A firmware update is definitely required!  There is a vulnerability to Port 7547 which allows the device to be hijacked for DDoS attacks - I can port scan my modem from my mobile or a web utility and it shows that this port is already OPEN! (of course I have not opened it).   See this article:   https://securityintelligence.com/mirai-evolving-new-attack-reveals-use-of-port-7547/   I was told by TPG tech that I would have to chase this issue up with Archer - which I will do but I am registering my concern here so others will know about the problem.   Phil. ... View more