I cannot Sign in to the iTunes Store

I'm getting those exact same messages and for some reason I can't sign in on my iPhone 5 either, yet I'm able to access the store.

I'm having the same problem. I think it's something on Apple's end. I think we'll need to be patient until Apple figures it out.

Same for me on Mac. Definitely an issue with their login protocol.

I have the exact same problem:

We could not complete your iTunes store request. An unkown error occured (-50).

There was an error in the iTunes store. Please try again later.

We could not complete your iTunes store request. The network connection could not be established.

There was an error in the iTunes store. Please try again later.

It's not a Windows problem. I'm using a Macbook Pro, Intel Core i5, OS X 10.7.5

I've noted that itunes has for some time failed to automatically download TV shows that I have purchased as a season. New things come spontaneously only rarely, and when I "check for available downloads" I get nothing, but if I manually look the show up, episodes are nevertheless available to download. This problem above however, is more severe and I have only seen this today ( April 16, 2013).

There are dozens of threads about the topic, so suggests that it's beyond a few people. It crosses platforms and operating systems. Patience is all you can do.

Windows 7...same problem. Even had problems on my iPhone 4s loging in with my apple id.

(windows 7 64bit) have the same problem, same message, just started this afternoon, its a problem with itunes, tried everything, reset router, setting in windows, uninstalled itunes and reinstalled, reset passwords, and windows system restore, disabling anti virus, etc... just have to wait till they fix the problem.

I am having the same issue with signing into my iTunes account. I can access the store itself but when you try to sign in, up pops the error message (-50). Yet, I can sign into my Apps Store iTunes account on my Mac? It is accepting my password there and showing my account and credit amount?

I had the same problem too signing in with my apple id on itunes windows for the past hour. it kept telling me there was an error on connection with itunes store or something like that. i went to control panel & clicked on Itunes repair & whoa, it worked! now i can sign in & look at my purchases with no problems! 🙂

ahh ***** 😟 it suddenly stopped working! i was in the middle of downloading all my purchases from iphone to windows & it said there was a connection error again. so frustrated!