Very, very low upload
I have a problem with my R6350 / AC1750 Smart Wifi router and especially with upload witch is about 0.5 Mb/s via the cable but via WiFi is the same situation. Download is correct. I'm quite suret that problem is with modem because without ruter speed is correct. Firmware version is v184.108.40.206_1.0.1. I made restore and hard reset by switch on back.
There is any solution or maybe router is broken. Can anybody help me?