I've had my S4 for 2 weeks now and I've read through the entire forum and several others. I think I know what the problem is, but I'm looking for some validation. I try to use Wifi to save on data. All the networks I use require passwords, but they're not encrypted. EXCEPT my home network is encrypted because hubby works in the health care field and he has a layer of security needed to comply with federal laws. I have a hard time connecting to the Internet and even using some apps at home. I can't update apps. I can't view many web pages. Even FB and Twitter give me a hard time. If I use the other networks (my own work, friends' home networks, my favorite coffeehouse haunts), I don't have these problems. Is it plausible that our home encryption is interfering with the Samsung security that came with the S4 and now 4.3? I can still get email, upload photos, and get some access to apps, but it's limited. From what I'm reading on here, I'm not the only one. What I haven't found is a work around. Has anyone found a solution? Thanks in advance!