Internet not working on SZ100 and AP R700

[abdullah_zia_76]

on initial setup of SZ100:

1 port group
IP address 192.168.1.101
subnet 255.255.255.0
Gateway 192.168.1.1 (DSL Internet Modem)
Primary DNS 8.8.8.8
Secondary DNS 192.168.1.1 

AP connected to port 2 of SZ100:
Ip address 192.168.1.50
subnet 255.255.255.0
Gateway 192.168.1.1

Port 1 of SZ100 is connected to switch and switch is connected to internet modem 
Test wlan is created at controller but every device is stuck on 
"obtaining ip address"

no device is able to get ip from test wlan.


please help me with this situation.

[abdullah_zia_76]

I need to add DHCP server credential on the SZ100 and at which tab I have to add these credential???

[abdullah_zia_76]

Tell me by default Wlan is on Vlan1 or I have to enable it under common settings
if by dhcp using Vlan1(default vlan)


further more under network settings the default gateway should be ip address of the DHCP server?

kindly provide answers