Unable to monitor mongos (query router) in a Sharded Cluster Deployement

[rohitreddyjd]

Hello,
My current test mongoDB deployement is a MongoDB cluster with 3 shards and each Shard has 3 replicaSet members. It also has a 3 query routers (mongos) processes. I specifically want to monitor two actions -- connect (to check connectivity) and connections (to monitor number of connections).
I am able to monitor these actions on all the individual mongod processes (version 3.6 on CentOS). i.e i am able to monitor connect and connections actions on individual shards (both primaries and secondaries), also on config servers (config server replica set members). However, i am unable to monitor the same on mongos processes (Query Routers).

Does this plugin allow monitoring Query Routers (mongos) proceeses?

Mongodb Version :- 3.6
OS version : CentOS 7.5
Connection Check Command
./check_mongodb.py -H mongos1.10gen.net -u monitor_usr -p monitor_pwd -P 27017 -A connect -a admin

When i run the above command, i get the following error message
CRITICAL - General MongoDB Error: there are no users authenticated

the user i am trying to connect has clusterMonitor role. But i also tried elevating the privileges to root and still encountered the same issue.

Any help is greatly appreciated.

Thanks & Regards,
erythroidd