diff --git a/src/config.d b/src/config.d
index 2972aa19..40d51527 100644
--- a/src/config.d
+++ b/src/config.d
@@ -59,6 +59,7 @@ final class Config
 		boolValues["check_nosync"] = false;
 		boolValues["download_only"] = false;
 		boolValues["disable_notifications"] = false;
+		boolValues["disable_download_validation"] = false;
 		boolValues["disable_upload_validation"] = false;
 		boolValues["enable_logging"] = false;
 		boolValues["force_http_2"] = false;
@@ -118,6 +119,9 @@ final class Config
 		longValues["sync_file_permissions"] = defaultFilePermissionMode;
 		// Configure download / upload rate limits
 		longValues["rate_limit"] = 0;
+		// maximum time an operation is allowed to take
+		// This includes dns resolution, connecting, data transfer, etc.
+		longValues["operation_timeout"] = 3600;		
 
 		// Webhook options
 		boolValues["webhook_enabled"] = false;
@@ -140,10 +144,6 @@ final class Config
 		// - It may be desirable to see what options are being passed in to performSync() without enabling the full verbose debug logging
 		boolValues["display_sync_options"] = false;
 
-		// maximum time an operation is allowed to take
-		// This includes dns resolution, connecting, data transfer, etc.
-		longValues["operation_timeout"] = 3600;
-
 		// Determine the users home directory.
 		// Need to avoid using ~ here as expandTilde() below does not interpret correctly when running under init.d or systemd scripts
 		// Check for HOME environment variable
@@ -340,6 +340,9 @@ final class Config
 				"disable-notifications",
 					"Do not use desktop notifications in monitor mode.",
 					&boolValues["disable_notifications"],
+				"disable-download-validation",
+					"Disable download validation when downloading from OneDrive",
+					&boolValues["disable_download_validation"],
 				"disable-upload-validation",
 					"Disable upload validation when uploading to OneDrive",
 					&boolValues["disable_upload_validation"],
diff --git a/src/main.d b/src/main.d
index bd0740b9..827b7697 100644
--- a/src/main.d
+++ b/src/main.d
@@ -870,6 +870,9 @@ int main(string[] args)
 
 	// Do we configure to disable the upload validation routine
 	if (cfg.getValueBool("disable_upload_validation")) sync.setDisableUploadValidation();
+	
+	// Do we configure to disable the download validation routine
+	if (cfg.getValueBool("disable_download_validation")) sync.setDisableDownloadValidation();	
 
 	// Has the user enabled to bypass data preservation of renaming local files when there is a conflict?
 	if (cfg.getValueBool("bypass_data_preservation")) {
diff --git a/src/sync.d b/src/sync.d
index 95e293a9..54c9df25 100644
--- a/src/sync.d
+++ b/src/sync.d
@@ -27,6 +27,9 @@ private bool uploadOnly = false;
 // Do we configure to disable the upload validation routine
 private bool disableUploadValidation = false;
 
+// Do we configure to disable the download validation routine
+private bool disableDownloadValidation = false;
+
 private bool isItemFolder(const ref JSONValue item)
 {
 	return ("folder" in item) != null;
@@ -451,6 +454,7 @@ final class SyncEngine
 			// If account type is documentLibrary - then most likely this is a SharePoint repository
 			// and files 'may' be modified after upload. See: https://github.com/abraunegg/onedrive/issues/205
 			if(accountType == "documentLibrary") {
+				// set this flag for SharePoint regardless of --disable-upload-validation being used
 				setDisableUploadValidation();
 			}
 		
@@ -556,6 +560,18 @@ final class SyncEngine
 		log.vdebug("documentLibrary account type - flagging to disable upload validation checks due to Microsoft SharePoint file modification enrichments");
 	}
 	
+	// Configure disableDownloadValidation if function is called
+	// By default, disableDownloadValidation = false;
+	// Meaning we will always validate our downloads
+	// However, when downloading files from SharePoint, the OneDrive API will not advise the correct file size 
+	// which means that the application thinks the file download has failed as the size is different / hash is different
+	// See: https://github.com/abraunegg/onedrive/discussions/1667
+	void setDisableDownloadValidation()
+	{
+		disableDownloadValidation = true;
+		log.vdebug("Flagging to disable download validation checks due to user request");
+	}
+	
 	// Issue #658 Handling
 	// If an existing folder is moved into a sync_list valid path (where it previously was out of scope due to sync_list), 
 	// then set this flag to true, so that on the second 'true-up' sync, we force a rescan of the OneDrive path to capture any 'files'
@@ -2891,36 +2907,62 @@ final class SyncEngine
 			}
 			// file has to have downloaded in order to set the times / data for the file
 			if (exists(path)) {
-				// A 'file' was downloaded - does what we downloaded = reported fileSize or if there is some sort of funky local disk compression going on
-				// does the file hash OneDrive reports match what we have locally?
-				string quickXorHash = computeQuickXorHash(path);
-				string sha1Hash = computeSha1Hash(path);
+				// When downloading some files from SharePoint, the OneDrive API reports one file size, but the SharePoint HTTP Server sends a totally different byte count
+				// for the same file
+				// we have implemented --disable-download-validation to disable these checks
 				
