Model : TL-WR841N

Hardware Version :

Firmware Version : 3.16.9 Build 160419 Rel.48988n

ISP : FIBERTEL

Hi. I have problem with TL-WR841N v11.0. By default it has IP 192.168.1.1, but I need the range 192.168.0.1 to be able to connect a DVR to which the IP CAN NOT be modified.
On the router, enter the LAN / LAN, change the range (192.168.0.1), save and reboot the router with the assigned IP range. I control DHCP and it has been modified correctly. But ... within 2 days maximum the router resets the IP range that comes by default (192.168.1.1) but not the rest of the router configuration.
The firmware of the router is 3.16.9 Build 160419 Rel.48988n which is the last one published on the web.
The router is connected to a FIBERTEL MODEM in "Bridge mode", the data is as follows 152.169.211.44 / 255.255.255.0 / 152.169.211.1
I would like to evacuate all the possibilities before having to take it to the RMA and lose 1 week.
From already thank you very much.
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