i have removed the printer from the network and reconnected it. it looks like it is working now. i wil look if it stays working the comming days and let it know if it still works.

@Phaedrux in my router i have this option disabled, so i don't think this caused the problem.

also i haven't had any problems since i reconnected the printer with the network, thanks for your help.

@Phaedrux in my router i have this option disabled, so i don't think this caused the problem.

also i haven't had any problems since i reconnected the printer with the network, thanks for your help.

i have removed the printer from the network and reconnected it. it looks like it is working now. i wil look if it stays working the comming days and let it know if it still works.

@Phaedrux yes, all devices are in the same subnet. i also have a raspberry pi and i can connect to that from all devices in my network. i can also do remote desktop to my other pc that can connect to the 3d printer.

@Phaedrux via the pc that can get to DWC yes, via devices that can't connect to DWC not

@Phaedrux as far as i know not, except for devices that are connected to wireless connection for quests but my laptop or 3d printer isn't connected to this. i have a netgear Nighthawk X4S. maybe there is something i overlooked in the settings that you can say that can cause the problem? when i try to ping the 3d printer from the devices that can't connect i get connection timed out. from the other devices i get a reply. i also could connect to it via a other laptop that is connected via wifi.

when i try to connect to the DWC i get a connection time out error. this is on my laptop and smartphone. i can connect to it via my main pc (wired connection) and via the laptop op my parents. what could be the problem?
i didn't had this problem in the beginning with my laptop. i did had it with my phone.

diagnostics of my duet 2 wifi

=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.2 running on Duet WiFi 1.02 or later
Board ID: 08DLM-996RU-N85T0-6J9FG-3S86Q-KBSRN
Used output buffers: 3 of 24 (22 max)
=== RTOS ===
Static ram: 23460
Dynamic ram: 73476 of which 76 recycled
Never used RAM 15068, free system stack 103 words
Tasks: NETWORK(ready,169) HEAT(blocked,309) MAIN(running,456) IDLE(ready,19)
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 01:25:47 ago, cause: software
Last software reset details not available
Error status: 0x00
Aux0 errors 0,0,0
MCU temperature: min 25.2, current 28.8, max 29.4
Supply voltage: min 23.6, current 23.8, max 24.6, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: position 21268, ok, SG min/max 0/250
Driver 1: position -934, standstill, SG min/max 0/1023
Driver 2: position 440, ok, SG min/max 0/1023
Driver 3: position 0, ok, SG min/max 0/190
Driver 4: position 0, standstill, SG min/max not available
Driver 5: position 0
Driver 6: position 0
Driver 7: position 0
Driver 8: position 0
Driver 9: position 0
Driver 10: position 0
Driver 11: position 0
Date/time: 2021-01-08 11:48:25
Cache data hit count 4294967295
Slowest loop: 71.98ms; fastest: 0.20ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Storage ===
Free file entries: 9
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest read time 4.2ms, write time 1.0ms, max retries 0
=== Move ===
DMs created 83, maxWait 3660008ms, bed compensation in use: mesh, comp offset 0.000
=== MainDDARing ===
Scheduled moves 2783, completed moves 2780, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state 3
=== AuxDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
Heater 0 is on, I-accum = 0.5
Heater 1 is on, I-accum = 0.6
=== GCodes ===
Segments left: 1
Movement lock held by null
HTTP is idle in state(s) 0
Telnet is idle in state(s) 0
File is doing "G1 X182.915 Y196.174 E529.0788" in state(s) 0
USB is idle in state(s) 0
Aux is idle in state(s) 0
Trigger is idle in state(s) 0
Queue is idle in state(s) 0
LCD is idle in state(s) 0
Daemon is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 201.44ms; fastest: 0.10ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
HTTP sessions: 2 of 8
- WiFi -
Network state is active
WiFi module is connected to access point 
Failed messages: pending 0, notready 0, noresp 1
WiFi firmware version 1.25
WiFi MAC address ec:fa:bc:5b:3c:72
WiFi Vcc 3.38, reset reason Turned on by main processor
WiFi flash size 4194304, free heap 27000
WiFi IP address 192.168.1.244
WiFi signal strength -58dBm, mode 802.11n, reconnections 0, sleep mode modem
Clock register 00002002
Socket states: 0 0 0 0 0 0 0 0

i had this problem with 3.1.1 and also with 3.2 (just updated to this).