How to use two different leased lines in a single router

Apr 6, 2018
1
0
10
Greetings everyone.
We have two separate leased line at your office. One for SAP ERP purpose only and another for internet access only. The SAP ERP leased line comes through a cisco router and the internet leased line comes through a Netis WF2409E wireless router.
We are unable to use service of both the leased line simultaneously. We connect the SAP ERP leased line through LAN and access internet via WIFI, using WIFI adapter. Each time we need the service of a particular leased line, We have to change between the leased line by disabling the other manually.
It is not either possible to install another LAN card in CPU or reconfigure the cisco router. We can only reconfigure the Netis WIFI router.
Is it some how possible to use both the service of the leased lines by re-configuring the WIFI router only?
We have Windows 7 in our systems here.

A lot of thanks in advance.