Login to flows.2. Click on the flow QBCust2SFAcctNF.3. In lower frame enter any random combination of letters as an AccountName (like gfdgfdgfdhfdh) and click Submit.4. Check Start (for that flow) and Auto-refresh checkboxes and click Submit.5. Wait until flow ends. If result (rightmost column) will be 1/0 - connection is OK. If it will be0/1 - connection is down.