Personal Gateway Not Reachable

That's odd considering your image shows that it knows that your gateway is online. What type of source is "75PROD"?

Your best best may be a frowny face to support. It is the smiley face icon in the upper right. It allows you to describe the problem and take a screen shot. I have had VERY GOOD success when using this feedback mechanism. I generally receive a very timely reply from the support team.

Microsoft appears to be aware of the bug. I sent in a feedback request and got this message from Microsoft:

Hi!

Thank you for your technical inquiry. Data refresh is actually a known issue we are experiencing and we expect to have it resolved within the next 24-48 hours. We appreciate your patience as we get this ironed out.

Please let me know if there is anything else I can help assist you with!

Thank you!

Jenny

I have the same issue, strange thing yesterday the scheduler was working fine, till i have reinstalled the powerBIgateway.

Same Problem, with both local files and external data sources....

Any fix yet?

I'm still waiting on a fix. Anybody having any luck yet?

I have the same issue... with Azure SQL DB

Same Issue here with SQL server... 

I have the same issue

Getting the same issue with csv file on a shared network drive (X), while the same file from the system drive (C) is working fine. I contacted support via the smiley feedback system, waiting for a reply now.