A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
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Exception Details: System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SNI_PN11, error: 26 - Error Locating Server/Instance Specified)
This error is usually caused by a HTTP connection error when attempting to connect to the remote machine. The solution relies heavily on what the actual HTTP error is, please contact support with the full message.
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One bit of easy guidance here is that if you can't use Negotiate authentication, you really really should be using HTTPS with verifiable certificates. However if you are just trying to get off the ground with local Vagrant boxes and you find yourself in a situation getting WinRM Authentication errors but know you are passing the correct credentials, please try running these on the remote machine before inflicting personal bodily harm.
Windows remote communication tends to be easier when you are using domain accounts. This is because domains create implicit trust boundaries so windows adds restrictions when using local accounts. Unfortunately the error messages you can sometimes get do not at all make it clear what you need to do to get past these restrictions. There are two issues with local accounts that I will mention:
One thing that has previously tripped me up and I have seen others struggle with is related to authenticating local users. You may have a local user (not a domain user) and it is getting access denied errors trying to login. However if you prefix the user name with './', then the error is resolved. The './' prefix is equivelent to '\'. Note that the './' prefix may not work in a windows login dialog box. In that case use the host name or IP address of the remote machine instead of '.'.
This does not apply to the built in administrator account. So if you only logon as administrator, you will not run into this. However lets say I create a local mwrock account and even add this account to the local Administrators security group. If I try to connect remotely with this account using the default remoting settings on the server, I will get an Access Denied error if using powershell remoting or a WinRMAuthentication error if using the winrm gem. This is typically only visible on 2012R2. By default, the winrm service is running on a newly installed 2012R2 machine with an HTTP listener but without the LocalAccountTokenFilterPolicy enabled, while 2008R2 and client SKUs have no winrm service running at all. Running winrm quickconfig or Enable-PSRemoting on any OS will enable the LocalAccountTokenFilterPolicy, which will allow local accounts to logon. This simply sets the LocalAccountTokenFilterPolicy subkey of HKLM\software\Microsoft\Windows\CurrentVersion\Policies\system to 1.
Lets say you want to access a UNC share on the box you have connected to or in any other way use your current credentials to access another machine. This will typically fail with the ever informative Access Denied error. You can enable whats called credential delegation by using a different type of authentication mechanism called CredSSP. This is only available using Powershell remoting and requires extra configuration on both the client and remote machines.
I've written an entire post on this topic and will not go into the same detail here. Basically I have found that once winrm is correctly configured, there is still a small subset of operations that will fail in a remote context. Any interaction with wsus is an example but please read my previous post for more. When you hit one of these road blocks, you typically have two options:
The problem im having is that sometimes it works perfectly fine and downloads the repo and the other git dependencies inside the repo, but 9/10 i have to run npm install multible times before it downloads and install all dependencies without erroring. The project has 8 or 10 other git dependencies it also have to download, all from my gitlab server. They are included the same way as the main package shown above.
One difference between this problem PC and my own is that the other PC has the gotomeeting program loaded on it as well for remote access. My PC does not. This isn't something new gotomypc has been on that PC for over a year without a problem but i thought i'd just mention it in case it possibly might be impacting the operation for some reason now of gotoassist.
That is a connection error, sometimes it can be the result of security software, other times it is something else. What version of Windows does the computer that is having trouble run, and do you know if it is up to date with its Windows updates?
After updating to ILO4 v2.82 I am unable to register the server with IRS direct connect (tried on 2 different Dl380s) - the registration page only offers to connect through a remote support host server and has no direct connect option. With the previous installed 2.77 firmware I had the option but it would throw an HTTP error upon trying to register. The ILO has DNS and gateway configured and can access the internet. Any heads up?
Next, I recommend downloading and installing the e-Manual for the machine onto your computer. It gives very detailed instructions on each of the functions on the machine. The e-Manual should be included on the User Manual CD-ROM that came with the machine. If you are unable to access it from here, please click the link below to download the e-Manual:
I have been setting up remote probes at several sites recently, and am getting a consistent error across roughly half of the sites when it comes to the installation of the remote probe. Usually I run the remote probe installer from the machine, and in installs and connects no issue. However, on a few of the sites, once the installer reaches the "connecting to server" step, it will just wait there until the bar is full, and then display the error message, "Your remote probe could not successfully connect to the PRTG server in time".
I cannot connect to our SonicWall NSA220-W firewalls with any browser. They all produce errors, as shown below. All the fixes I can find say "try another browser" or get on the SonicWall to change settings, but I am unable to get onto them. I tried the following Firefox changes which did not work: -the-ssl_error_no_cypher_overlap-error-in-firefox-34/ Opens a new window. Also tried following and did not work: -US/questions/1058193#answer-719770 Opens a new window. Any suggestions about how to fix this?
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API keys with an IP addresses restriction can only be used with web services that are intended for use from the server side (such as the Geocoding API and other Web Service APIs). Most of these web services have equivalent services within the Maps JavaScript API (for example, see the Geocoding Service). To use the Maps JavaScript API client side services, you will need to create a separate API key which can be secured with an HTTP referrers restriction (see Get, add, and restrict an API key).
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