To anyone who has CHAT related problems.
This is what i had , and my solution is at the end of the post - take care.
Problem:
Unable to post in any channel other than guild channel.
Happened during whisper chat session with a friend , suddenly wasn't able to see my whispers , and he didn't receive any as well. Went and checked all other channels - nothing works. not /s , not general , not trade and not whispers to myself or anyone else.
Deleted shat cashe+restart = no result.
Switched off all addons , tried again = no result
Deleted entire WTF directory = no result.
/leave trade /join trade , or any other channel = no result.
/reloadui has no effect , as in nothing executes/happens
other /commands like /who work as intended.
as i understand , "reset chat" is later versions of the client , cause i can't find it anywhere.
Resolution.
I have an SSD drive , and my client runs from it. I also have a regular HDD drive , and i have a copy of my client there.
Solution is really dumb and straightforward :
1. make a backup client where everything works.
2. copy your backup over your main client.
3. enjoy working chat without spending an hour or two trying to figure how this work. :)
