New control of one server windows2008 R2, in addition to the web application, other applications can access the network, such as baidu cloud client and jingdong drumming, prompt "abnormal network connection"; Ping the domain name, prompt "could not find host", can ping the IP networks outside,

Do the following tests, invalid:
1, firewall has been closed;
2, the inbound, outbound rules, only the system default rules, there is no new added;
2, the DNS normal;
3, host file is normal;

The client login abnormal screenshot:

CodePudding user response:

If you describe is right, this kind of situation really rarely encountered, generally can open the web page, that the DNS is normal, but you can't ping DNS, ping IP can connect, that is a DNS problem,

You best in router, firewall Settings, and then use wireshark caught analyse, should be easy to solve,