Got this issue many times while deploying this template https://github.com/brisebois/multi-geo-arm-experiment/blob/master/OnAndOff/Templates/azuredeploy-multi-geo.json New-AzureRmResourceGroupDeployment : There were not enough free threads in the ThreadPool to complete the operation. At line:4 char:1 - New-AzureRmResourceGroupDeployment -ResourceGroupName 'geoexperiment' ... - ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - CategoryInfo : NotSpecified: (:) [New-AzureRmResourceGroupDeployment], InvalidOperationException - FullyQualifiedErrorId : System.InvalidOperationException,Microsoft.Azure.Commands.Resources.NewAzureResourceGroupDeploymentCommand It seems to be a client-side issue because my deployments kept going even after the PowerShell console was stopped by this error message. <!---@tfsbridge:{"tfsId":5312297}-->