Hello everyone!
I have a x86 computer running routeros 2.9.38.
I have two 3c509 cards but i can only use one.
I tried loading the driver , but it cannot load it twice 
Does anyone know how to fix this ?
You have something wrong with PCI slot or one of the cards. I have several machines with 4-6 3c905 cards and Mikrotik and all works fine.
Gregor
3c509 or 3c905 ? i think there are both … the 905s being the most common later on. probably an irq conflict or bad card.
As I recall the 3c509 is an ISA 10Mbps card, and the 3c905 is a PCI 10/100Mbps card. VERY VERY different. If you are using ISA cards, it is likely that only one will work. If you are using the PCI cards, both should work fine.
Ok…i have two ISA 3c509 cards…
I have tested and removed one of them and put in a PCI card , now the 3c509 card and the PCI card work…
but now i got another problem:
I have one ISA 3c509 card left and one PCI Intel Pro 100/10 but i can only use one at the time , when i try to enable the two cards , it says: action failed (6) and it doesn’t work with the setup wizard either…
if i disable the ISA card i can use the PCI , and i can disable the PCI and use ISA.