@safsss You can download the firmware from the link below and don't forget to extract the Zip file....

@debecha No you need to connect Ethernet Cable from Archer C6 to Deco M4 to give internet connection and then you can connect the other Deco M4 unit over Wi-Fi.

@safsss Maybe your Deco S7 is provided by your ISP which is using ISP Customized Firmware.

@martinroveda Yeah there is a problem in Deco App with many Deco models sometime Deco App showing deco units offline but in actual they are working fine.

@martinroveda How much Deco BE25 units are you using? Have you tried to use Deco M5 as satellite deco unit and then tried to connect Ezviz Camera? If not you can try this and i hope this will resolve...

@olawi You can try this beta firmware which can resolve many connectivity issues on different ISP's around the world. You can download the beta firmware from the link below and install it directly...