Brewfather connection timeout.

[Naesstrom]

Tried the brewfather connection, added my ID and API

At first it says connected on the configuration page:

But after a while I get error messages:

Error ETIMEDOUT: Error: connect ETIMEDOUT 151.101.65.195:443 : https://api.brewfather.app/v1/batches?status=Planning&limit=1

Trying to refresh batches at Brewfather I get the following error in the corner:
SyntaxError: Unexpected token E in JSON at position 0

[inspectaclueso]

I experienced the same issue. I believe it may relate to lose of internet connectivity after starting node-red service. Brand new Pi 4 (4Gb). Followed instructions. Could see the dashboard at http://gfconnect:1880/ui and I successfully setup the Brewfather API and the Pushover notifications. Next day when I booted the Pi I could not connect to a Wifi network so I did a fresh install. Now, I have done about 6 fresh installs trying different things but I now lose internet access as soon as I start node-red service. If I use the command node-red-stop, my internet access resumes immediately. Because I lose internet connectivity I am unable to get the Brewfather API or Pushover notifications working again?

[clausbroch]

It sounds like you have a basic connectivity issue with your Raspberry Pi if it cannot connect to your network.
The GF Connect flow doesn't control network connections, so probably something is wrong with your Node RED installation if it indeed blocks the internet connection.
Just out of curiosity, how do you issue the node-red-stop command? Do you have a keyboard and monitor attached to your Pi?