Sony’s PlayStation network is suffering massive outages. (Hannibal Hanschke/Reuters)

Portal 2, Mortal Kombat and SOCOM 4 were all released for the PlayStation 3 this week, making the downtime all the more frustrating for gamers.

In a blog post Thursday, Sony said that it is investigating the issue but that it could be “a full day or two” before the company can get the network back up to full strength.

Users have been reporting problems connecting to the network since Wednesday night.

Some had speculated that Anonymous, the loosely affiliated hacker group, was responsible for the outages. The group declared war against Sony over the company’s lawsuit with accused hacker George Hotz. Anonymous has said that it is not responsible for the most recent downtime. The group had promised to stop attacking the PlayStation Network to avoid affecting Sony customers.

It’s not clear whether the PlayStation Network outage is being caused by an outside attack or whether it’s due to other usage or maintenance problems. But this outage — along with the Amazon server outage that brought down a lot of Web 2.0 services yesterday — does remind users that although cloud services make our lives easier, they have their downsides, too.

Related stories:

Sony settles with PS3 hacker

Amazon server problems disrupt HootSuite, Reddit, Quora, Foursquare

Anonymous will stop PlayStation Network attacks