I decided to try out Cloudflare's DNS service (1.1.1.1). As the Comcast gateway 
will not let the user change the DNS settings in it, I plugged a router into 
the gateway and input Cloudflare's addresses into it. For added measure, I also 
set the WiFi connection from the Android to the router to use a static IP 
address and also manually input the same DNS' for the connection. In using the 
router, I am losing IPv6. The router supports it, but I was not able to 
establish a successful IPv6 connection with it.

The speeds via an Ethernet connection from the router did not change using 
1.1.1.1, although I noticed a 10% increase in both download and upload speeds 
via WiFi, using both Ookla's Speedtest app and the speedof.me web site. Prior 
to this - connecting directly through the Comcast gateway but also using 
Comcast's DNS' through the router, the phone displayed download speeds of 
50Mbps and upload speeds of 11Mbps. Using 1.1.1.1 via WiFi, I am now seeing 
download speeds approaching 56Mbps and upload speeds approaching 13Mbps, via 
the same app and web site. This is all via 2.4GHz.

It is possible that just by changing the DNS service, it resulted in this 
increase in WiFi speeds?
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