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feat: Improve error message on connection failure [2.X] - #4208
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simon-lemay-unity merged 1 commit intoOct 23, 2026
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| { | ||
| reasons.Add($"Server/host might not be reachable. Try \"ping {ConnectionData.Address}\" in a terminal."); | ||
| reasons.Add("The firewall on the server/host might be blocking the connection attempts."); | ||
| if (m_UseEncryption && !m_UseWebSockets) |
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In browser builds with UseWebSockets false and UseEncryption true, failed direct connections incorrectly report DTLS as a possible cause. CreateDriver forces WebSocketNetworkInterface under UNITY_WEBGL && !UNITY_EDITOR, even when UseWebSockets is false. The connection therefore uses TLS over WebSockets, and recommending WebSockets sends users toward a protocol already in use. The Relay diagnostic has the same flag mismatch. Base these conditions on the effective protocol, including the WebGL fallback.
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EmandM
approved these changes
Oct 23, 2026
Codecov ReportAttention: Patch coverage is
@@ Coverage Diff @@
## develop-2.0.0 #4208 +/- ##
=================================================
- Coverage 74.20% 74.18% -0.03%
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Files 172 172
Lines 28200 28227 +27
=================================================
+ Hits 20926 20940 +14
- Misses 7274 7287 +13
Flags with carried forward coverage won't be shown. Click here to find out more.
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Purpose of this PR
Backport of PR #4207.
Jira ticket
UUM-155178
Changelog
Didn't think it was worth updating.
Documentation
Testing & QA
Functional Testing
Manual testing :
Manual testing doneAutomated tests:
Covered by existing automated testsCovered by new automated testsDoes the change require QA team to:
Review automated tests?Execute manual tests?Provide feedback about the PR?Up-port
#4207
Backports
N/A