My environment.

• iPhone7(MNCV2J/A) 256GB
• iOS 11.4.1
• OSC Version 2.4(5)

Problem

When Wi-Fi using, Application is unstable. Logging in is unable and quit suddenly. Without Wi-Fi using, I succeed in logging in.
Upploading data is too slow. But without Wi-Fi, I can upload data smoothly.
When W-Fi using, everything is slow and unstable.