Hi anybody. I need to use the RouterOS version 6.36.1 for the mmips architecture used on the RB750Gr3 router. The reason is that I need to emulate a remote system configurated as a BCP bridging (PPP tunnel bridging) that have this OS, before upgrade with a version 6.42.1
My problem is that one routers is not possible to access phisically. I have true FEAR if router can be hanged!! and I will try to upgrade a pair of routers on my labo. Problem: The RouterOS 6.36.1 for mmips is not listed on Mikrotik’s dwonload. How can download it?
Can anyone help me? Thanks in advance.
Miguel.
Did it even exist? RB750Gr3 might not be that old. Oldest mmips version in https://mikrotik.com/download/archive is 6.37.1.
Yes. It exists.
You can see on image
that is true. That’s the problem. I don¡t know if when I do the upgrade to 6.42.1 I can lost connection, hang and walk 4 km to a high mountain! 
I continue find…
Regards.
https://ibb.co/md0tjS
This info is taken via SNMP, is not static text..
Ok, you’re right. But the oldest version I can find anywhere now is 6.36.4:
https://download.mikrotik.com/routeros/6.36.4/all_packages-mmips-6.36.4.zip
Ok, Sob. Thanks a lot for your replys. I will try to downgrade my routers and after upgrade with 6.42.1 (current) version.
Regards!