Error logs just show that the dm lost its DHCO reservation. It¡¯s got to be something wrong with the actual chassis.
I have swapped in my okd dm8x8 chassis and am even using the dm16x16 cpu card (had to send restore to the dm to get it to see itself as a 8x8 with the 16x16 cpu card. Amd it¡¯s running a ootly for two days now