:If you are able to connect, retry updating at [Settings] > [System Software Update]. Step 4: If you're unable to connect, the network may be experiencing issues. You can check the status of the PSN here. Turn off other devices that are connected to your network to reduce stress and try the update again.
Source: http://psdevwiki.com/ps4/NW