hello every one i have routerboard 2011 downgrade to v5.26 but he does not work again it working in stable cant read interface and i try to restart default configuration but it Remained no interface can show i need to run in os v5.x can you help me
RB 2011 work witch RouterOS 6+, you can’t use 5.x.
Best Regards
Krzysztof
2011 was originally shipped with the 5.x versions so it should work with 5.26. Make netinstall and flash correct fw afterwards. Shut down and cycle the power.