Why can't I post or reply?

I can’t reply in any post. Why is this? My account has been around for like ever and I just changed the name

Is it reply, or post in general on anything other than tech and bug report? It is entirely possibly you need to link your account.

Most likely this is due to you updating your information - Battle.net will need a bit to re associate your new battletag with your console account. If you continue having problems for more than 24 hours, check this post.

There it is. The bump worked. Lol. I was looking for the link, thank you.