Not sure where to ask

[Odaxis]

Have a friend I cannot trade online with. The trade option is there but greyed out as if that person was busy when they are not.

I can battle and O-Power with them but not trade. They, in turn, see the same thing when trying to trade with me.

When accessing the trade application directly in PSS instead of going through the friend connection I can get the option to trade with them but it fails almost immediately stating they are not available for trade.

Any ideas on what could be causing this?

TLDR: Both online, Both not busy, Can battle and O-Power but not trade.

[supercarotte]

Did you try erasing him from your friend/amie list ?

Note his Friend Code somewhere, erase its card then launch the game and go online. He should no longer appear in your friend list, if he's in the second list (people you traded/battled with) then click on his face then on the bottom left icon to erase it too.

Save the game, quit, add him again to your friend list, launch the game and connect to the internet (when your friend is online). Tell us if that changed something.

(You can also launch the game on another console, it will completely wipe your PSS lists)