I haven't ever had any problems with any AAUI transceiver. It's literally just an Ethernet cable with special ends. The two-port EtherWave ones are sort of weird, but really, it's just wired up as a hub.
It's also a bad idea to use a hub these days, so take that for what you wil. A couple of old Macs that you just want to chain together for whatever reason will probably not suffer that much.
I have connected my 6100 to the gigabit Ethernet ports on my CenturyLink/Qwest branded Actiontec VDSL2 modems with no problems. (I have also connected an Asante EN/SC Micro on the back of my PowerBook 180, both directly to the modem, and through the EtherWave on the 6100, with no troubles.)
The real problem with some networking kit begins with (usually) third party Ethernet cards and adapters that contain live equipment (Hubs, etc) that did not properly conform to Ethernet standards. So it probably depends on which particular machine or Ethernet adapter you used. The solution there tends to be to just connect those devices to a hub, through an Etherwave (heh) or to a 10/100 or 10-megabit switch.
Also, it is of course possible to just get non-working AAUI adapters, in the same way that an Ethernet cable can go bad.
It's also a bad idea to use a hub these days, so take that for what you wil. A couple of old Macs that you just want to chain together for whatever reason will probably not suffer that much.
I have connected my 6100 to the gigabit Ethernet ports on my CenturyLink/Qwest branded Actiontec VDSL2 modems with no problems. (I have also connected an Asante EN/SC Micro on the back of my PowerBook 180, both directly to the modem, and through the EtherWave on the 6100, with no troubles.)
The real problem with some networking kit begins with (usually) third party Ethernet cards and adapters that contain live equipment (Hubs, etc) that did not properly conform to Ethernet standards. So it probably depends on which particular machine or Ethernet adapter you used. The solution there tends to be to just connect those devices to a hub, through an Etherwave (heh) or to a 10/100 or 10-megabit switch.
Also, it is of course possible to just get non-working AAUI adapters, in the same way that an Ethernet cable can go bad.