Windows error 0x80072AF9, -2147013895

Nagios NTP Time: UNKNOWN: Lookup failure for host $ARG1$ (us.pool.ntp.org)

We are currently utilizing Nagios to monitor our production servers at my workplace. Our Nagios instance is configured on a Linux server where we monitor both Linux and Windows machines. I have been experiencing the following Nagios issue regarding NTP Time for quite some time now on several of our [...] read more

Windows 10 System Wide Pauses

I have a rather serious issue on Windows 10 Enterprise 2016 LTSB 32-bit: Windows 10 Enterprise 2016 LTSB 32-bit [https://i.stack.imgur.com/1dbhO.png] On this machine an application is running 24/7 with a lot of networking going on. In total there are 14 network ports. Rarely (perhaps once a week... but sporadically, yet [...] read more

Windows Server 2016 disconnecting every hour

I have a Windows Server 2016 running a SQL Server and every hour I get several errors about connection problems. I found out that the network adapter has Lease Obtained = 2:44 PM and has Lease Expires = 3:44 PM for example, that means that I had network issues at [...] read more

GCP - Compute Instance running active directory DNS config and sometimes failure on client startup

I maintain an infrastructure with 2 Domain Controllers (DC) and other servers for Remote Desktop Services (RDS) infrastructure. The 2 DC run also DNS server for local AD domain, so on the other servers I will use the DC IP as DNS Server Address. In the RDS infrastructure there are [...] read more

no such host is known. (exception from hresult: 0x80072af9) exception when running azure device client on ARM device

I'm trying to run Microsoft Azure device client on Raspberrypi 3 device using below piece of code. when running it in local machine it is working fine, but if I deploy to my raspberry pi 3 device it is throwing "no such host is known. (exception from hresult: 0x80072af9)" I [...] read more

Register raspberry pi to azure via c#

I am developing a simple app that need to send and receive some data from azure. First of all, I have worked with a simulated device(and console app). I have configured my azure portal to work with the this data and everything works well. At the same time, I checked [...] read more

DatagramSocket throws Exception while sending to multicast group

I try to send some data to a multicast group. This worked for sometime, but now I get an exception. The Exception says that the hostname can't be resolved (HRESULT: 0x80072AF9). The hostname he tries to resolve is the ip address (224.5.6.7). This exception doesn't occurs on my Surface RT [...] read more

Can't bind DatagramSocket on "0.0.0.0"

in Win RT we have to use DatagramSocket instead of UdpClient. Ok but the following code gives me this error which I don't get on UdpClient. var g = new DatagramSocket(); g.MessageReceived += g_MessageReceived; await g.BindEndpointAsync(new HostName("0.0.0.0"), "5000"); //<--- this line *IPAddress.Any = 0.0.0.0 I get this Error: "No such [...] read more

Azure deployment with 2 websites is cycling for a long time

I'm deploying with azure in visual studio 2010 and I have this problem when I have 2 websites. With only 1 website the deploy runs sucessfully. Help!!!!!!!!! <?xml version="1.0" encoding="utf-8"?> <ServiceDefinition name="RIS2048.ConsultaClick.Web.Azure1" xmlns="http://schemas.microsoft.com/ServiceHosting/2008/10/ServiceDefinition"> <WebRole name="RIS2048.ConsultaClick.Web" vmsize="Small"> <Sites> <Site name="PT" physicalDirectory="..\RIS2048.ConsultaClick.WWWPacientes"> <VirtualDirectory name="images" physicalDirectory="..\RIS2048.ConsultaClick.WWWPacientes\imgpt" /> <Bindings> <Binding name="Endpoint1" endpointName="Endpoint1" hostHeader="pt.consultaclick.com" /> [...] read more