[GH-ISSUE #4982] Connection failure on iOS via cellular data (works on Wi-Fi) #10241

New Issue

saavagebueno · 2026-08-05T01:25:07-04:00

saavagebueno commented

2026-08-05 01:25:07 -04:00

Originally created by @hypoji on GitHub (Dec 22, 2025).
Original GitHub issue: https://github.com/netbirdio/netbird/issues/4982

Describe the problem

I am experiencing a connection issue with the iOS client. The app fails to connect when using a cellular data connection, although it works perfectly fine over Wi-Fi.

To Reproduce

Steps to reproduce the behavior:

Turn off Wi-Fi on the iOS device and enable cellular data.
Launch the application.
Attempt to connect

Expected behavior

The app should connect to the server regardless of the connection type.

Are you using NetBird Cloud?

I use NetBird Cloud (not self-host).

NetBird version

netbird ios client: v0.0.13

Is any other VPN software installed?

wireguard but disabled

Debug output

netbird-log.txt

Have you tried these troubleshooting steps?

Reviewed client troubleshooting (if applicable)
Checked for newer NetBird versions
Searched for similar issues on GitHub (including closed ones)
Restarted the NetBird client
Disabled other VPN software
Checked firewall settings

Note: English is not my first language, so please excuse any errors in my writing. I hope the attached logs provide the necessary information.

Originally created by @hypoji on GitHub (Dec 22, 2025). Original GitHub issue: https://github.com/netbirdio/netbird/issues/4982 **Describe the problem** I am experiencing a connection issue with the iOS client. The app fails to connect when using a cellular data connection, although it works perfectly fine over Wi-Fi. **To Reproduce** Steps to reproduce the behavior: 1. Turn off Wi-Fi on the iOS device and enable cellular data. 2. Launch the application. 3. Attempt to connect **Expected behavior** The app should connect to the server regardless of the connection type. **Are you using NetBird Cloud?** I use NetBird Cloud (not self-host). **NetBird version** netbird ios client: v0.0.13 **Is any other VPN software installed?** wireguard but disabled **Debug output** [netbird-log.txt](https://github.com/user-attachments/files/24290369/netbird-log.txt) **Have you tried these troubleshooting steps?** - [x] Reviewed [client troubleshooting](https://docs.netbird.io/how-to/troubleshooting-client) (if applicable) - [x] Checked for newer NetBird versions - [x] Searched for similar issues on GitHub (including closed ones) - [x] Restarted the NetBird client - [x] Disabled other VPN software - [x] Checked firewall settings Note: English is not my first language, so please excuse any errors in my writing. I hope the attached logs provide the necessary information.

saavagebueno added the triage-needed label 2026-08-05 01:25:07 -04:00

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claude/agent-network-test-cases-p743vw

android/gui-integration

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feat-post_quantum_ml_kem

ice-stun-wg-demux

dependabot/npm_and_yarn/proxy/web/npm_and_yarn-b39864987c

agent-network-setup-poc

dependabot/go_modules/aws-sdk-8f849ebaed

dependabot/github_actions/actions-a940c7c866

dependabot/go_modules/otel-e34c790afd

dependabot/go_modules/testcontainers-de325c0dd6

dependabot/go_modules/wireguard-dbd6b95108

dependabot/go_modules/pion-5f703e1eca

dependabot/go_modules/gorm-2271c8195b

fix-login-needed-check

dependabot/go_modules/google.golang.org/grpc-1.82.1

fix/ui-gtk3-support

enterprise-traefik-and-migration-fixes

disambiguate_p2p_metrics

revert/component-types-hookup

embedded-vnc

feature/ios-ssh

docs/agent-network-docs-update

dependabot/go_modules/github.com/aws/aws-sdk-go-v2/service/s3-1.106.3

dependabot/go_modules/github.com/pion/stun/v3-3.1.5

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dependabot/go_modules/github.com/pires/go-proxyproto-0.15.0

dependabot/go_modules/github.com/jackc/pgx/v5-5.10.0

dependabot/go_modules/github.com/oapi-codegen/runtime-1.6.0

dependabot/go_modules/github.com/eko/gocache/lib/v4-4.2.4

dependabot/go_modules/github.com/pkg/sftp-1.13.11

dependabot/go_modules/github.com/coreos/go-oidc/v3-3.20.0

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Reference: DYNR/netbird#10241