I am pleased that you finally have the option of an ethernet card on your Mico.
I am surprised that the Mico has the same problems as the Omega though. The explanation from Desk about the Omega is that it is because of the higher 'internal speed' showing up the 'underlying' problems in the RO4.03 internet stack.
However the Mico CPU is clocked at the same speed and has similar performance to a RiscStation machine. I was under the impression that networking worked fine on a RiscStation under RO4.03 why then not on the Mico?