diff --git a/changelog.md b/changelog.md
index 2cd1188..30e608b 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## 2026-02-07 - 1.17.2 - fix(registry)
+improve HTTP fetch retry logging, backoff calculation, and token-cache warning
+
+- Include HTTP method in logs and normalize method to uppercase for consistency
+- Log retry attempts with method, URL and calculated exponential backoff delay
+- Compute and reuse exponential backoff delay variable instead of inline calculation
+- Log error when a 5xx response persists after all retry attempts and when fetch ultimately fails
+- Add a warning log when clearing cached token after a 401 response
+
 ## 2026-02-07 - 1.17.1 - fix(registrycopy)
 add fetchWithRetry wrapper to apply timeouts, retries with exponential backoff, and token cache handling; use it for registry HTTP requests
 
diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index 7edf473..060950d 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@git.zone/tsdocker',
-  version: '1.17.1',
+  version: '1.17.2',
   description: 'develop npm modules cross platform with docker'
 }
diff --git a/ts/classes.registrycopy.ts b/ts/classes.registrycopy.ts
index b37f08a..b48e6c3 100644
--- a/ts/classes.registrycopy.ts
+++ b/ts/classes.registrycopy.ts
@@ -31,26 +31,36 @@ export class RegistryCopy {
     timeoutMs: number = 300_000,
     maxRetries: number = 3,
   ): Promise<Response> {
+    const method = (options.method || 'GET').toUpperCase();
     let lastError: Error | null = null;
     for (let attempt = 1; attempt <= maxRetries; attempt++) {
       try {
+        if (attempt > 1) {
+          logger.log('info', `Retry ${attempt}/${maxRetries} for ${method} ${url}`);
+        }
         const resp = await fetch(url, {
           ...options,
           signal: AbortSignal.timeout(timeoutMs),
         });
         // Retry on 5xx server errors (but not 4xx)
         if (resp.status >= 500 && attempt < maxRetries) {
-          logger.log('warn', `Request to ${url} returned ${resp.status}, retrying (${attempt}/${maxRetries})...`);
-          await new Promise(r => setTimeout(r, 1000 * Math.pow(2, attempt - 1)));
+          const delay = 1000 * Math.pow(2, attempt - 1);
+          logger.log('warn', `${method} ${url} returned ${resp.status}, retrying in ${delay}ms (attempt ${attempt}/${maxRetries})...`);
+          await new Promise(r => setTimeout(r, delay));
           continue;
         }
+        if (resp.status >= 500) {
+          logger.log('error', `${method} ${url} returned ${resp.status} after ${maxRetries} attempts, giving up`);
+        }
         return resp;
       } catch (err) {
         lastError = err as Error;
         if (attempt < maxRetries) {
           const delay = 1000 * Math.pow(2, attempt - 1);
-          logger.log('warn', `fetch failed (attempt ${attempt}/${maxRetries}): ${lastError.message}, retrying in ${delay}ms...`);
+          logger.log('warn', `${method} ${url} failed (attempt ${attempt}/${maxRetries}): ${lastError.message}, retrying in ${delay}ms...`);
           await new Promise(r => setTimeout(r, delay));
+        } else {
+          logger.log('error', `${method} ${url} failed after ${maxRetries} attempts: ${lastError.message}`);
         }
       }
     }
@@ -231,6 +241,7 @@ export class RegistryCopy {
     // Token expired — clear cache so next call re-authenticates
     if (resp.status === 401 && token) {
       const cacheKey = `${registry}/${`repository:${repo}:${actions}`}`;
+      logger.log('warn', `Got 401 for ${registry}${path} — clearing cached token for ${cacheKey}`);
       delete this.tokenCache[cacheKey];
     }