Hello @ShotokanZH ,
May be you have an idea about another issue with ax3600. When mesh is activated I cannot set wifi 6 ports ( DFS channels 52-140) . I get this error message :
DFS channels (52-140) can't be selected when Mesh mode is on
I have the same issue with ax3600 global version( main router) Israel as a region and ax1800 (mesh node) with China as region ( no other option ) . Is your script should work in this case too?