Suggest you determine what wifi channel you are operating on. Also what the WiFi environment looks like around your place. In my view you should use your dongle to change the wifi channel to one of either 1,6,or 11.
Get you an app on your PC or cell phone that will scan the WiFi environment and report out what is going on. Then report back.
Wes, Southport NC
EXos2-GT PMC-8, iExos 100
ES ED 127, 10" LX200GPS+wedge, Astro-Tech 8" Newt, ETX-90, 60mm no-name guide scope ~ 260mm FL
Polemaster, Orion ST-80 and SAG, ZWO 290MM, D5300 astro modified
Nina, Bootcamped Mac Mini control computer, RDP to iMAC
110 amp hour lead acid deep discharge battery for field power
Electrical Engineer, Retired