Same issue here, and no answer from razer support...
fastRubyzone350
Hey all,
I'm currently trying to connect my Razor mouse pad and Microphone to Razor Synapse but for whatever reason I can't get it to pick up the devices even though they work perfectly fine. I've tried uninstalling the drives and reinstalling. Anyone have any ideas?
Hey there! Thanks for posting your Razer Synapse-related concern here. Please check your devices if whether they're compatible with Razer 2.0 or 3.0 by clicking the link below:
•
Razer Synapse 2.0 compatible devices
•
Razer Synapse 3.0 compatible devices
Feel free to send me a PM should you need additional assistance.
Razer.SpeedCr0ss
Hey there! Thanks for posting your Razer Synapse-related concern here. Please check your devices if whether they're compatible with Razer 2.0 or 3.0 by clicking the link below:
• Razer Synapse 2.0 compatible devices
• Razer Synapse 3.0 compatible devices
Feel free to send me a PM should you need additional assistance.
i have a basilisk v2 and it still doesnt work
KGard_4
i have a basilisk v2 and it still doesnt work
Please check for any duplicate driver of your mouse driver in the Windows device manager. Please check it in the highlighted sections below:

If there's any, retain the mouse driver in the mice and other pointing device section only. Else, perform the step on this
link. Let me know if it helps.