-				if ((getSize(path) == fileSize) || (OneDriveFileHash == quickXorHash) || (OneDriveFileHash == sha1Hash)) {
-					// downloaded matches either size or hash
-					log.vdebug("Downloaded file matches reported size and or reported file hash");
-					try {
-						log.vdebug("Calling setTimes() for this file: ", path);
-						setTimes(path, item.mtime, item.mtime);
-					} catch (FileException e) {
-						// display the error message
-						displayFileSystemErrorMessage(e.msg, getFunctionName!({}));
+				if (!disableDownloadValidation) {
+					// A 'file' was downloaded - does what we downloaded = reported fileSize or if there is some sort of funky local disk compression going on
+					// does the file hash OneDrive reports match what we have locally?
+					string quickXorHash = computeQuickXorHash(path);
+					string sha1Hash = computeSha1Hash(path);
+					
+					if ((getSize(path) == fileSize) || (OneDriveFileHash == quickXorHash) || (OneDriveFileHash == sha1Hash)) {
+						// downloaded matches either size or hash
+						log.vdebug("Downloaded file matches reported size and or reported file hash");
+						try {
+							log.vdebug("Calling setTimes() for this file: ", path);
+							setTimes(path, item.mtime, item.mtime);
+						} catch (FileException e) {
+							// display the error message
+							displayFileSystemErrorMessage(e.msg, getFunctionName!({}));
+						}
+					} else {
+						// size error?
+						if (getSize(path) != fileSize) {
+							// downloaded file size does not match
+							log.vdebug("File size on disk:          ", getSize(path));
+							log.vdebug("OneDrive API reported size: ", fileSize);
+							log.error("ERROR: File download size mis-match. Increase logging verbosity to determine why.");
+						}
+						// hash error?
+						if ((OneDriveFileHash != quickXorHash) || (OneDriveFileHash != sha1Hash))  {
+							// downloaded file hash does not match
+							log.vdebug("Actual file hash:           ", OneDriveFileHash);
+							log.vdebug("OneDrive API reported hash: ", quickXorHash);
+							log.error("ERROR: File download hash mis-match. Increase logging verbosity to determine why.");
+						}
+						// add some workaround messaging
+						if (accountType == "documentLibrary"){
+							// It has been seen where SharePoint / OneDrive API reports one size via the JSON 
+							// but the content length and file size written to disk is totally different - example:
+							// From JSON:         "size": 17133
+							// From HTTPS Server: < Content-Length: 19340
+							// with no logical reason for the difference, except for a 302 redirect before file download
+							log.error("INFO: It is most likely that a SharePoint OneDrive API issue is the root cause. Add --disable-download-validation to work around this issue but downloaded data integrity cannot be guaranteed.");
+						} else {
+							// other account types
+							log.error("INFO: Potentially add --disable-download-validation to work around this issue but downloaded data integrity cannot be guaranteed.");
+						}
+						
+						// we do not want this local file to remain on the local file system
+						safeRemove(path);	
+						downloadFailed = true;
+						return;
 					}
 				} else {
-					// size error?
-					if (getSize(path) != fileSize) {
-						// downloaded file size does not match
-						log.error("ERROR: File download size mis-match. Increase logging verbosity to determine why.");
-					}
-					// hash error?
-					if ((OneDriveFileHash != quickXorHash) || (OneDriveFileHash != sha1Hash))  {
-						// downloaded file hash does not match
-						log.error("ERROR: File download hash mis-match. Increase logging verbosity to determine why.");
-					}	
-					// we do not want this local file to remain on the local file system
-					safeRemove(path);	
-					downloadFailed = true;
-					return;
+					// download checks have been disabled
+					log.vdebug("Downloaded file validation disabled due to --disable-download-validation ");
 				}
 			} else {
 				log.error("ERROR: File failed to download. Increase logging verbosity to determine why.");