“I’ll be working on it for the next few hours” is different than “I’ll be working for a few hours today but have not identified root cause yet so I can’t say how long the fix will be”
“The update will come in September or consider the project abandoned” vs “I want to have the update out by the end of September but can’t guarantee any timeframes until I’m further along in the work”
“It should be back up in a few hours” vs “I’ll update everyone again once I’ve identified the issues and am working towards a clear resolution”
I’m not asking for more work or more communication, just honest communication.