I’m using my RPI 3B as a media server (running OSMC-Kodi 18.5 and NTFS 1TB drive connected). RPI connects to the internet via Wi-Fi and the speed of it is really slow. Connection supposed to be 100mb/100mb (tested with PC and phone using Speedtest.net and they both reached max). While using RPI Speed Tester add on (it seems provided by Speedtest.net) speeds are not climbing more than 10mb/s (basically less than 10%).
When copying files (to and from) the speed is more or less around 1-2MB/s and time to time (than trying to copy bigger files) I’m getting messages that error occured and cannot copy file into RPI
any ideas where I should look for a problem?