Happened to me a few times as well when I forgot to switch off my VPN when on CB.
The moment I shut the VPN off, I was able to talk again.
Although, I have heard many others having the same issue as you did
@angryoldllama . Being randomly blocked and not on a VPN.
@punker barbie will this be ongoing with the random IP blocks? Will we have to keep contacting support to be unblocked?