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Problem
A remote user cannot establish a VPN connection to access company network resources from outside the office.
Symptoms
VPN client fails to connect from home or remote locations.
Connects fine on the office network but not remotely.
Authentication succeeds but resources remain inaccessible.
Connection times out during remote attempts.
Possible Causes
Home network firewall or router blocking VPN protocols.
Incorrect remote VPN configuration.
ISP blocking certain VPN ports.
Expired or revoked remote access credentials.
Company VPN server capacity limits reached.
Resolution
Step 1
Verify the VPN client software is up to date.
Step 2
Confirm remote access credentials haven't expired.
Step 3
Check the home router's firewall settings for VPN protocol blocking (PPTP, L2TP, IPSec).
Step 4
Try connecting from a different network (such as mobile hotspot) to isolate the issue.
Step 5
Contact the IT department to confirm VPN server capacity and remote access permissions.
Step 6
Restart the home router and try reconnecting.
Prevention
Test VPN access before critical remote work days.
Keep VPN client software updated.
Coordinate with IT on any home network firewall changes needed.
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