Ecatcher having VPN Tunnel Error: Failed to Open tap-windows6 adapter

Antonio Crenshaw

• March 30, 2026 18:14

I have multiple cosi ewon that have been giving me trouble lately. I was gone for a month doing a service job and came back to the office trying to connect to my clients and kept receiving the same error: VPN Tunnel error: failed to open tap-windows6 adapter. Ran connection checker to see whats going on and I only have a connection to 41% of the ewons out there at this moment. I talked to IT and no major changes have occured in the network. I checked the adapter name and it matches what it should be. I can't tell if my laptop updated itself and lost connection that way, but any help or advice on how to resolve this would be greatly appreciated. 

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  Jack Sparrow

  • October 03, 2026 10:18
  • Edited

  @Antonio Crenshaw I had a similar issue with a VPN adapter before. I’d first check Device Manager to make sure the TAP-Windows adapter is enabled and doesn’t show any errors. If everything looks normal, restarting the VPN service or reinstalling the TAP adapter may help. I’d also check whether Windows recently installed an update that changed the network drivers.سعر الذهب اليوم

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