Prusa CORE ONE disconnecting from PRUSA CONNECT
 
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Filip Flajsinger
(@filip-flajsinger)
Member
Prusa CORE ONE disconnecting from PRUSA CONNECT

Hi,
my Prusa CORE ONE is always disconnecting when downloading files to print. The printer connect itself to prusa connect with ease, however when I upload a file to printer it disconnects itself. After few minutes it connects back and continue the download.
Could anyone help me?

Posted : 21/09/2025 8:05 am
L3DCXY
(@l3dcxy)
Member
RE: Prusa CORE ONE disconnecting from PRUSA CONNECT

Hello, sinds a week I own a Core One and it printed like grazy everyday 24 hours a day but today 21 september it keeps disconnecting from Prusa Connect. I see I'm not the only one.

Posted : 21/09/2025 12:50 pm
ormandj
(@ormandj)
Eminent Member
RE: Prusa CORE ONE disconnecting from PRUSA CONNECT

Having issues here, this was working fine a few days prior, on the latest 6.3.4 firmware. I checked the endpoint, and the certificate isn't trusted, the issuer is "Buddy Intermediate CA". Not sure if the internal firmware has the rest of the chain to establish trust, but there appears to be some issue here.

Attached is a SS of the error/issue.

 

 

Posted : 22/09/2025 4:26 pm
Filip Flajsinger
(@filip-flajsinger)
Member
Topic starter answered:
Reply

I suspect that it appeared after some update. Have you recently updated your printer?

Posted : 22/09/2025 5:52 pm
J.J. Kucharczyk
(@j-j-kucharczyk)
Eminent Member
RE: Prusa CORE ONE disconnecting from PRUSA CONNECT

Same here... After 6 weeks trying to make CoreOne to work I can see there is still problem with Prusa Connect... Now I have a big project , and while machine is downloading it, every like 5% disconnecting and after like 20 seconds is connecting again... This problem is know long time. But no worries, Prusa Team is working on... making YT video with ranking of community upgrades for CoreOne 😀

Posted : 28/09/2025 11:49 am
sabre666
(@sabre666)
Member
RE: Prusa CORE ONE disconnecting from PRUSA CONNECT

Same here, just bought a core one last week and prusa connect mostly works but after a few hours it disconnects. I can still see the livestream and in one instance it connected again. After a printer reset everything is back to normal. I can see in my router that there is no wifi disconnect. I am planning to go to a wired connection later but I doubt it solves the issue.

Posted : 02/10/2025 9:51 am
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