PrusaConnect will not connect anymore TLS error
 
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96ToyotaCamry
(@96toyotacamry-2)
Eminent Member
PrusaConnect will not connect anymore TLS error

Hello,

My CoreONE arrived today, I connected the printer with PrusaConnect, all good. All afternoon.

During the evening, I noticed that the printer would show as offline on the PrusaConnect web page - I checked the printer and it little C at the top of the screen was there but a little sim compared with the WiFi signal. I double checked the configuration menu for PrusaConnect and it ws showing a TLS error.

I tried o disable and enable PrusaConnect and same error always... what happened? I'm in the middle of a 11 hours print, and PrusaConnect just decided not to work anymore?

 

Posted : 12/04/2025 1:13 am
WorstCase and RalfD liked
96ToyotaCamry
(@96toyotacamry-2)
Eminent Member
Topic starter answered:
RE: PrusaConnect will not connect anymore TLS error

A Little more information. I have also a MK4S on the same network and it connects fine. The issue seems to be isolated to the CoreONE.

I' m running the latest CoreONE firmware. 6.3.1

Posted : 12/04/2025 1:54 am
96ToyotaCamry
(@96toyotacamry-2)
Eminent Member
Topic starter answered:
RE: PrusaConnect will not connect anymore TLS error

After a printer reboot, and a hardware reset, the Prusa Connect worked on the CoreONE.

Possibly an issue with the current firmware that needs to be examined ? It is a new printer, probably tons of bugs to fix.

Anyway, all back to "normal"

Posted : 12/04/2025 11:20 am
ssmith and LarGriff liked
RalfD
(@ralfd-2)
Active Member
RE:

Hi, The same here, sometimes I have a connection, than tls- error. The connection to Prusa Link over local network works fine.
The Core One is on 6.3.2 and connected by ethernet cable. Its a little bit frustrating....

This post was modified 1 week ago by RalfD
Posted : 22/04/2025 9:33 am
WorstCase
(@worstcase)
Eminent Member
RE: PrusaConnect will not connect anymore TLS error

I just stumbled upon this thread now... I have the same issue and made a post in another part of the forum:

https://forum.prusa3d.com/forum/prusa-core-one-hardware-firmware-and-software-help/core-is-happily-printing-from-prusa-connect-but-is-offline-a-lot/#post-747501

Hello

A few days ago I assembled my new Core One and printing works great. I can send files from Prusa Slicer to Prusa Connect. The files show up and I can start the print from there. Before printing I can also control the printer via Connect.

While printing the printer goes "OFFLINE" after some time (5-30min) in Connect despite happily printing. I can even access Prusa Link via the local IP and it looks as expected. Also on the printer the stuff under "Network/Network Status" look all good.

In the menu under "Network/Prusa Connect" I see "Status: Error" and "Error: TLS Error".

While "OFFLINE" the temperatures, status, telemetry and Buddy 3d Camera do not update.

And then sometimes it suddenly comes back online for a moment (after being offline for 5-60+min).

What can I do?

Posted : 27/04/2025 3:19 pm
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