I have 30 mbps down and 10 mbps up from Cincinnati bell, so the 2.4 GHz network should not be a bottleneck to my wireless speeds. I can verify that I have these speeds with any wired connection in my home. With my LG G3 VS985 running JasmineROM on android Lollipop, I get around 4.5 mbps down and 5 mbps up while on my 2.4 GHz network, but get 29 mbps down and 10 mbps up while on my 5 GHz network. Both of these tests take place right next to my router, so interference shouldn't be an issue. I also made sure to put my router on the best channel with the least amount of interference using a wifi analyzer tool. My laptop however gets the same 29 mbps down 10 mbps up results whether it's on the 5 ghz network or the 2.4 ghz network. Using this and the fact that interference isn't an issue, I definitely know that my router is not at fault for my issue. I'm not sure why my G3 would have these kinds of issues with 2.4 GHz networks, as it only started doing this around a month ago. Any help would be appreciated.