I have not been able to log into multiplayer on Crysis 3 for literally weeks now. At first my internet was having issues, I thought this was the cause. However that has all been resolved. My router and internet were reset so some settings may have been changed but I do not know which ones are important.

The internet works everywhere else on my PS3, browser, PS store and other games. But I cannot, for the life of me, start up multiplayer, it gets as far as the loading screen and always cops out at 'Initialised Challenges'. Then "an error occurs" and I return to the main menu without ever seeing the multiplayer menu.

Please someone help me! I have UnPn available, Nat type 2, etc. I just cannot establish a connection to the Crysis network.

Thank you in advance.

i take it you have no issues whith MP on other games .
Have you run a speed test ,if not then i advise too, when this is done post results ,till connections are proven not to be the cause ,its hard too help ?