The first version of the Asante EN/SC was announced in October 1990, with shipping promised for December 1990. At the same time, Asante were making NuBus and various PDS ethernet cards.
The OSI standard for autonegotiation of 10BASE-T etc was announced in 1995.
Assume that anything designed before 1995 (which may include products manufactured in later years) may not autonegotiate. Asante were an early adopter of 10BASE-T so the problem is common with their older cards. However, I have seen similar glitches with cards from other manufacturers.