IP connectivity but no domain name resolution suggests a DNS issue. Make and model of router? Change the DNS settings to point to OpenDNS ( click here )and try an IP ping, then ping using a domain name.
ie ping 184.108.40.206
Surface Pro (2017) vs Surface Pro 4
Where HTML5 is headed next
MacBook Pro v Surface Pro 5
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.