Read my post for information regarding your issue
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Your issue seems unrelated. The FileZilla upload issue seems to have to do with the session ID being reused. WinSCP can be used instead as per this post above and the OP mentions this now as well.
I only asked @Nunzy about uploads larger than ~250kb only because itâs interesting that it works on the MacOS version of FileZilla but not the Windows version.
@Nunzy, can you share your FileZilla settings? I have tried many settings using FileZilla 3.64.0 on macOS 13, but I canât upload anything. I can download timelapse videos without any problem, but every upload fails and the P1P is getting disconnected from network.
Only thing I changed was to upload in ASCII, bit is was still hit or miss as to if it uploaded g-code, as it updates the file on the p1p, but filezilla still whines about being disconnected a couple of times before it works.
Have you formatted your sdcard for 4k sectors? as I had issues before I did that just listing the files on the card. Also I have multiple sdcards, as I never trusted the one that came with it. Using lexar ones mostly now.
But honestly now, I moved to using lftp now from the command line, as I commonly dont just use my mac, I also use my Linux laptop as Iâve had issues with the slicer on the mac.
Finally access to my Timelapse Folder. Thank you much very (y)
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Has anyone determined how a print job is sent to the printer in LAN only mode?
I am trying to collect all of the information about how Bambu Studio connects to the printer for the various function. I already have the MQTT part for status.
I am assuming based on this thread that ftp is used to send files to the SD card.
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I have now successfully printed in LAN only mode by transferring the 3MF file with FTP and then using MQTT to start the print.
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Can you share the details of this for us?
Just upload the 3MF file to the SD card with WinSCP.
Then you issue the MQTT command to tell the printer to print that file.
My MQTT test app is not in good enough shape to add it to my github repo. Also, I am talking about adding it to Orca.
I started the work because the LAN only mode was so terribly slow. It seems that it has gotten better lately, and I have not been as frustrated so I put the MQTT tool on the back burner for now.
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Sorry I wasnât clear but I was hoping to learn the command 
Is there also a command to have the printer rescan the files on the SD? When uploading over FTP it doesnât show the new files on the LCD right away (I usually pop the SD and reinsert it to force it to rescan)
I was just being lazy because I was in the middle of something. 
The actual messages sent to the printer are in the debug_network.log, at least in lan only mode.
Look for lines that include:
print_job: upload_3mf(withgcode)
print_job: json = {âprintâ:{
When I did it manually I did not send the upload_3mf command. The second line is the command that actually starts the print and has the name of the 3mf file, and the name of the gcode file inside it that tells the printer what to print.
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Successfully downloaded time lapses using Filezilla on my Mac. Thank you Bambu community. Very helpful
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Many thanks for the info. I successfully connected with Fetch on my Mac (FTP over TLS with port 990). Downloaded some cam videos at 230KB/s so took a few minutes. But at least I didnât have to go and extract the microSD card
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Thanks, got this working.
Interestingly enough, I found a bunch of videos on the card. I have NEVER used the timelapse feature, nor do these videos show up in the âmediaâ section when using the slicer, but there they were. DELETE.
Thatâs normal. You can turn that off in the slicer using the icons above the video stream or in Bambu Handy.
Itâs like dashcam footage, useful in case something happens and you need to go back and see what caused it. For example, I had a print fail and found the cover of the tool head was knocked off. I was able to see what happened by checking the video. Also, when you submit a support ticket with Bambu, you have the option of sharing the video along with the logs.
With the update to firmware 1.04.00.00 from yesterday, the upload with FileZilla seems to work now. At least I was able to upload a 3mf file to the printer.
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This doesnât seem to work on a P1S. I did the same bblp for username and accesscode for password but itâs not working
Nvm got it to work now. Gotta use the port 990 found from a different post.
Just as an info. SFTP with Totalcommander 11.x works out of the box for me.
Speed is slow, but much better, as eject every time the SD-Card.
itâs a limitation of the ESP from the P1P, which is only capable to transfer data over Wifi with a data rate of max 200kB/s.