Experimental: private-networks doesn't allow webui to load

#### Version information:

#### Description:
Followed https://github.com/ipfs/go-ipfs/blob/master/docs/experimental-features.md#private-networks, except for adding a bootstrap node, and I can't seem to load the webui. It just spins forever until it times out.

I run:

```
❯ ipfs init --profile server

❯ go get github.com/Kubuxu/go-ipfs-swarm-key-gen/ipfs-swarm-key-gen
❯ ~/go/bin/ipfs-swarm-key-gen > ~/swarm.key
❯ ln -s ~/swarm.key ~/.ipfs/swarm.key

❯ ipfs bootstrap rm --all

❯ ipfs daemon
Initializing daemon...
go-ipfs version: 0.7.0-ea77213
Repo version: 10
System version: amd64/darwin
Golang version: go1.14.12
Swarm listening on /ip4/10.8.1.9/tcp/4001
Swarm listening on /ip4/10.8.1.9/udp/4001/quic
Swarm listening on /ip4/127.0.0.1/tcp/4001
Swarm listening on /ip4/127.0.0.1/udp/4001/quic
Swarm listening on /ip4/192.168.0.107/tcp/4001
Swarm listening on /ip4/192.168.0.107/udp/4001/quic
Swarm listening on /ip6/::1/tcp/4001
Swarm listening on /p2p-circuit
Swarm announcing /ip4/127.0.0.1/tcp/4001
Swarm announcing /ip4/127.0.0.1/udp/4001/quic
Swarm announcing /ip6/::1/tcp/4001
API server listening on /ip4/127.0.0.1/tcp/5001
WebUI: http://127.0.0.1:5001/webui
Gateway (readonly) server listening on /ip4/127.0.0.1/tcp/8080
Daemon is ready
```

Is a bootstrap node required?