For accessing matrix web configuration, follow below steps.
Step 1 : Open any browser enter IP address : 192.168.1.101
Step 2 : A notification page would display as page not secured ( Click proceed at below and continue )
Steps 3 : Login to system engineer. Default System engineer login password is 1234
Step 4 : Set new password for system engineer login.Thats it
If you have any doubt , kindly put it in comments below we would try to clear your doubts.