Linux CLI errors - DNS and credentials issues

Hi,

We have started to experience two error types recently (in the past month). They appear randomly and quite often, and they are affecting our operations in a negative way. I searched the internet for similar issues, but couldn't find any significant information. I'm hoping someone here could help. We are using Azure version 0.8.5

ERROR 1 seems to be related to DNS:

00:00:14.62363 ^[[0mLaunching command /usr/local/bin/azure vm list  --json 2>&1^[[0m
00:00:17.6766 ^[[0mCommand output: Array
(
    [0] => getaddrinfo ENOTFOUND
    [1] => Error information has been recorded to azure.err
    [2] => vm list command failed
    [3] =>
)
Return status: 1

azure.err doesn't hold much more info:

{ [Error: getaddrinfo ENOTFOUND] code: 'ENOTFOUND', errno: 'ENOTFOUND', syscall: 'getaddrinfo' }
Error: getaddrinfo ENOTFOUND
    at errnoException (dns.js:37:11)
    at Object.onanswer [as oncomplete] (dns.js:124:16)

ERROR 2 is related to credentials/subscription:

14:34:25.52073 ^[[0mLaunching command /usr/local/bin/azure vm show <MACHINE_NAME>--json 2>&1^[[0m
14:34:26.23581 ^[[0mCommand output: Array
(
    [0] => There is no current subscription. Please use the azure login command to set your current subscription.
    [1] => Error information has been recorded to azure.err
    [2] => vm show command failed
    [3] =>
)
Return status: 1

azure.err shows this trace:

[Error: There is no current subscription. Please use the azure login command to set your current subscription.]
Error: There is no current subscription. Please use the azure login command to set your current subscription.
    at Profile._.extend.getSubscription (/usr/local/lib/node_modules/azure-cli/lib/util/profile/profile.js:176:15)
    at VMClient._.extend.createComputeManagementClient (/usr/local/lib/node_modules/azure-cli/lib/commands/asm/vm/vmclient.js:1482:55)
    at VMClient._.extend.getDeployments (/usr/local/lib/node_modules/azure-cli/lib/commands/asm/vm/vmclient.js:1315:40)
    at VMClient._.extend.showVM (/usr/local/lib/node_modules/azure-cli/lib/commands/asm/vm/vmclient.js:185:10)
    at AzureCli.<anonymous> (/usr/local/lib/node_modules/azure-cli/lib/commands/asm/vm._js:82:14)
    at AzureCli._.extend.execute (/usr/local/lib/node_modules/azure-cli/lib/cli.js:188:12)
    at AzureCli.Command.action (/usr/local/lib/node_modules/azure-cli/node_modules/commander/lib/commander.js:235:8)
    at AzureCli.EventEmitter.emit (events.js:126:20)
    at AzureCli.Command.parseArgs (/usr/local/lib/node_modules/azure-cli/node_modules/commander/lib/commander.js:405:12)
    at AzureCli.Command.parse (/usr/local/lib/node_modules/azure-cli/node_modules/commander/lib/commander.js:351:15) 

Thanks,

Marius