Hi All, Long time listener, first time caller. I have a weird issue, I had a RB2011 some time ago which has two switch chips, 5 port Gigiabit and 5 Port Fast Ethernet. I restored it to a RB750Gr3 and aside from resetting MAC addresses and changing the WAN uplink port there was very little else to alter (they were both running the same RouterOS at the time) However, there is some remnants of the RB2011 that I can't seem to clear which is the Fast Ethernet switch config (switch2) it shows up as follows: [jim@aruma-RB750Gr3-gw] /interface ethernet switch> print Flags: I - invalid # NAME TYPE MIRROR-SOURCE MIRROR-TARGET SWITCH-ALL-PORTS 0 switch1 MediaTek-MT7621 none none 1 I switch2 (unknown) none none [jim@aruma-RB750Gr3-gw] /interface ethernet switch port> print Flags: I - invalid # NAME SWITCH VLAN-MODE VLAN-HEADER DEFAULT-VLAN-ID 0 E2 switch1 disabled auto 1 E3 switch1 disabled auto 2 E4 switch1 disabled auto 3 E5 switch1 disabled auto 4 I E6 switch2 5 I E7 switch2 6 I E8 switch2 7 I E9 switch2 8 I E10 switch2 9 E1 switch1 fallback 1 10 switch1-cpu switch1 disabled auto 11 I switch2-cpu switch2 [jim@aruma-RB750Gr3-gw] /interface ethernet switch port> There doesn't seem to be a way to remove this from WinBox and I cant seem to find an easy way to clear it from the command line, does anyone have any hints? Would I need to do a different kind of export and re-import? Kind Regards, Jim.