Kuailian Blocked by macOS Gatekeeper?
Unverified developer or damaged app on Mac: verify source, Privacy & Security, network extension.
Read article →WindowsKuailian Windows SmartScreen or Defender Block?
Unknown publisher or Defender threat: check signature and source; temporary allow, restore AV rules.
Read article →iOSKuailian iOS Profile Won't Delete?
Stale VPN configs on iPhone: remove profiles, VPN entries, reset network if needed.
Read article →CorporateKuailian Blocked on Corporate or Campus Wi-Fi?
Office Wi-Fi timeout: hotspot contrast, UDP/TCP protocol checks, respect IT policy.
Read article →IPv6Kuailian IPv6 Leak Check
IPv6 tests still show ISP addresses: system v6 toggles, in-app anti-leak, split rules.
Read article →RenewalKuailian Subscription Renewal Failed or Plan Out of Sync?
Charged but still expired: verify account, payment channel, device time, and multi-device limits before paying twice.
Read article →Public Wi-FiKuailian on Public Wi-Fi: What to Check First
Café, airport, hotel Wi-Fi: finish captive portal auth before VPN; Kill Switch and split notes.
Read article →CellularKuailian Works on Wi-Fi But Fails on Mobile Data?
Wi-Fi OK, 4G/5G connect-fail or drop: contrast cellular toggles, dual-SIM default data, APN, and in-app prompts.
Read article →Per-AppKuailian Connected But One App or Site Still Won’t Open?
Works overall, only one app/site spins: contrast per-app proxy/split rules and target-site limits.
Read article →BackgroundKuailian Drops on Lock Screen or Background?
Foreground connects, lock/app-switch drops: Android battery whitelist and OS power kills.
Read article →DevicesKuailian Device Limit Exceeded?
Device cap and multi-device kicks: clear device list, contrast new-phone eviction.
Read article →PortalHotel or Airport Wi-Fi Blocks Kuailian?
Hotel/airport captive portal: finish auth first; temporary disconnect and split bypass.
Read article →ReconnectKuailian Reconnect Loop or Drops After Connect?
Contrast Wi-Fi handoffs, background battery limits, and network extensions.
Read article →DNSKuailian DNS Leak Check
Contrast resolver egress after connect; verify VPN DNS vs system DNS and split conflicts.
Read article →ProtocolKuailian Protocol Switch: WireGuard & OpenVPN
Leave Auto for WireGuard / OpenVPN; UDP/TCP connect-fail contrasts.
Read article →StartupKuailian Auto-Connect or Startup Fail?
Verify launch-at-startup and auto-connect: OS permission, background, battery limits.
Read article →Kill SwitchKuailian Kill Switch: Enable & False Offline Cuts
Verify Kill Switch / network lock: disconnect leaks vs false full-device cuts.
Read article →SplitKuailian Split Tunnel or Bypass List
Verify split rules, bypass lists, and app exclusions—wrong path vs no internet.
Read article →SpeedKuailian Slow Speed or High Latency
Everyday browsing, downloads, and meetings: off/on speed tests, protocol, nodes, local bandwidth.
Read article →LoginKuailian Login or Auth Failed
Separate password, subscription, device time, network, and installer version.
Read article →No InternetKuailian Shows Connected But No Internet
Reconnect, nodes, DNS, system proxy, Kill Switch; deep split checks in split guide.
Read article →ConnectionKuailian Can't Connect? Common Fixes
DNS pollution, protocol switching, node selection, version updates, firewall troubleshooting.
Read article →GamingKuailian Gaming Latency and Packet Loss
Separate Wi-Fi, ISP route, game region, background traffic, and VPN route issues.
Read article →LaunchKuailian Crashing or Won't Open
Check OS version, storage, permissions, old profiles, and installer source.
Read article →TroubleshootingKuailian Server Not Responding
Check where the prompt appears, then review network, version, permissions, and routes.
Read article →Need to install Kuailian first?
Pick your platform on the download page; pair guides with blog deep dives.
Open download page