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blazor.server.js?v=2026.1.6:1 Uncaught (in promise) Error: Cannot send data if the connection is not in the 'Connected' State.

blazor.server.js?v=2026.1.6:1 Uncaught (in promise) Error: Cannot send data if the connection is not in the 'Connected' State.

avatar
michaelhanson1458

When going back to the PSU admin console and clicking an item in the nav menu i get the following in the console. The nav buttons dont seem to do anything in the UI until i do a hard refresh. I am not sure if this is something tied to a session time out or what. 



blazor.server.js?v=2026.1.6:1 Uncaught (in promise) Error: Cannot send data if the connection is not in the 'Connected' State.
    at on.send (blazor.server.js?v=2026.1.6:1:81942)
    at Jt._sendMessage (blazor.server.js?v=2026.1.6:1:59570)
    at Jt._sendWithProtocol (blazor.server.js?v=2026.1.6:1:59660)
    at Jt.send (blazor.server.js?v=2026.1.6:1:59768)
    at yo.beginInvokeDotNetFromJS (blazor.server.js?v=2026.1.6:1:136744)
    at w.invokeDotNetMethodAsync (blazor.server.js?v=2026.1.6:1:3968)
    at E.invokeMethodAsync (blazor.server.js?v=2026.1.6:1:5476)
    at eventHelper.ts:34:40
send @ blazor.server.js?v=2026.1.6:1
_sendMessage @ blazor.server.js?v=2026.1.6:1
_sendWithProtocol @ blazor.server.js?v=2026.1.6:1
send @ blazor.server.js?v=2026.1.6:1
beginInvokeDotNetFromJS @ blazor.server.js?v=2026.1.6:1
invokeDotNetMethodAsync @ blazor.server.js?v=2026.1.6:1
invokeMethodAsync @ blazor.server.js?v=2026.1.6:1
(anonymous) @ eventHelper.ts:34
setTimeout
callback @ eventHelper.ts:34
blazor.server.js?v=2026.1.6:1 Uncaught Error: No interop methods are registered for renderer 1
    at k (blazor.server.js?v=2026.1.6:1:13525)
    at blazor.server.js?v=2026.1.6:1:13431
    at T (blazor.server.js?v=2026.1.6:1:13614)
    at I (blazor.server.js?v=2026.1.6:1:13405)
    at A.dispatchGlobalEventToAllElements (blazor.server.js?v=2026.1.6:1:16026)
    at A.onGlobalEvent (blazor.server.js?v=2026.1.6:1:15235)
k @ blazor.server.js?v=2026.1.6:1
(anonymous) @ blazor.server.js?v=2026.1.6:1
T @ blazor.server.js?v=2026.1.6:1
I @ blazor.server.js?v=2026.1.6:1
dispatchGlobalEventToAllElements @ blazor.server.js?v=2026.1.6:1
onGlobalEvent @ blazor.server.js?v=2026.1.6:1
blazor.server.js?v=2026.1.6:1 Uncaught (in promise) Error: Cannot send data if the connection is not in the 'Connected' State.
    at on.send (blazor.server.js?v=2026.1.6:1:81942)
    at Jt._sendMessage (blazor.server.js?v=2026.1.6:1:59570)
    at Jt._sendWithProtocol (blazor.server.js?v=2026.1.6:1:59660)
    at Jt.send (blazor.server.js?v=2026.1.6:1:59768)
    at yo.beginInvokeDotNetFromJS (blazor.server.js?v=2026.1.6:1:136744)
    at w.invokeDotNetMethodAsync (blazor.server.js?v=2026.1.6:1:3968)
    at E.invokeMethodAsync (blazor.server.js?v=2026.1.6:1:5476)
    at eventHelper.ts:34:40

aec4d723-8518-4690-b1e4-db03e4df8810.png

All Comments (4)

avatar
Adam Driscoll

@michaelhanson1458 It could be session time out but I would expect to see a pop up for that. It could be an exception being thrown by the UI thread causing it to break the web socket connection. We usually see this error after the real error. Are there any errors before this in the console log or is this the whole thing?

Adam Driscoll
PowerShell Expert and Developer at Devolutions

avatar
michaelhanson1458



I have also noticed this happening on any page and all elements within the admin console. In this case my session timed out and it reauthenticated me via SSO through azure auth.

The only way to "fix" this is by refreshing the page.

e2bf1b55-b7b1-43f7-ad64-d69df4c2355e.png

avatar
michaelhanson1458

8e015a51-4dde-436b-8fa7-db2e161c1435.png

avatar
Adam Driscoll

Thank you! That's what I need. I will open an issue for this.

Adam Driscoll
PowerShell Expert and Developer at Devolutions

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