What type of password are you using?

Can you try limit it with 20 chars, and no special charracter such as ^ % >

Password is very simple, no special characters. this is the line that throws error,

[11/3/2018 10:04:52 AM] INFO: Assembly to resolve: C:SolidCPPortalbinSolidCP.EnterpriseServer.Client.XmlSerializers.dll
[11/3/2018 10:05:04 AM] ERROR: Authentication error
System.Web.Services.Protocols.SoapException: System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Net.Sockets.SocketException: No such host is known
at System.Net.Dns.InternalGetHostByAddress(IPAddress address, Boolean includeIPv6)

Password is very simple, no special characters. this is the line that throws error,

[11/3/2018 10:04:52 AM] INFO: Assembly to resolve: C:SolidCPPortalbinSolidCP.EnterpriseServer.Client.XmlSerializers.dll
[11/3/2018 10:05:04 AM] ERROR: Authentication error
System.Web.Services.Protocols.SoapException: System.Web.Services.Protocols.SoapException: Server was unable to process request. —> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. —> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. —> System.Net.Sockets.SocketException: No such host is known
at System.Net.Dns.InternalGetHostByAddress(IPAddress address, Boolean includeIPv6)

Is it a failure to get the host name from host file?  I do have any entry in the host file though.

When I installed 3 separately, Enterprise, ASP.Net and Portal there was no error in installation. However, browsing to the site still gives the following error
System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Net.Sockets.SocketException: No such host is known
at System.Net.Dns.InternalGetHostByAddress(IPAddress address, Boolean includeIPv6)

Please look at this Detail in your Error :

System.Net.Sockets.SocketException: No such host is known
at System.Net.Dns.InternalGetHostByAddress(IPAddress address, Boolean includeIPv6)

Check your DNS settings, he cannot resolve your host i think, i have installed solidCP the last 2 month to find out how all working and i have never a problem when i use the Stand alone install option.