VLAN on bridge problem

I made a simple test , its like this :

main ROS (PC):
vlan1 on eth1 , vlan1 ip=192.168.3.1/24
dhcp1 on vlan1

rb01(RB333) connected to main ros through eth1 :vlan1 on eth1
wlan1 ap-bridge
bridge1 = wlan1+vlan1
eth1 ip = 192.168.3.10/24

i connected to rb1 wlan1 with a PC wirless card .

now i can do the following:
1-getting ip from dhcp1
2-ping from my PC : gateway , DNS , any web site , etc ..
2-ping rb01 from main ros or any other pc connected to it
what i cant do :
1-any kind of internet browsing !!!

please i need help here its so urgent !!!

It looks like having a problem with mtu, try to adjust mtu at lower size.

Regards.

Faton