Hi @qzz,
Please check the following:
– check your iPad Settings -> Privacy -> Local Network, if spacedesk is on the list and enabled
– if you have third party antivirus or firewall, please make sure that you have spacedesk or C:\Windows\system32\spacedeskService.exe added in the exception list to allow incoming and outgoing connection
– if you have VPN (Virtual Private Network) active, try to disable it
– if your connecting over wireless network, please make sure your wifi router has client isolation disabled
– if your current Network profile in your primary machine is Public, please try to switch it to Private in Windows Settings -> Internet & Network
For further assistance, please refer to Troubleshooting -> Network Connection chapter in the user manual https://forum.spacedesk.netuser-manual/