diff --git a/‎Lib/Neon.SignalR/Proxy/ServiceCollectionExtensions.cs‎
Lines changed: 6 additions & 0 deletions b/‎Lib/Neon.SignalR/Proxy/ServiceCollectionExtensions.cs‎
Lines changed: 6 additions & 0 deletions
@@ -48,6 +48,12 @@ public static IServiceCollection AddSignalrProxy(this IServiceCollection service
                     serviceProvider =>
                     {
                         var config = serviceProvider.GetRequiredService<ProxyConfig>();
+
+                        if (config.ActivityTimeout > TimeSpan.FromMilliseconds(int.MaxValue))
+                        {
+                            throw new ArgumentException("ActivityTimeout must be less than or equal to int.MaxValue milliseconds.");
+                        }
+
                         return new ForwarderRequestConfig()
                         {
                             ActivityTimeout = config.ActivityTimeout,
Original file line number	Diff line number	Diff line change
`@@ -48,6 +48,12 @@ public static IServiceCollection AddSignalrProxy(this IServiceCollection service`
`48`	`48`	`serviceProvider =>`
`49`	`49`	`{`
`50`	`50`	`var config = serviceProvider.GetRequiredService<ProxyConfig>();`
	`51`	`+`
	`52`	`+ if (config.ActivityTimeout > TimeSpan.FromMilliseconds(int.MaxValue))`
	`53`	`+ {`
	`54`	`+ throw new ArgumentException("ActivityTimeout must be less than or equal to int.MaxValue milliseconds.");`
	`55`	`+ }`
	`56`	`+`
`51`	`57`	`return new ForwarderRequestConfig()`
`52`	`58`	`{`
`53`	`59`	`ActivityTimeout = config.ActivityTimeout,`