I have a BX-DM1E-18ED23-D that for some reason gets and error light then when looking in net edit it shows as a bx-m. I can connect to it thru domore designer and and see that is has errors but i didn't write them down so i can't post right now. It seems to happen when power is cycled. Sometimes power cycling will fix it. I upraged the OS to 2.9.9 yesterday but it did it again this morning. Next time it happens i will post the ST number for the error.
The Rack is BX-DM1E-18ED23-D then first slot BX-HSIO1, Then BX-ND3