![]() What it does is to adjust the receive windows size continually based upon the changing network conditions. Vista introduces a new feature called "Receive Window Auto-Tuning". Reg add HKLM\System\CurrentControlSet\Services\Tcpip\Parameters /v ArpRetr圜ount /t REG_DWORD /d 0 /f If that doesn't work, run the following from cmd, if you have UAC enabled ensure you run cmd as administrator. This resolves the issue until Vista reports a duplicate IP address again. ![]() Open "Network and Sharing Center", then select "Manage Network Connections", Enable the Virtual Adapter "VA", then right click on the VA and select "diagnose" from the context menu and after that select, "Reset the network adapter "Local Area Connection X" Subsequent connection fail with same message but Vista doesn't report a duplicate IP address detected. Receiving the following error "Reason 442: failed to enable virtual adapter" appears after Vista reports a duplicate IP address detected. Or you run into a specific problem of Vista with IPsec client < V5.0.3.560 Also try to add the following line to vpnclient.ini: VAEnableAlt=0. Or go to network connection property pages and try to manually enable/disable the _Cisco Systems VPN Adapter_. Reason 442: Failed to enable virtual adapter.Īttempt a reboot before trying again. There's no relation to the problem I mentioned. With IPSec client 442 is another problem with Vista. How can I prevent An圜onnect to change the interface name? ![]() In my opinion the main problem is the renaming The connection established until An圜onnect get's an IP address from the ASA.Īfter that, vpnupdater starts and connection crashes.Īt that moment McAfee Internet Security blocks further traffic and there's no chance to get it running until McAfee is reinstalled.Īn圜onnect reports: The VPN client driver has encountered an error. If the An圜onnect client is installed there's a new interface in network connections with an ordinary name (like 'LAN connection 4').įirst time I establish a VPN connection the interface gets renamed to 'Cisco An圜onnect VPN Client Connection'. I have tested the following and could reenact the issue (also with 2.5). So we have many different issues but one of the main problems is, that An圜onnect and McAfee don't work together. We actually install An圜onnect on many clients with lots of different configurations. ![]()
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