If you want to have more connections to your wallet, think about running your wallet as a full node please. (If not already running as full node)

"full node" means that you allow outbound connections to other nodes (wallets) for sharing your local copy of the blockchain. This supports/stabilizes the network and increases the trustworthy of the blockchain.
But for running your wallet as a "full node" you must either enable UPNP in your router and your wallet or you can manually open the port 16281 in your router.

You can click on the bar chart with the number of connections (right lower corner) in order to view the details of your connections. If you have outbound connections you have a full node.
Or if your total number of connections is much more then 10 (e.g. 18 or 35) than you mast have full node too.