System.Net Information: 0 : FtpWebRequest#47891719::GetRequestStream(Method=STOR.) 09:36:59 3608 1 Status: File transfer successful, transferred 1,361 bytes in 1 secondįTP Log from my code: System.Net Information: 0 : FtpWebRequest#47891719.ctor() 09:36:59 3608 1 Status: Starting upload of C:\Users\fcons_tzfi6gp\Documents\GitHub\production-assembly-app\bin\Debug\rwis\rwis_config.py 09:36:56 3608 1 Status: Directory listing of "/flash" successful 09:36:55 3608 1 Status: Retrieving directory listing of "/flash". 09:36:52 3608 1 Status: Directory listing of "/" successful 09:36:52 3608 1 Status: Retrieving directory listing. 09:36:52 3608 1 Status: Server does not support non-ASCII characters. 09:36:52 3608 1 Status: Plain FTP is insecure. 09:36:52 3608 1 Status: Connection established, waiting for welcome message. Stream ftpstream = ftp.GetRequestStream() įtpstream.Write(buffer, 0, buffer.Length) įTP Log from Filezilla: 09:36:52 3608 1 Status: Connecting to 192.168.4.1:21. Var buffer = File.ReadAllBytes(appFilepath) Here's the link to that post, it includes FTP logs and some solutions that were tried in the comments:įtpWebRequest ftp = (FtpWebRequest)FtpWebRequest.Create(deviceFilepath) įtp.Credentials = new NetworkCredential(UserId, Password) įtp.Method = I posted this question to the forum for the specific microcontroller I'm using but didn't get a solution. The WebException thrown shows no extra details in the InnerException and the StatusDescription comes back as an empty string. I've erased all program files on the microcontroller so I know storage space is not the issue and I don't think its a firewall issue since I can upload successfully through Filezilla. But when I run the code below I receive the error "The remote server returned an error: (451) Local error in processing." at the line "ftpstream.Close() " every single time no matter what file I try to upload, regardless of size or file type, and the new file does show up in Filezilla on the FiPy but with a size of 0 bytes. I can successfully upload program files via Filezilla. Uses the class to download the updates.I'm writing a Windows Forms application in C# that allows a user to connect to a microcontroller and upload program files via FTP. net 2.0/3.0 app that uses a WCF call to download a list of updated files and then The kiosks are Windows XP Pro all-in-one touchscreen units that connect to a Linksys Wireless Router using 802.11g with WPA Encryption. The server is a Windows 2003 Standard Edition Server running IIS 6 for both website hosting and FTP. Here is some information on our system setup: So my question is, what sort of things can cause a FTP 426 error and are there any recommendations or best practices that we can follow to reduce or eliminate their occurrences? The errors also do not consistently occur from any specific kiosks or physical locations. Occurred while downloading one specific file (probably about 75% of the errors). However, I started noticing a pattern where the error most frequently Periodic cases where the kiosks fail to download updates with the kiosks reporting that the connect was closed by the remote host and the FTP Logs on the server showing 426 status codes.Īt first I was just ignoring the errors assuming it was some kind of random network connectivity problem since typically only 1-5 of the 30 kiosks tend to encounter the problem. For the most part this system has been working pretty reliably. We have a system that has approximately 30 kiosks out in the field that connect in to our central FTP server each night to download software and content updates.
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