4 ms·
Personally I've never encountered a device (as opposed to an AP) that didn't work with DFS channels. There's certainly some devices (cheap WiFi light bulbs, or
by Reason077 4y ago
Personally I've never encountered a device (as opposed to an AP) that didn't work with DFS channels.
There's certainly some devices (cheap WiFi light bulbs, or anything really old) that don't support 5 Ghz at all, but any 5 Ghz device I've ever used found my DFS AP just fine.
5 Ghz WiFi bandwidth is really severely limited without DFS. If you're using an 80 Mhz channel then you're using almost the entire available non-DFS bandwidth, overlapping/conflicting with nearly all other nearby non-DFS networks. But with DFS there's room for 7 non-overlapping 80 Mhz channels!
- sidewndr46 4y agoYou must just not be looking. It was standardized in 2003. Anything before that isn't going to have it. Even "new" products aren't going to have it mandatorily. I have laptop from 2013 that is 2.4 Ghz only for example.
- Reason077 4y agoYes, of course there's plenty of old 2.4 GHz-only devices around. But in my experiences, devices (but not all APs) which support 5 GHz WiFi tend to support all 5 GHz bands, including DFS bands (channel > 48) just fine.
- kccqzy 4y agoTell them to millions of disappointed customers of Roku TV.