https://forge.codesys.com/forge/talk/Engineering/thread/38e794e3b0/2026-08-18T06:06:05.907000ZRecent posts to Login problem with FileTransfer on Raspberry Pi 5 2026-08-18T06:06:05.907000Z2026-08-18T06:06:05.907000Zlmarmontihttps://forge.codesys.com/u/lmarmonti/https://forge.codesys.come0eec146c61112e7e037d595c95515ce1257c5bc

<div class="markdown_content"><p>Thanks. <br/> If I understand correctly, this is a known historical CODESYS bug</p></div>

2026-08-18T06:06:02.018000Z2026-08-18T06:06:02.018000Zlmarmontihttps://forge.codesys.com/u/lmarmonti/https://forge.codesys.comc6ccce98bab38a7e27e2331885e7579c036dd7c7

<div class="markdown_content"><p>Thanks. <br/> If I understand correctly, this is a known historical CODESYS bug</p></div>

2026-08-15T08:06:55.637000Z2026-08-15T08:06:55.637000Zjasonhoganhttps://forge.codesys.com/u/jasonhogan/https://forge.codesys.coma897dd37396f8a5f9ba0e56292ef641031d4b85d

<div class="markdown_content"><p>That’s a classic CODESYS quirk. As soon as you enable AllowFileTransferServices=1, the web server locks down and demands authentication for everything, including WebVisu sessions. Since you're on a Raspberry Pi / Linux, trying to make the built-in CODESYS web server do both secure file handling and unauthenticated kiosk visu is usually a losing battle. A couple of ways to get around this: The cleaner route (separate the jobs): Turn AllowFileTransferServices back off in the config so your kiosk WebVisu opens freely without any login prompts. Then, handle the file download outside of CODESYS — just run a dead-simple Nginx/lighttpd file server or a tiny Python script on the Pi pointed at your export folder (/var/opt/codesys/...). That way your PLC security stays intact, and the kiosk screen just works. If you really want it through CODESYS: Check your Device -&gt; Users and Groups in the IDE. Make sure the Everyone / Anonymous user group actually has explicit view permissions checked for the Visualization. Sometimes when file services are toggled, anonymous users lose the default visu-read rights and get booted straight to the login dialog. URL / Browser trick for kiosk: If the Pi is just opening a local browser on startup, you can sometimes pass the basic credentials in the browser launch script or use a small reverse proxy on localhost to inject the headers automatically so you don't see the popup. Honestly, running a lightweight HTTP/FTP endpoint on Linux (option 1) is by far the least headache.</p></div>

2026-08-14T06:07:50.798000Z2026-08-14T06:07:50.798000Zlmarmontihttps://forge.codesys.com/u/lmarmonti/https://forge.codesys.com9b1d02785c38b28faaec0ab37d349fe57854f192

<div class="markdown_content"><p>Hello everyone,<br/> I have the same problem.</p> <p>I have a Linux-based system with CODESYS 3.6.22.20, and I need to download some files from the external web panel.<br/> I have enabled:<br/> <span>[CmpWebServerHandlerV3]</span><br/> AllowFileTransferServices=1</p> <p>In this case, I can see the login page when the web panel connects to the device.<br/> I can't disable the device user management access because I need to prevent software modifications.<br/> Do you have any ideas?</p> <p>Regards,</p></div>

2024-10-23T09:12:25.790000Z2024-10-23T09:12:25.790000Zalbertocaminahttps://forge.codesys.com/u/albertocamina/https://forge.codesys.coma16494c6b1dbdbe51ac457f663a552ca2c1f7319

<div class="markdown_content"><p>Dear eschwellinger, sorry for the late repply. Just saw your answer nor. We are using:<br/> -CODESYS V3.5 SP19 Patch 2<br/> -Compiler version - 3.5.19.20<br/> -Visulaization Profile: 4.6.0.0<br/> -CODESYS Control for Raspberry Pi 64 SL 4.12.0.0</p> <p>All the best!</p></div>

2024-09-26T11:08:59.280000Z2024-09-26T11:08:59.280000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com39b479d3cfb8b52f76ae7e9d2cb74e5b39a44bf5

<div class="markdown_content"><p>which Visu versions are you using and which runtime version?</p></div>

2024-09-24T16:39:42.305000Z2024-09-24T16:39:42.305000Zalbertocaminahttps://forge.codesys.com/u/albertocamina/https://forge.codesys.com548021a439c21b1cf27118e33d3880aebdbb6672

<div class="markdown_content"><p>Dear <a class="user-mention" href="/u/eschwellinger/">@eschwellinger</a>, I have been testing for some time and still i cannot find a sollution for this one.</p> <p>Any hint?</p> <p>Many thanks!:)</p></div>

2024-06-03T13:04:10.884000Z2024-06-03T13:04:10.884000Zalbertocaminahttps://forge.codesys.com/u/albertocamina/https://forge.codesys.comd089ffcb96b5ca4708b89db94e8de791e30f1966

<div class="markdown_content"><p>Thanks <a class="user-mention" href="/u/eschwellinger/">@eschwellinger</a>!</p> <p>So my settings look like this on CODESYSControl_User.cfg:</p> <p><span>[CmpWebServerHandlerV3]</span><br/> AllowFileTransferServices=1<br/> CallVisuServicesDirectly=0</p> <p>Sadly, is still asking for user and password as soon webvisu is loaded...</p> <p>Any clue?</p> <p>Many thanks!</p></div>

2024-04-28T09:53:29.577000Z2024-04-28T09:53:29.577000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com0b0cf36659cbc3e8b21ba6bc8609cdaaa24ed90c

<div class="markdown_content"><p>maybe to add<br/> <span>[CmpWebServerHandlerV3]</span><br/> CallVisuServicesDirectly=0<br/> would help</p></div>

2024-04-27T14:27:17.607000Z2024-04-27T14:27:17.607000Zalbertocaminahttps://forge.codesys.com/u/albertocamina/https://forge.codesys.com0b8be0930837f9d8de086dff1d37a98469e28e12

<div class="markdown_content"><p>Sorry about the repeated post by the way...</p></div>