RV130 router : Unable to modify LAN subnet mask

Hi every one,
I'm using a cisco router RV130, which runs the latest firmware (1.0.1.3), and when
I set an IP address to the LAN interface, I can't choose the subnet mask greater than /24.
The scrolling list proposes only these values :
255.255.255.0
255.255.255.128
255.255.255. .. and so on to 255.255.255.252
The issue is that the customer's lan address is 172.17.0.0/16 (255.255.0.0)
Any clue ?
Thierry

Please see the attached Word Document for how to create a case online. Please make sure your CCOID is associated with the Product and/or the contract. This will prevent any issue when creating a case. If there is an issue with the association, the 1-866-606-1866 number will put you in touch with the people to assist in the association to your CCOID. Hope this helps.

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