primeiramente tentem os comandos a seguir

ipconfig -release
ipconfig -renew
ipconfig -flushdns
ipconfig -registerdns
nbtstat -rr
netsh int ip reset all
netsh winsock reset

Feche o Prompt de comando.
Reinicie o computador e verifique se o erro persiste.

se não resolver, tente trocar as DNS
Google Public DNS IP addresses

The Google Public DNS IP addresses (IPv4) are as follows:

8.8.8.8
8.8.4.4
The Google Public DNS IPv6 addresses are as follows:

2001:4860:4860::8888
2001:4860:4860::8844

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