Connect-MsolService : Unable to authenticate your credentials. Make sure that y our user name is in the format:
@ . If this problem persists, contact Support. At line:1 char:20 + Connect-MsolService <<<< + CategoryInfo : OperationStopped: (:) [Connect-MsolService], Mic rosoftOnlineException + FullyQualifiedErrorId : 0x80048862,Microsoft.Online.Administration.Autom ation.ConnectMsolService
you cannot telnet to the following IP address:
telnet 188.8.131.52 443 Connecting To 184.108.40.206...Could not open connection to the host, on port 443 : Connect failed
Make sure you can connect to 220.127.116.11 on port 443 (https) probably your company is using a proxy for access to the internet.
telnet 18.104.22.168 443
To make this possible, you can for example configure a proxy in netsh:
netsh netsh> netsh>winhttp netsh winhttp>set proxy .......