WAN configuration on Cisco RV016

Need some clarification.  From your original note, you have two WAN connections.  Are trying to use these in a load-balancing configuration or are you trying to use them for failover?  When you say that you want to use any WAN but stay on that WAN until a difference connection, I'm not understanding what you are trying to do?

I´m using as load balancing.  
For example, explaining better : WAN1 ip 200.200.200.300 and WAN2 ip 200.200.200.400. So, if i´m using my bank online the IP must be the same while i´m using it. If the connection starts with ip of WAN1 and in the midle of the access changes to ip of WAN2 the connection was blocked by the bank.

Okay, any internal routing protocol or just using default/static routing?

Just default.

Jose, could you post the configs of both the WAN interfaces please?

Interface :       WAN1
WAN Connection Type :       
Specify WAN IP Address :       
186.228.xxx.yyy
Subnet Mask :       
255.255.255.248
Default Gateway Address :       
186.228.xxx.zzz
DNS Server (Required) 1 :       8.8.8.8
2 :       200.184.xxx.14
MTU :       Auto

-----------------------------------------------------

Interface :       WAN2
WAN Connection Type :       
Specify WAN IP Address :       
200.152.xxx.yyy
Subnet Mask :       
255.255.255.0
Default Gateway Address :       
200.152.xxx.zzz
DNS Server (Required) 1 :       8.8.8.8
2 :       200.152.xxx.5
MTU :       Auto

thanks

np

Cheers