Vagrant share ssh - timeout while connecting

I’ve created a vagrant guest machine on my server, installed ngrok and started the share. I didn’t allocate an IP to the guest machine.
The creation seems to go okay

==> share: You’re sharing with SSH access. This means that another can SSH to
==> share: your Vagrant machine by running:
==> share:
==> share: vagrant connect --ssh

But when I run the vagrant connect command from my client machine I get

==> connect: Attempting graceful shutdown of VM…
==> connect: Destroying VM and associated drives…
Traceback (most recent call last):
16: from /opt/vagrant/embedded/gems/2.2.18/gems/vagrant-2.2.18/bin/vagrant:231:in <main>' 15: from /opt/vagrant/embedded/gems/2.2.18/gems/vagrant-2.2.18/lib/vagrant/environment.rb:290:in cli’
14: from /opt/vagrant/embedded/gems/2.2.18/gems/vagrant-2.2.18/lib/vagrant/cli.rb:67:in execute' 13: from /Users/x/.vagrant.d/gems/2.7.4/gems/vagrant-share-2.0.0/lib/vagrant-share/command/connect.rb:74:in execute’
12: from /Users/x/.vagrant.d/gems/2.7.4/gems/vagrant-share-2.0.0/lib/vagrant-share/command/ngrok/connect.rb:162:in execute_ssh' 11: from /Users/x/.vagrant.d/gems/2.7.4/gems/vagrant-share-2.0.0/lib/vagrant-share/command/ngrok/connect.rb:89:in connect_to_share’
10: from /Users/x/.vagrant.d/gems/2.7.4/gems/vagrant-share-2.0.0/lib/vagrant-share/command/ngrok/connect.rb:165:in block in execute_ssh' 9: from /Users/x/.vagrant.d/gems/2.7.4/gems/vagrant-share-2.0.0/lib/vagrant-share/helper.rb:215:in share_info’
8: from /opt/vagrant/embedded/lib/ruby/2.7.0/net/http.rb:1241:in get' 7: from /opt/vagrant/embedded/lib/ruby/2.7.0/net/http.rb:1483:in request’
6: from /opt/vagrant/embedded/lib/ruby/2.7.0/net/http.rb:932:in start' 5: from /opt/vagrant/embedded/lib/ruby/2.7.0/net/http.rb:943:in do_start’
4: from /opt/vagrant/embedded/lib/ruby/2.7.0/net/http.rb:958:in connect' 3: from /opt/vagrant/embedded/lib/ruby/2.7.0/timeout.rb:105:in timeout’
2: from /opt/vagrant/embedded/lib/ruby/2.7.0/net/http.rb:960:in block in connect' 1: from /opt/vagrant/embedded/lib/ruby/2.7.0/net/http.rb:960:in open’
/opt/vagrant/embedded/lib/ruby/2.7.0/net/http.rb:960:in `initialize’: execution expired (Net::OpenTimeout)