Modules partially not responding

[majudev]

Hello, I have 22S configuration on V400 modules and ESP8266 controller. I keep getting lost packets, but I guess this was to be expected with such a long chain. However, they are dropped do badly, that I see no cells in manager GUI. If anything loads at all, it's the last 6 cells (first 16 don't load, but the rest does). The issue didn't happen before, and modules are already inside assembly that's hard to open, so I'd be grateful for debugging tips.

[stuartpittaway]

This will be caused by electrical interference, keep the cables short between modules (using twisted cables) and especially the last cable back to the controller - this is often the source of the problem.

[mucahitdemir]

Using twisted cable presumably solves the problem.