I am using Red Hat Version 7.6.

-unname -a

3.10.0-1062.4.3.el7.x86_64 #1 SMP Tue Nov 12 10:42:40 EST 2019 x86_64 x86_64 x86_64 GNU/Linux

I have successfully registered my system, but, am unable to to get any subscriptions assigned to it.

I have tried the following several times and none of it seems to help. Any assistance would be greatly appreciated.

The system was registered as follows.

subscription-manager register --username (login-id) --password 'password' --auto-attach

subscription-manager repos --enable="rhel-7-server-rpms"

This system has no repositories available through subscriptions.

subscription-manager list --available --all

No available subscription pools to list

yum repolist all

This system is registered with an entitlement server, but is not receiving updates. You can use subscription-manager to assign subscriptions.
repolist: 0

subscription-manager attach --auto

Installed Product Current Status:
Product Name: Red Hat Enterprise Linux Server
Status: Not Subscribed

Unable to find available subscriptions for all your installed products.

yum check-update

This system is registered with an entitlement server, but is not receiving updates. You can use subscription-manager to assign subscriptions.
There are no enabled repos.
Run "yum repolist all" to see the repos you have.
To enable Red Hat Subscription Management repositories:
subscription-manager repos --enable
To enable custom repositories:
yum-config-manager --enable