The WiFi access point is quite far from my desk so the signal is very unstable. It is a bit tricky, but possible to setup an intermediate access point with Raspberry Pi and another router. My Raspberry Pi 2 does not have WiFi onboard

RPI3 has build-in WiFi, RPI2 can be easily extended with WiFi adapter. Such adapter can be configured to connect to access point or act as access point itself. There is the good instruction on the Raspberry Pi website[1] on how to create access

Installing Go on Raspberry Pi is very simple. First, download and unpack the Go package $ wget https://storage.googleapis.com/golang/go1.8.3.linux-armv6l.tar.gz $ sudo tar -C /usr/local -xzf go1.8.3.linux-armv6l.tar.gz $ export PATH=$PATH:/usr/local/

Connecting Raspberry Pi to the WiFi network is very easy if the adapter is supported by the Raspbian. If it is not, the module that brings specific support to the Kernel should be installed. The adapter that I've got is Edimax EW-7811UAC AC600 dual-band