Hi, I've just bought RB750UP with RouterOS ver. 5.6.
I have an USB modem declared as supported on "hardware supported list"; it's correctly working on version 5.21 but not in 5.6 (USB port not listed).
Could I make something instead downgrade RouterOS to 5.21?
USB Modem ONDA MT833UP (7.2 MB): supported in both versions 5.21 and 5.6
USB Modem ONDA MT835UIP (14.4 MB): supported only in 5.21 version; in 5.6 version port not listed.