Why I can't use open wifi

[AC Question]

I have no problem with wifi on my Samsung galaxy S4. I can use it at home (with my own network) and also outside anywhere with open network (eg. no wifi password required). I don't know why I have been unable to use any open network any more (wifi at home is still good). Weird? any idea?

 

[Tim1954]

Using open WiFi is a great way to get malware or your device hacked... Maybe some security setting trying to save you from yourself...

 

[Laura Knotek]

Are you sure that these WiFi networks still don't require you to sign in by agreeing to their terms? For instance, if I want to use WiFi in Walmart I get a notification in my notification bar asking if I want to sign in to Walmart's network and have to agree to use the WiFi.

 

[vietvovi]

yes, they have their term agreement. I was asked to tick that agreement and I already did. As I said, it used to be good but I don't know why I have been unable to access to it any more.

 

[Laura Knotek]

What happens if you delete that network from your saved networks and try to add it again?

 

[vietvovi]

I haven't done that. I will give it a try to see how it goes.
I installed AVG and I think it did something in settings to prevent me from accessing public network? I uninstalled AVG but the problem is still there. I think I have to reset the phone though it's very annoying to back up contact list, notes and other stuff.

 

[Laura Knotek]

Please let us know if forgetting and re-adding the networks helps, or if factory resetting your phone helps.