Hi I just want to echo this issue It is exactly happening on our MSKC as well. our MSK is 3.6.0 and MSKC 3.7.x and this periodic AdminClient Node disconnect -1 and MSK Connect graceful shutdown is seen every 6mins as you mentioned. Currently we rollback the MSKC back to 2.7.1 But need an explanation by AWS. Thanks for sharing this issue. so I can tell I am not along.