diff --git a/Directory.Build.props b/Directory.Build.props
index 2443969d..63bd7e7e 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -1,6 +1,6 @@
 <Project>
 	<PropertyGroup>
-		<Version>1.9.20.451-gwyn</Version>
+		<Version>1.9.20.453-gwyn</Version>
 		<Product>LibreMetaverse</Product>
 		<Authors>Sjofn LLC, OpenMetaverse Developers</Authors>
 		<Copyright>Copyright © OpenMetaverse Developers 2008, 2017. Copyright © Sjofn LLC 2018-2022. All rights reserved.</Copyright>
@@ -8,7 +8,7 @@
 		<Company>Sjofn LLC</Company>
 	</PropertyGroup>
 	<PropertyGroup>
-		<PackageVersion>1.9.20.451-gwyn</PackageVersion>
+		<PackageVersion>1.9.20.453-gwyn</PackageVersion>
 		<PackageIcon>logo.png</PackageIcon>
 		<PackageReadmeFile>README.md</PackageReadmeFile>
 		<PackageLicenseExpression>BSD-3-Clause</PackageLicenseExpression>
diff --git a/LibreMetaverse/Capabilities/EventQueueClient.cs b/LibreMetaverse/Capabilities/EventQueueClient.cs
index ed613d41..587c594c 100644
--- a/LibreMetaverse/Capabilities/EventQueueClient.cs
+++ b/LibreMetaverse/Capabilities/EventQueueClient.cs
@@ -24,7 +24,8 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-using System;
+using System;
+using System.Collections;
 using System.Net;
 using System.Threading;
 using OpenMetaverse.StructuredData;
@@ -155,7 +156,37 @@ namespace OpenMetaverse.Http
                         break;
                     case (HttpStatusCode)499: // weird error returned occasionally, ignore for now
 												// I believe this is the timeout error invented by LL for LSL HTTP-out requests (gwyneth 20220413)
-												Logger.Log("Possible HTTP-out timeout error, no need to continue)", Helpers.LogLevel.Info);
+												Logger.Log($"Possible HTTP-out timeout error from {_Address}, no need to continue", Helpers.LogLevel.Debug);
+
+												_Running = false;
+												_Dead = true;
+												break;
+										case HttpStatusCode.InternalServerError:
+												// As per LL's instructions, we ought to consider this a
+												// 'request to close client' (gwyneth 20220413)
+												Logger.Log($"Grid sent a {code} at {_Address}, closing connection", Helpers.LogLevel.Debug);
+
+												// ... but do we happen to have an InnerException? Log it!
+												if (error.InnerException != null)
+												{
+														// unravel the whole inner error message, so we finally figure out what it is!
+														// (gwyneth 20220414)
+														Logger.Log($"Unrecognized internal caps exception from {_Address}: '{error.InnerException.Message}'",																					Helpers.LogLevel.Warning);
+														Logger.Log("\nMessage ---\n{error.Message}",				Helpers.LogLevel.Warning);
+														Logger.Log("\nHelpLink ---\n{ex.HelpLink}",					Helpers.LogLevel.Warning);
+														Logger.Log("\nSource ---\n{error.Source}",					Helpers.LogLevel.Warning);
+														Logger.Log("\nStackTrace ---\n{error.StackTrace}",  Helpers.LogLevel.Warning);
+														Logger.Log("\nTargetSite ---\n{error.TargetSite}",  Helpers.LogLevel.Warning);
+														if (error.Data.Count > 0)
+														{
+																Logger.Log("  Extra details:",									Helpers.LogLevel.Warning);
+																foreach (DictionaryEntry de in error.Data)
+															 		Logger.Log(String.Format("    Key: {0,-20}      Value: {1}",
+																			"'" + de.Key.ToString() + "'", de.Value),
+																			Helpers.LogLevel.Warning);
+														}
+														// but we'll nevertheless close this connection (gwyneth 20220414)
+												}
 
 												_Running = false;
 												_Dead = true;
@@ -165,7 +196,11 @@ namespace OpenMetaverse.Http
                         // The EventQueue server is a proxy that connects to a Squid
                         // cache which will time out periodically. The EventQueue server
                         // interprets this as a generic error and returns a 502 to us
-                        // that we ignore
+                        // that we ignore
+												//
+												// Note: if this condition persists, it _might_ be the grid trying to request
+												// that the client closes the connection, as per LL's specs (gwyneth 20220414)
+												Logger.Log($"Grid sent a Bad Gateway Error at {_Address}; probably a time-out from the grid's EventQueue server (normal) -- ignoring and continuing", Helpers.LogLevel.Debug);
                         break;
                     default:
                         ++_errorCount;
@@ -178,26 +213,20 @@ namespace OpenMetaverse.Http
                         }
                         else if (error.InnerException != null)
                         {
-														// There is a situation where the InnerException contains
-														// InternalServerError (the 500 HTTP code) although the
-														// code _is_ HttpStatusCode.OK. Keeping this open will
-														// leak memory massively!!
-														// As per LL's instructions, we ought to consider this a
-														// 'request to close client' even though it's improperly
-														// formatted... (gwyneth 202204139)
-														if (error.InnerException.Message == "InternalServerError")
+														// see comment above (gwyneth 20220414)
+														Logger.Log($"Unrecognized internal caps exception from {_Address}: '{error.InnerException.Message}'",													Helpers.LogLevel.Warning);
+														Logger.Log("\nMessage ---\n{error.Message}",				Helpers.LogLevel.Warning);
+														Logger.Log("\nHelpLink ---\n{ex.HelpLink}",					Helpers.LogLevel.Warning);
+														Logger.Log("\nSource ---\n{error.Source}",					Helpers.LogLevel.Warning);
+														Logger.Log("\nStackTrace ---\n{error.StackTrace}",  Helpers.LogLevel.Warning);
+														Logger.Log("\nTargetSite ---\n{error.TargetSite}",  Helpers.LogLevel.Warning);
+														if (error.Data.Count > 0)
 														{
-																Logger.Log("Grid sent us back an Internal Server Error, but HTTP code was 200, not 500 -- closing connection",
-																	Helpers.LogLevel.Warning);
-
-																_Running = false;
-																_Dead = true;
-																break;
-														}
-														else
-														{
-																Logger.Log($"Unrecognized internal caps exception from {_Address}: {error.InnerException.Message}",
-																	Helpers.LogLevel.Warning);
+																Logger.Log("  Extra details:",									Helpers.LogLevel.Warning);
+																foreach (DictionaryEntry de in error.Data)
+																	 Logger.Log(String.Format("    Key: {0,-20}      Value: {1}",
+																			"'" + de.Key.ToString() + "'", de.Value),
+																			Helpers.LogLevel.Warning);
 														}
                         }
                         else
@@ -206,7 +235,7 @@ namespace OpenMetaverse.Http
                                 Helpers.LogLevel.Warning);
                         }
                         break;
-                }
+                }	// end switch
 
                 #endregion Error handling
             }