Connection is not reachable. Disconnecting.

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mloffer

Posts: 2
Joined: Sat Jul 17, 2021 4:29 am

Post by mloffer » Sat Jul 17, 2021 4:39 am
I'm suddenly getting an error when connecting to any of the 3 VPNs I regularly connect to for the last several years. This also recently happened to another employee of mine. I'm not sure what would have changed all of the sudden. The logs says:
Code: Select all
Jul 16 11:29:55 AM: State changed to Connecting
Jul 16 11:29:55 AM: Viscosity Windows 1.9.3 (1723)
Jul 16 11:29:55 AM: Running on Windows 10 2009 (19043) 64 bit
Jul 16 11:29:55 AM: Running on .NET Framework Version 4.8.04084.528372
Jul 16 11:29:55 AM: Checking reachability status of connection...
Jul 16 11:29:55 AM: Connection is not reachable. Disconnecting.
Jul 16 11:29:55 AM: State changed to Disconnecting
Jul 16 11:29:55 AM: State changed to Disconnected
Jul 16 11:29:55 AM: State changed to Disconnected
It seems that people have been pointed to this article in the past: https://www.sparklabs.com/support/kb/ar ... connected/

Under Additional Troubleshooting, it says the log can provide more details. I assume that Not Reachable from the KB article corresponds to the message Connection is not reachable. Disconnecting. that I am seeing in the log. The KB article says that indicates there is no route to the server. My routing table looks fine, and I have verified that I have a route to the VPN server via Powershell:
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PS C:\Users\micah> nslookup clientvpn.cvpn-endpoint-023269c86d319e3b4.prod.clientvpn.us-east-1.amazonaws.com
Server:  RT-AC88U-8D18
Address:  192.168.1.1

Non-authoritative answer:
Name:    clientvpn.cvpn-endpoint-023269c86d319e3b4.prod.clientvpn.us-east-1.amazonaws.com
Addresses:  54.237.25.147
          34.199.14.168

PS C:\Users\micah> Find-NetRoute -RemoteIPAddress "34.199.14.168" | Select-Object ifIndex,DestinationPrefix,NextHop,RouteMetric -Last 1

ifIndex DestinationPrefix NextHop     RouteMetric
------- ----------------- -------     -----------
      3 0.0.0.0/0         192.168.1.1           1


PS C:\Users\micah> Find-NetRoute -RemoteIPAddress "54.237.25.147" | Select-Object ifIndex,DestinationPrefix,NextHop,RouteMetric -Last 1

ifIndex DestinationPrefix NextHop     RouteMetric
------- ----------------- -------     -----------
      3 0.0.0.0/0         192.168.1.1           1
I've also tried resetting my entire network stack with netsh int ip reset, but that hasn't solved the issue. Any idea why this might be happening all of the sudden, to two different PCs in different locations?

Eric Online

User avatar
Posts: 1112
Joined: Sun Jan 03, 2010 3:27 am

Post by Eric » Mon Jul 19, 2021 9:34 am
Hi mloffer,

Please ensure you don't have any firewall software blocking ViscosityService or OpenVPN @ C:\Program Files\Viscosity.

Please also try updating to the latest beta - https://sparklabs.com/support/kb/articl ... -versions/

Regards,
Eric
Eric Thorpe
Viscosity Developer

Web: http://www.sparklabs.com
Support: http://www.sparklabs.com/support
Twitter: http://twitter.com/sparklabs

mloffer

Posts: 2
Joined: Sat Jul 17, 2021 4:29 am

Post by mloffer » Thu Jul 29, 2021 1:51 am
This seems to be caused by F5's BIG-IP VPN adapter. I am required to use this to connect to one of my client's network. It routes all traffic through their gateway when connected. It often leaves things in an inconsistent state. Sometimes I'll notice that it's changed DNS settings on my primary network adapter.

Anyway, everything appeared to be cleaned up after disconnecting from F5 (routing tables and DNS looked fine), but I couldn't connect to any VPNs via Viscosity. After trying all kinds of things, I finally connected to F5 and then disconnected and that seemed to clear out whatever was stuck from a previous connection. I can now connect to all my VPNs via Viscosity.
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