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I'm not sure that this is the correct place to post this, but there is a bug in UM3's wifi/networking code that prevents connection to networks due to an error in the DHCP client code.
In particular, if UM3 has an IP address it wishes to use and makes a DHCP registration attempt requesting an address not in the server's DHCP address pool or an address used/reserved for another machine, the DHCP server responds with a DHCPNAK that is - somehow - not only not recognized by UM3, but also interpreted as an all-ok signal. UM3 keeps its old address and thinks it is on the network.
Another bug is that UM3 does not expire DHCP leases. A few days later, UM3 is still refusing to forget about the incorrect address.
Here is the exchange from the server's DHCP logs:
EDIT - your forum software is blocking the log because it contains IP addresses; I am forced to upload as a picture instead:
DHCP NAK bug in UM3
in UltiMaker 3D printers
Posted · Edited by Guest
I'm not sure that this is the correct place to post this, but there is a bug in UM3's wifi/networking code that prevents connection to networks due to an error in the DHCP client code.
In particular, if UM3 has an IP address it wishes to use and makes a DHCP registration attempt requesting an address not in the server's DHCP address pool or an address used/reserved for another machine, the DHCP server responds with a DHCPNAK that is - somehow - not only not recognized by UM3, but also interpreted as an all-ok signal. UM3 keeps its old address and thinks it is on the network.
Another bug is that UM3 does not expire DHCP leases. A few days later, UM3 is still refusing to forget about the incorrect address.
Here is the exchange from the server's DHCP logs:
EDIT - your forum software is blocking the log because it contains IP addresses; I am forced to upload as a picture instead: