Error — 28201 Kerio Vpn Client ((better))

| Step | Action | Success Rate | | :--- | :--- | :--- | | 1 | Test port 4090 with telnet | High | | 2 | Disable firewalls/AV temporarily | Medium | | 3 | Disable SIP ALG on router | Medium | | 4 | | Very High | | 5 | Re-import .kvp file | Medium | | 6 | Server license & service check | High (Admin only) | | 7 | Reset Winsock + disable IPv6 | Low |