Last week the ISP introduced a new policy. The traffic leaving the ISP network gets blocked, if there is no active DHCP lease for the sender IP. As the result, the RV042 v3 in my care loses Internet connection every few hours. In the same time the traffic inside the ISP network works perfectly fine. The DHCP leases should be renegociated every 20 minutes. It seems the RV042 stops doing so at some point. The system log does not hold the DHCP negotiation entries, as it did in v1 series, so I can not tell, where exactly the problem is. In any case, there seems to be something wrong with DHCP in the v4.1.1.01-sp firmware.