wireless bonding issue

hi all, i got problem with rate throughtput using bonding on wireless. specificly i have 2 unit RB600 with 2wlan each other. and it working with bonding. the issue is why i dont get max throughtput by using bonding.

if i`m using 1 wlan for PTP , i can get 20-30mbps (bw test using udp)

but if i`m using bonding 2 wlan, i still got 20-30mbps (each wlan only have 10mbps throughput), is that supposed to be 40mbps ? why i only get half if it bounded

very thx before

maybe You have made bounding and set iti to be for backup link.

Best regards Remus

i set it to balance-rr not active backup