Can't connect to server (7) for SEARCH FUNCTION ONLY

[maikku]

Hello, 
I have a Samsung UNU8000. 
I can download/install apps, but I cannot SEARCH for them.

Every time I select a character for the search, I get the error message

"Unable to connect to the Samsung server. Check your network settings or try again later. (7)"

I have reset literally everything: TV, smart hub, router, changed DNS on TV, changed DNS on router, reset everything after changing network settings on TV and router. 

I have tried both wired and wifi. 

I have checked my Samsung account and see the device online there. 
I have created a new Samsung account to no avail. Checked the account and saw the device listed in the new account. 

I have checked for Updates on TV and router. 
I have no custom firewall rules. 

Again - TV gets internet. I can stream. I can download select and download apps, but I cannot SEARCH for them. Pretty annoying to scroll through the hoard of apps that aren't in alphabetical order to find the app I want to download. 

Thanks in advance for your help!

[LongHiker]

@maikku Does your router filter any web requests? If so, it may have the site used for the search on it's blocked list. If you can turn that off, I would give it a shot. 

[msgribble]

You may need to contact your isp and ask about ap isolation is in the firewall and may help when turned off not really sure.