Vulnerablity on netgear WNDAP360

Its a new access point which we purchase last month and we had a internal audit the security manager found the below vulnerablity, Can some one please help us to configure the following configurations Netgear WNDAP360 access point.

• Change Default Simple Network Management Protocol (SNMP) community strings in use
• Disable SSL 2.0 Deprecated Protocol in Use while login as admin (https:\\netgear AP IP Address)
• Enable SSL Certificate Chain Contains RSA Keys to 2048 bits in Use while login as admin (https:\\netgear AP IP Address)
• Disable SSL RC4 Cipher Suites Supported in Use while login as admin (https:\\netgear AP IP Address)
• If we open (https:\\netgear AP IP address) using https we geting Certificate invalid warning message how do I fix these issues.

Thanks in advance for valuable reply,

M. Muhammed Iliyas.