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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(169.60000000000002, 71%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EOD%3C/text%3E%3C/svg%3E)
Good day Microsoft community,
I require your assistance to resolve error that comes from server using Signal R for our chat room.
We have issue, that our chat lose connection every 30sec - 1 minute due to below error, so the chat room keeps reconnecting again, so it give to us bad user experience, that visual the user. see that chat room loads again.
"Error: Failed to start the connection: Error: The connection was stopped during negotiation"
I have added debug logger and see currently following:
264850-localhost-1669656148292.log
Please let me know if I should post here a client code for review.
Thank you.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(185.6, 59%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESM%3C/text%3E%3C/svg%3E)
Thanks for reaching here! Could you please try moving the AllowAllPolicy to the configure method-
app.UseCors(builder =>
{
builder.WithOrigins("http://localhost:4200")
.AllowAnyHeader().AllowAnyMethod().AllowCredentials();
});
See might help: https://github.com/aspnet/SignalR/issues/2095#issuecomment-383899098
Let us know.
Thank you for your response, it was found that it is UI issue that stops signal r, the chat component rerenders by itself that caused triggers stop signal r connection.
Anyway, thanks for the assistance.