I’ve read through the posts here, about the incompatibility of the Surf Soho USB and the Max Adapter 5g.
ref: Surf SOHO MK3 and Max Adapter 5G with answer from @charliet
What is the incompatibility? Is it inadequate power on the MK3 USB port or is it a software issue? If it’s a power problem, would a small powered USBC hub solve the problem?
Clint