Sony Bravia KD-65X9005B Manual page 216

Apps are inaccessible.
Check that the LAN cable or AC power cord (mains lead) of the router/modem* has been
connected properly.
* Your router/modem must be set in advance to connect to the Internet. Contact your Internet
service provider for router/modem settings.
Try using apps later. The app content provider's server may be out of service.
Some applications in [Apps] are not available./Disappeared from [All Apps].
Perform [Factory Settings] to restore the TV to the factory setting. Press the HOME button, then
select [Settings] →
[Yes].
The TV cannot access the Internet when IPv6 is set.
IPv6 may not be available, in which case set IPv6 to off. Press the HOME button, then select
[Settings] → [Network] → [IPv6 Set-up] → [Set up IPv6 connection] → [No].
© 2014 Sony Corporation
[System Settings] → [General Set-up] → [Factory Settings] → [Yes] →
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