Firewalla Purple: Windows VPN works. Android VPN fails. 100% of the time.

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Somewhat Private

• December 06, 2025 01:57
• Edited

Longtime Firewalla Purple owner here. tl;dr: I'm trying to get my Android phone to access anything (local network, internet) after connecting to Firewalla VPN, and after three hours of troubleshooting, I'm asking for help from this community. I already tried Google, AI, and this forum.

# Android VPN File, note there are some redactions

[Interface]
PrivateKey = REDACTED
Address = 10.200.241.2/32
MTU = 1412
DNS = 10.200.241.1

[Peer]
PublicKey = REDACTED
Endpoint = REDACTED.d.firewalla.org:51820
AllowedIPs = 0.0.0.0/0

 

# Windows VPN file, similar redactions

[Interface]
PrivateKey = REDACTED
Address = 10.200.241.7/32
DNS = 10.200.241.1
MTU = 1412

[Peer]
PublicKey = REDACTED
AllowedIPs = 0.0.0.0/0
Endpoint = REDACTED.d.firewalla.org:51820

 

Based on my review, the only difference between these is that the IP address from the Android phone is different than the Windows device.

 

And here are some redacted screenshots removing some device names in the hopes that this helps.

The device that ends with the name "laptop" is the Windows device that *works*, the device with the name that ends with "S24+" is the Android device that cannot connect to local resources or the internet after connecting to the VPN.

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  Firewalla

  • December 06, 2025 17:55

  Did you manually create the profile? or they were generated by the firewalla?

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  Somewhat Private

  • December 06, 2025 21:05

  These were generated by the Firewalla.

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  Firewalla

  • December 07, 2025 01:43

  Is your phone managed by MDM? does your ISP block VPN services? If both profiles are simular, likely something else is going on beyond firewalla

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  Somewhat Private

  • December 07, 2025 02:04

  The phone is not managed by MDM. My ISP doesn't block inbound VPN, otherwise the Windows laptop wouldn't be able to connect. The phone can use other commercial VPN providers successfully.

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  Firewalla

  • December 07, 2025 17:09

  Try to remove the profile on your phone and re-add it. If that does not work, please send help@firewalla.com an email, see if we can help you looking inside.

   

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  Somewhat Private

  • December 08, 2025 19:41

  Some progress! I can now VPN from my phone to external addresses, but it's unable to connect to local network resources. Suggestions?

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  Firewalla

  • December 08, 2025 19:50

  Do you have any rules blocking wirguard from accessing? try to use ping or tracroute again and see what is blocking or dropping your traffic

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  FirewallaSupportDesk

  • December 12, 2025 00:21

  You can search for "network tools" in the Play store, and download one to help with the ping tests.

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  Somewhat Private

  • December 14, 2025 23:30
  • Edited

  Thanks! When I'm on the local network, the IP address resolves as '(computer).local'. When I'm on the VPN, it resolves to '(computer).lan'.

  FWIW, my Windows VPN client happily connects to '(computer).local' when both on the local network and on the VPN. And everything else around the local network happily connects to '(computer).local'.

  And from the local network, '(computer).lan' doesn't resolve as a valid name.

  Suggestions?

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