keylox23 actually Go doesn't have the ability to even connect to 5 GHz WiFi connection. At least I have been able to find a way to do it.
Try changing the channel. And no, that's not a joke. 🙂
Snapdragon 835 even has 60Ghz (not enabled in OGo), and (2x2 5Ghz) MU-MIMO, that's 2 x 5Ghz streams if your modem supports it.
Mine's on channel 44, band 80Mhz
Mind this could make it so other devices won't be able to connect to 5Ghz.
If you don't have the exact specs of all your devices it might take some trial & error to find a combination that works and doesn't have too much interference from other signals, ie neighbours' modem.
the OGo specs you can find here: https://www.qualcomm.com/products/snapdragon-835-mobile-platform
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EDIT: I wrote all that before reading your whole post 🙂
About speed caps, you're not gonna download faster than what your storage is capable of. I don't know exactly what it is in the OGo.
Streaming however should be able to go faster until the memory buffer is full.
You're also not gonna get the full speed of the device specs, there's a lot of stuff going on, especially when you're downloading straight to (unbuffered) HDD's
I've never measured the download speed to the storage of an OGo, but I sure didn't feel like it was only 28Mbps. (Using local FTP server and OGo webbrowser.)
When you see download speeds constantly drop and then spike, drop again, etc. That's just your buffer filling up. faster than the data is being written away.
Or sometimes even your CPU not being able to keep up (ie Celeron, phone/tablet). Best to check Task Manager (ctrl+shift+esc) which one it is.
Or even when copying. I'm sure this is one many people have seen. At the start of copying it's going blazing fast, then drop off.