Help setting up replication between Windows servers

In addition, your syntax is wrong. You are missing braces between members.

[ Edited to illustrate my comment above posted from my tablet ]

As you have seen:

mongo > rsconf={_id:"cbre",members:[{_id:0,host:"localhost:27017",_id:1,host:"10.71.101.187:27017",_id:2,host:"10.71.136.191:27017"}]}

gives the following value as you posted

mongo > rsconf
{
	"_id" : "cbre",
	"members" : [
		{
			"_id" : 2,
			"host" : "10.71.136.191:27017"
		}
	]
}

So you only have 1 object in the array members. And since you cannot have 2 fields with the same key in a single document you end up with a document that contains the value of the last occurrence of a key. What you really wanted, (with the correct bracing) is:

mongo > rsconf={_id:"cbre",members:[{_id:0,host:"localhost:27017"},{_id:1,host:"10.71.101.187:27017"},{_id:2,host:"10.71.136.191:27017"}]}
{
	"_id" : "cbre",
	"members" : [
		{
			"_id" : 0,
			"host" : "localhost:27017"
		},
		{
			"_id" : 1,
			"host" : "10.71.101.187:27017"
		},
		{
			"_id" : 2,
			"host" : "10.71.136.191:27017"
		}
	]
}

But the above will still be wrong despite having the correct syntax because

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