Hi Alex,
Connection issues are more related to your computer and the Steinberg Remote component.
You can go through all the items of Cubase iC Pro’s troubleshooting: https://www.steinberg.net/en/support/knowledgebase_new/show_details/kb_show/cubase-ic-pro-troubleshooting.html
In your case, I’d suggest you to restart your Cubase first and try again.
Perhaps your network is already downloading or uploading something in the background and therefore the connection hangs more than it should.
There are a few threads already on this forum, I invit you to read them.
If it still doesn’t work then just create a new thread with the description of your problem and what you’ve already tried to do.
Cheers,