@TP-Link The cameras are from Reolink, the models are RLC-520-5MP and RLC-410-5MP. PoE injectors are from Dexlan, model is PSE101-30 is I remember correctly. I reboot MR6400 using tether, not the web...

@TP-Link The topology is this one : Tl-MR6400----POE injectors—IP cameras? (I was talking about the 4 ports switch inside the router) The cameras are always powered-on. In fact this is a surveillance...

Hello all, i actually face an issue with my 4G router after a few weeks without any problem. On boot everything is ok, but after a while it looses all dhcp clients connected on the integrated switch....