Use ether10 port on RB1200 to connect to Netinstall and make sure RB1200 is in the same broadcast domain where the Netinstall PC. Hi becs you are right, I connect the ethernet cable in the ethernet 10 port of de RB 1200 and netinstall working, I can install the router os 5.11 archives on the RB 120...

I know that the RB 1200 don´t work with the router os 4.x, and I know that I need reinstall using netinstall, in my post say that, but my problem is when conect serial cable and use hyperterminal the hyperterminal say error CHECK ETHERNET CABLE / ETHERNET LINK ABSENT, and I try upgrade firmware with...

Hello I have a RB 1200 that originally carried the version 5.x of the Router Os, but to test with another version of the Router Os gave him donwgrade to the version 4.17, and since do not have access to the RB; I have looked for informacion in the forum and now I know that the donwgrade in this case...

In my case too install him the version 4.17 to my RB 1200, already did the process with Netinstall for reinstall the version 5.11, I format the Nand but the system on hyperterminal show me a ethernet link error, can you help me please?

sorry for my english