Its been affecting everyone on the network for over 24 hours now. Its been speculated that some three letter agency is responsible, due to the scale of the attack. If you’ve noticed any issues with your i2pd or similar software, this is why.

Update: A megathread was made on reddit for the situation: https://www.reddit.com/r/i2p/comments/1qvalmq/megathread_ongoing_attack_on_i2p_network_causing/

Some users suspect that this attack is somehow an attempt to try and deanonymize users, and it is recommended that you cease use of the network for now. Though i cant personally confirm or deny these claims.