Hello,
I have a problem reaching my printer P1S from Bambu-Studio when the LAN has no internet.
Im working on Bambu-Studio 1.9.5.51 for Linux on Ubuntu 24.10.
The internet is often down for 3 to 30 hours. Then I can’t print.
What am I doing wrong?? Please help.
By default, Bambu Studio communicates with your P1S by sending data over the internet to the Bambu servers and then back to your printer.
You can change the printer settings to communicate only on your local LAN, but you will not be able to use the Handy phone app,
My printer is set to LAN only Modus for over one year.
I can´t print without internet. Is the WAN down, BambuStudio has no connection to the printer.
Another solution?
There was no indication in your post that you were already using LAN-only mode. I can only suggest reviewing the Wiki.
LAN-only mode has always worked for me without internet access. At different times, I have denied the printer internet access at the router, disconnected the router from the modem, and had our internet cable accidentally cut by utility workers. In all cases, I was still able to print from my computer using LAN-only mode.
ok, do you work with BambuStudio on Linux, too?
Maybe it’s due to the configuration in Bambu Studio?
You can try using a WLAN micro SD card, which you insert into the P1S or X1C slot of the previous SD micro card and then simply send the files back and forth from your computer via WLAN. You may still have to start printing on the device itself, but there is no need to remove the SD card.
If you always have internet reception on your mobile phone, you can also set up a hotspot, or you can send the print file to your mobile phone via Onedrive, open the Bambu file in Onedrive on your mobile phone and start the print in the Bambu app on your mobile phone.
PS: WLAN SD cards are currently available, but you can only get a WLAN micro SD card via Aliexpress. Rear width of the micro SD card: 11mm.
Thanks for the tip, but I think it’s the wrong approach.
The printer can be reached via LAN/WLAN from the BambuStudio as long as the PC has internet. I think BambuStudio is calling home… 
before the connection to the printer is started.
And if Bambu is not reachable, it will not connect to the printer.
Who knows what Bambu wants to know before printing…
The local wifi connection of P1S is half-baked. It uses the same tech like ftps over LAN but with janky security like pin code, password or whatever. The problem lays in the SDK of esp32 (which mcu is the brain of P1S), as the SDK of esp32 was never good to begin with.
For the convenience I only use cloud for transfering gcode to the printer. If internet is down, then SD card transfer is my back up option. The suggestion about wifi sd card is quite solid in my opinion. At least for this way you can take control of the situation, while using off-line LAN only mode of P1S you are passively relying on janky LAN mode solution. I know there is a print farm only use sd card transfering method for their P1Ss
PS: I used esp32 for its cheap price but the more I wrote code for it the more I found it bad so that I can rant about the flaws of esp32 all day. FYI, designing circuit board around microcontroller is a part of my day job.
Thanks for the tips. So I can’t improve anything if there’s no internet.
It’s usually not so urgent that I need to use the SD card.
