I’ve been working on integrating my industrial equipment with Home Assistant using the Modbus binding, and I must say, it’s been quite a journey! Initially, everything seemed to work smoothly, but after a few days, I noticed that the connection would drop periodically, especially when writing to digital outputs. This was frustrating because it disrupted my automation workflows.After some research and trial and error, I discovered that the issue was related to network settings. It turned out that my router had a firewall rule that was blocking the Modbus TCP traffic after a certain period of inactivity. To resolve this, I adjusted the firewall settings to allow continuous communication on the required port.Here’s a quick rundown of what I did:- Checked Network Firewall: I reviewed my router’s firewall rules and noticed that the Modbus port was being blocked after periods of no activity.- Adjusted Firewall Settings: I updated the firewall to allow persistent communication on the specific port used by Modbus.- Restarted Services: After making the changes, I restarted both the Modbus binding and the industrial equipment to ensure the new settings took effect.The result? Stable communication ever since! It’s a relief to have my equipment integrated without hiccups. This experience taught me the importance of regularly checking network configurations, especially when dealing with industrial protocols.If anyone else is experiencing similar issues, I’d recommend checking your network settings and ensuring that all necessary ports are open and allowed continuous traffic. The Home Assistant community forums were also a huge help, so don’t hesitate to reach out there for support!Thanks to everyone who contributed to the Modbus binding and for the helpful discussions in the community. It’s amazing how a little tweaking can make such a big difference!