Comment on Roku explores taking over HDMI feeds with ads
Petter1@lemm.ee 5 months agoIf tv is talking home using ip directly, DNS blocking will not work. You have to ether disconnect tv from your network or give the tv a static ip and block all traffic to and from WAN (internet) from that device Update tv manually using USB stick.
mortrek@lemmy.ml 5 months ago
Reply to old reply, sorry. Technically blocking the IP isn’t perfect either. In theory, as long as it has the wifi credentials, and your wifi has access to the internet, your TV will be able to access the internet if it really wants to. All it’d have to do is ignore the IP assignment or fake/change a MAC address during DHCP. I don’t know why a “legit” TV would do this, but if you get some unbranded Chinese thing, or if any wifi device wants to be malicious, it can bypass DHCP+IP filters very easily.