THVD1426: Device not responding after some time

Part Number: THVD1426

Tool/software:

Hi Team,

I have been trying daisy chain an RS485 with the THVD1426 as it has auto direction control. My Baud is 57600. Now the protocol is successful but there is some failure of about 3% I would say. At some point, some of the device stops responding and I think the transceiver is getting locked up due to some condition. Because If I do a power cycle it starts working fine. Any suggestions ?