Netgear GS105 - not connecting multiple computers

So go google fibre----->google mesh---->then your switches. 

Most ISP's only assign 1 public ip address or even 2 (rarer to have multiple public ip addresses). So it could be assigning 1 to the mesh and the 2nd to your computer. If they're only allowing 2, that'd cause your issues. Versus your mesh will take that public ip address and assign the devices on your network a private ip address. Plus its more secure as the mesh is using its firewall to help with network security.