Has anyone been able to confirm if that’ll remain the case indefinitely?
Is there a key/cert that expires on the printer (at which time it’ll want to reach out to the cloud to renew), or no?
Entirely agree with you it’s a worse decision
I don’t always have internet connectivity. If I have to authenticate over the internet to use the BL slicer, it makes my printer useless.
BambuLab said there’s no killswitch in any of their (current?) firmware versions, which means there is no way for an update to be forced upon you. The firmware is closed source so we do have to trust them on that one. At the moment they do not use any authorization method that would prevent future comms - again assuming no killswitch - that’s what they’re potentially enabling with this new anti-feature…
But they are requiring an internet connection for authentication to work.
Can you point me to where this is a stated fact? Not hearsay on the internet, a stated, “We will require internet access for LAN mod to work”.
This is the statement that was released.
Despite claims to the contrary, LAN mode through Bambu Connect will require neither internet access nor a user account. This hasn’t changed and won’t change.
Somebody posted earlier what happens with the Connector with internet connection disabled while the printer is in LAN-mode - it goes into a spinning cycle without ever connecting to the printer. Also, the hard-coded cert in the Connector app has an expiration date in a year so at that point you’ll have to update at least the Connector - the question is how the verification is done at the firmware level to see if you’ll have to update the firmware as well (and thus, need an internet connection).
I don’t know about the other stuff, but i just had the most awkward case right now.
X1C in Lan mode, restricted by my router and with no communication in or out of my network at all.
Went to Orcaslicer, as i do many times, to send a print job and got error after error.
Failed to send print file to ftp
Error -4020"
Tried also with Bambu Studio, again, with no outside connection possible, since it’s router restricted. The same happened. Could not start the print job or even send the file directly.
Just as a test, as soon as i removed the restriction from the router side, it sent the print file like normal, through both Bambu Studio and Orcaslicer.
My question here and right now; why should LAN mode need an active connection?
Had to go the old ways of doing it. Removing the SD card, copying the file over and stick it in the X1C and start the print job myself.
Can anyone else also confirm this? It could be something on my side although i doubt it because until now i could always send print jobs through Lan mode without any issue and also with the same restrictions already applied. My network is pretty tight and well configured but something may have changed.
Sounds like that isn’t how it is supposed to operated. Beta releases often have bugs. Bambu has stated it’s not needed so they should be held to that.
The A/X/P series printers can now/will be updated via SD card.
https://wiki.bambulab.com/en/general/update-firmware-from-sd-card
@Square3D I believe I’ve seen that failed to sent print file error on mine with Orca before this announcement. I don’t know if restarting or trying again would’ve been any different. At the time I just said “meh” and did that print with BS.
Yep they’ve said that. Here is where the erosion of trust is having an impact. The terms of service and other assertions going around are causing doubt.
I think some of us might be mis-interpreting the diagram BL posted. Or I am. 
But with the exception of the “expiring key” issue I raised above, the way I read their chart is that even Bambu Connect doesn’t need to touch the Internet. Even though in reality it actually does right now, if we give the benefit of the doubt, that is another bug.
They should’ve posted 3 diagrams. One for cloud mode, one for LAN mode, and one for LAN mode with Developer Mode enabled.
Thank you for the feedback. Restarting routers, restarting printers, etc.
Tried with Orca and also Bambu studio, both in complete offline mode. Nothing went through until i unrestricted the printer from accessing the internet.
Anyhow, if someone has a clue or could test it out, i appreciate it. As i said, could be a problem on my end (although nothing has changed since my last print) or not.
Thank you
This is the X1 Series forum, not the A1 forum, so the information you’re referencing is irrelevant and not useful here.
I had a similar issue yesterday afternoon.
I’ve been in LAN mode for weeks, and it was working yesterday morning. Parental controls at my router normally block the printer MAC address from internet access. Studio and OrcaSlicer Device tabs have both initially shown “No Printer”, but after hitting the “+” they have always found my printer as “X1C(LAN)” and I have not needed to re-enter the access code.
I did experiment with Bambu Connect beta the day before yesterday*, in both cloud and LAN modes and then uninstalled it that same day, returning to LAN mode.
LAN-only access still worked yesterday morning, but late afternoon no printer could be found by either slicer and various combinations of cloud/LAN, log out/log in to printer and slicers did not help. I’ve made no slicer or firmware updates. I ultimately had to uninstall both Studio and OrcaSlicer, deleting all the user settings. After re-installing the slicers and re-binding the printer in cloud mode I was finally able to switch back to LAN mode. Everything seems to be working today.
*Bambu Connect beta did not start with the internet unplugged from my router, regardless of cloud/LAN mode on the X1C (v1.08.00.00). With internet access for Connect, I could drop sliced 3mf files on Connect and they would print, and I could see temperature, fan speeds, etc. in both cloud and LAN modes. Maybe the final version of the new firmware (with manually selected Developer mode on the printer) will behave differently, but Connect beta will not work at all without internet access.
As far as I know the only way the printer date and time can be set is via ntp and an internet connection. So without internet connection it can’t check for expired (or revoked) certificates.
So then the middle thing in my diagram above in fact will need a cloud connection, assuming no change to the Bambu Connect code. Not cool, but I assume everyone who cares will be in the bottom case anyway. What a mess…
Thank you very much for this follow up.
What i quoted is my main issue, that for my own reasons i don’t want to do. Having to log in to my account on the printer just so i can go to Lan mode does not seem very… friendly or make any sense. After all that is why we go to lan mode. To escape the cloud thing.
Will have to check everything again after this print job ends. I uninstalled Orca and studio and reinstalled them again but without logging in. Will have to see what’s going on but if it’s enforced that we should go online so that we can go offline again, it goes against what it is supposed to be, true offline mode.
I did not try the connect thing and i wont too. I was thinking of trying the complete “package” and give feedback but i don’t want to install a beta firmware that could be effective and non reversible. I sure would like to see how it communicates and how it handles without any online connection.
I’ll give more feedback if i find anything.
Thank you 
Dear Bambu Lab.
Simple words so no misunderstanding.
- We are your customers. We WANT to LIKE you.
- After you sell, the printer is OURS, NOT YOURS anymore.
- WE decide what firmware version it runs, NOT YOU.
- WE upgrade. WE downgrade. WE contol it, NOT YOU.
- WE decide whether we go online, NOT YOU.
- WE mod our printers as WE like, we do NOT ASK YOU for permission.
- Whether we use in print farm, commercial, NOT YOUR BUSINESS.
- Whether our network is secure or not, OUR PROBLEM, NOT YOURS.
- What we use to control our printers, you have NO SAY in it.
- WE own it after you sold it.
You understand?
OAuth, including Multi-Factor Authentication, requires a connection if the cookie or code has expired.