Login server unreachable SonicWall SSL-VPN

All of sudden users can't access our SonicWall SSL-VPN NetExtender.   Receiving error message "Login server unreachable"
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did you power cycle the appliance? are you using it in conjunction with a sonicwall appliance? do internal users have internet access? do you get the login screen?
lelynchAuthor Commented:
Yes, we did re-cycle the device.  Users are getting a login screen and yes, internal users have Internet access.   Only the outside users can't connect via NetExtender
lelynchAuthor Commented:
Additionally, one of our DC controllers went down.  Is there a way within the SonicWall SSL-VPN device to switch to an alernative DC system?
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are you authenticating users through RADIUS, LDAP or the local ssl-vpn appliance database? the reason i ask:

lelynchAuthor Commented:

Users are now able to login

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cool...glad i could help and thanks for the points!
lelynchAuthor Commented:
Solution provided worked
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