A few things to look into :
Also if possible, maybe choose the general help channel for this kind of topic rather than the News and Annoucements.
I can connect to SQL DB from excel, power Bi, crystal report. only power apps i can't. i think there is some thing in power apps. I have checked all what you mentioned but still can't connect.
Is this the same problem that you posted here?
If you're using the on-premises gateway, here are some things to try.
Class of 2020- Season 2
Featuring samples like Return to the Workplace and Emergency Response Applications
We're excited to announce our first cross-community 'Can You Solve These?' challenge!
Features releasing from October 2020 through March 2021