Error: 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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Code=-2146232060
Proc=
Line=0
Inner ex=The system cannot find the file specified
Stack Trace=   at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
   at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
   at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
   at System.Data.SqlClient.SqlConnection.Open()
   at HSP.Models.CSQL.OpenConnection() in D:\HSP\Live\HSP\Models\CSQL.cs:line 79
Source=.Net SqlClient Data Provider
******** Dump of Http Request ********

Request.Params...
ASP.NET_SessionId=da0iwf12t35jnzlmxsnhaomx
ALL_HTTP=HTTP_CONNECTION:close
HTTP_ACCEPT:*/*
HTTP_ACCEPT_ENCODING:gzip, br, zstd, deflate
HTTP_HOST:www.heatingspareparts.com
HTTP_REFERER:https://heatingspareparts.com/boiler-diagrams/product/106
03/317943
HTTP_USER_AGENT:Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; com
patible; ClaudeBot/1.0; +claudebot@anthropic.com)
ALL_RAW=Connection: close
Accept: */*
Accept-Encoding: gzip, br, zstd, deflate
Host: www.heatingspareparts.com
Referer: https://heatingspareparts.com/boiler-diagrams/product/10603/3
17943
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compati
ble; ClaudeBot/1.0; +claudebot@anthropic.com)
APPL_MD_PATH=/LM/W3SVC/2/ROOT
APPL_PHYSICAL_PATH=D:\inetpub\wwwroot\HSP\
AUTH_TYPE=
AUTH_USER=
AUTH_PASSWORD=
LOGON_USER=
REMOTE_USER=
CERT_COOKIE=
CERT_FLAGS=
CERT_ISSUER=
CERT_KEYSIZE=256
CERT_SECRETKEYSIZE=2048
CERT_SERIALNUMBER=
CERT_SERVER_ISSUER=C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV
 R36
CERT_SERVER_SUBJECT=CN=www.heatingspareparts.com
CERT_SUBJECT=
CONTENT_LENGTH=0
CONTENT_TYPE=
GATEWAY_INTERFACE=CGI/1.1
HTTPS=on
HTTPS_KEYSIZE=256
HTTPS_SECRETKEYSIZE=2048
HTTPS_SERVER_ISSUER=C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV
 R36
HTTPS_SERVER_SUBJECT=CN=www.heatingspareparts.com
INSTANCE_ID=2
INSTANCE_META_PATH=/LM/W3SVC/2
LOCAL_ADDR=217.154.32.159
PATH_INFO=/boiler-diagrams/product/10603/317943
PATH_TRANSLATED=D:\inetpub\wwwroot\HSP\boiler-diagrams\product\10603\317943
QUERY_STRING=
REMOTE_ADDR=216.73.216.49
REMOTE_HOST=216.73.216.49
REMOTE_PORT=23504
REQUEST_METHOD=GET
SCRIPT_NAME=/boiler-diagrams/product/10603/317943
SERVER_NAME=www.heatingspareparts.com
SERVER_PORT=443
SERVER_PORT_SECURE=1
SERVER_PROTOCOL=HTTP/1.1
SERVER_SOFTWARE=Microsoft-IIS/10.0
URL=/boiler-diagrams/product/10603/317943
HTTP_CONNECTION=close
HTTP_ACCEPT=*/*
HTTP_ACCEPT_ENCODING=gzip, br, zstd, deflate
HTTP_HOST=www.heatingspareparts.com
HTTP_REFERER=https://heatingspareparts.com/boiler-diagrams/product/10603/317943
HTTP_USER_AGENT=Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeB
ot/1.0; +claudebot@anthropic.com)

Server Variables...
ALL_HTTP=HTTP_CONNECTION:close
HTTP_ACCEPT:*/*
HTTP_ACCEPT_ENCODING:gzip, br, zstd, deflate
HTTP_HOST:www.heatingspareparts.com
HTTP_REFERER:https://heatingspareparts.com/boiler-diagrams/product/106
03/317943
HTTP_USER_AGENT:Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; com
patible; ClaudeBot/1.0; +claudebot@anthropic.com)
ALL_RAW=Connection: close
Accept: */*
Accept-Encoding: gzip, br, zstd, deflate
Host: www.heatingspareparts.com
Referer: https://heatingspareparts.com/boiler-diagrams/product/10603/3
17943
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compati
ble; ClaudeBot/1.0; +claudebot@anthropic.com)
APPL_MD_PATH=/LM/W3SVC/2/ROOT
APPL_PHYSICAL_PATH=D:\inetpub\wwwroot\HSP\
AUTH_TYPE=
AUTH_USER=
AUTH_PASSWORD=
LOGON_USER=
REMOTE_USER=
CERT_COOKIE=
CERT_FLAGS=
CERT_ISSUER=
CERT_KEYSIZE=256
CERT_SECRETKEYSIZE=2048
CERT_SERIALNUMBER=
CERT_SERVER_ISSUER=C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV
 R36
CERT_SERVER_SUBJECT=CN=www.heatingspareparts.com
CERT_SUBJECT=
CONTENT_LENGTH=0
CONTENT_TYPE=
GATEWAY_INTERFACE=CGI/1.1
HTTPS=on
HTTPS_KEYSIZE=256
HTTPS_SECRETKEYSIZE=2048
HTTPS_SERVER_ISSUER=C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV
 R36
HTTPS_SERVER_SUBJECT=CN=www.heatingspareparts.com
INSTANCE_ID=2
INSTANCE_META_PATH=/LM/W3SVC/2
LOCAL_ADDR=217.154.32.159
PATH_INFO=/boiler-diagrams/product/10603/317943
PATH_TRANSLATED=D:\inetpub\wwwroot\HSP\boiler-diagrams\product\10603\317943
QUERY_STRING=
REMOTE_ADDR=216.73.216.49
REMOTE_HOST=216.73.216.49
REMOTE_PORT=23504
REQUEST_METHOD=GET
SCRIPT_NAME=/boiler-diagrams/product/10603/317943
SERVER_NAME=www.heatingspareparts.com
SERVER_PORT=443
SERVER_PORT_SECURE=1
SERVER_PROTOCOL=HTTP/1.1
SERVER_SOFTWARE=Microsoft-IIS/10.0
URL=/boiler-diagrams/product/10603/317943
HTTP_CONNECTION=close
HTTP_ACCEPT=*/*
HTTP_ACCEPT_ENCODING=gzip, br, zstd, deflate
HTTP_HOST=www.heatingspareparts.com
HTTP_REFERER=https://heatingspareparts.com/boiler-diagrams/product/10603/317943
HTTP_USER_AGENT=Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeB
ot/1.0; +claudebot@anthropic.com)

******** End of Http Request Dump ********

******** Dump of Session Variables ********

CallerIP=216.73.216.49
IPBlocked=N
UserLocation=216.73.216.49, Columbus, Ohio, United States of America, US
IPBlockChecked=Y
******** End of Session Variables Dump ********


******** Start of Stack Trace ********
D:\HSP\Live\HSP\Models\DBUtils.cs, GetStackTrace: Line 564: Column 17
D:\HSP\Live\HSP\Models\CSQL.cs, OpenConnection: Line 79: Column 25
D:\HSP\Live\HSP\Models\CSQL.cs, ExecuteNonQuery: Line 439: Column 17
D:\HSP\Live\HSP\Models\BoilerDiagramRepository.cs, FindFirstDiagramWithPart: Line 1107: Column 21
D:\HSP\Live\HSP\Controllers\DiagramsController.cs, Product: Line 254: Column 13
******** End of Stack Trace ********