It’s possible for your receipt printer to lose network connectivity at times. This should happen very rarely, but it can happen.
When it does, your cash drawer won't open and receipts and other chits won’t print.
To fix this, just turn the receipt printer off, wait a few seconds, and then turn it back on. This will typically resolve the issue.
If it does NOT, please contact Brandibble support so we can help you troubleshoot.