Strange problem from wifi

[b]SOLVED !

[/b]I watch configuration and see this mistake:
set service dhcp-server shared-network-name WLAN subnet 192.168.3.0/24 dns-server ‘193.168.3.1

it happens… repair edit, everything is working fine

I have a some problem from wifi, I installed my apu2 and everything works well, but when I plug my tablet into the wifi network and get an address from the dhcp server,
I can’t get to any website, the connection works well just don’t can show web pages… as if there was not connection,
if I set static ip for wifi all goes without a problem and works nice.
Other devices on the LAN going through dhcp are okay, everything works well. I have never had such a mysterious problem, I do not understand it…

Is there any advice or help with this?

thank