I'm unclear from other posts in this forum whether my combination is currently supported, but here it is :
SkySafari Plus 126.96.36.199 on Android 8.1.0
SkyWatcher Star Discovery WiFi AZ Go-To Mount
The mount sets itself up as an access point with default gateway IP 192.168.4.1
I've tried using Auto-Detect SkyFi - didn't connect.
I've tried switching off SkyFi and using IP 192.168.4.1 with port 4030, and with port 11882 (based on responses to other posts)
I've tried using IP 127.0.0.1 with port 11882
No luck with any of these.