Access Swith on bridge2 from Bridge1

Hi

I have an RB4011G and 2 bridges
bridge 1 PC LAN IP 192.168.0.1/24
Bridge 2 VoIP LAN IP 192.168.100.1/24

I can ping from 192.168.0.xxx to 192.168.100.5 BUT not access the webpage of switch …except when i am connected on the same network as the switch ie. 192.168.100.xx.

Tried disabling all Firewall rules with no success
Disabled Mangle ruels i have with no success ..

needed to add rule to be able to connect to switch ?

Thank you