Connection failures can come from the network, the remote device, local settings, or AnyDesk itself. Work through targeted checks — from service status to unattended access — to pinpoint where the session breaks and apply the correct fix.
Confirm which side is failing: check AnyDesk’s status, the remote device’s availability, and both devices’ internet.
Common fixes: restart or update AnyDesk, correct date/time, adjust firewall/antivirus rules, and verify VPN/proxy settings.
If the remote device requires approval, verify manual vs unattended access settings and the correct password before troubleshooting networks.
# Quick summary AnyDesk connections fail for a handful of predictable reasons: an outage at AnyDesk, the remote machine being asleep or offline, local or remote network problems, mismatched client versions, incorrect date/time, security software blocking traffic, VPN/proxy restrictions, or access/approval settings on the remote side. The right fix depends on where the connection fails.
# Step-by-step troubleshooting
Open the AnyDesk status page before reinstalling software. If multiple unrelated devices stopped connecting at once, an outage is plausible. A normal status page does not rule out local network issues.
Ask someone at the remote computer to wake it, confirm internet access, open AnyDesk, and read back the current AnyDesk ID or alias. Re-enter that address rather than relying on a saved entry. If the computer sleeps when idle, adjust its power settings for the hours you need remote access.
Open several websites on each device. If browsing fails, fix that first. Try an alternate network such as a phone hotspot to isolate which side causes the failure. If AnyDesk works over the hotspot but not the original Wi‑Fi, the network's DNS, router filters, or firewall rules are likely involved.
A mismatched system clock can interfere with secure connections. Verify both computers have correct date and time settings and use network time if available.
Firewalls or security suites can block outbound or inbound AnyDesk traffic. Allow AnyDesk through Windows Firewall or your third‑party antivirus, and ensure required outbound ports (or fallback ports like 80/443) are not blocked by network policy.
VPNs or proxies can route or block traffic in ways that break AnyDesk. Temporarily disconnect a VPN or switch to a direct connection to test. If a managed network blocks AnyDesk, try a user-permitted alternative connection to confirm network-level restrictions.
If the remote device prompts but you never see approval, verify whether it requires manual confirmation or is set for unattended access with a password. Enter the correct password for unattended sessions. For manual approval, confirm the remote user sees and accepts the incoming request.
# Platform-specific notes
# Final checklist Work top to bottom: check AnyDesk status, confirm remote availability, verify both internets, restart and update clients, fix clock errors, review security rules, test without VPN/proxy, and confirm access settings. Apply only the fixes relevant to where the connection fails.
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