Route Table takes forever to show up in cli

### **This is autogenerated. Please review and update as needed.**

## Describe the bug

**Command Name**
`az network route-table list`

**Errors:**

Taking from 15-30 mins to show up -- its causing my data elements to fail and I can not make this work in a consistent fashion. The setup shows that in the GUI it comes up -- I tried logging out of az cli and relogging clearing session. Out of ideas, its frustrating cause the automation on provision does not run consistently.

## To Reproduce:
Create a new AKS cluster with kubenet routing

- `az network route-table list -g {}`

## Expected Behavior

`az network route-table list` should return whats in the GUI -- It does not.

## Environment Summary
```
Windows-10-10.0.20180-SP0
Python 3.6.8
Installer: MSI

azure-cli 2.14.2

Extensions:
azure-devops 0.18.0
desktopvirtualization 0.1.0

```
## Additional Context