Cisco WSA AsyncOS offline upgrade

Weiwen_17 — Fri, 20 Jun 2025 03:17:28 GMT

Hi Everyone,

I am performing an offline upgrade for Cisco WSA. I am trying to download firmware package from http://updates.ironport.com/fetch_manifest.html. and the download link is not working. I just wanna check if there's an alternate site to download the firmware?

Thank you

Best regards

Weiwen

Re: Cisco WSA AsyncOS offline upgrade

wajidhassan — Fri, 11 Jul 2025 16:06:02 GMT

It’s not just you — many users report issues accessing http://updates.ironport.com/fetch_manifest.html, especially when performing offline upgrades of Cisco WSA (AsyncOS). The Cisco Community thread confirms this link frequently fails, and there’s no reliable alternate public mirror.

Why the Download Link Might Fail
Based on user-reported experiences:

The link often stops working partway through the download process

One user discovered that without a Virtual License Number (VLN), the system refuses: the manifest generation fails unless the correct serial number or VLN is provided and validated
Cisco Community

What You Can Do Instead
1. Confirm You Have a Valid VLN or Serial Number
WSA virtual instances require a VLN; physical models use the serial number.

Without a validated license, Cisco update servers won’t allow manifest generation or firmware download.

Use CLI command showlicense (virtual) or confirm via /show version (physical).

2. Try a Different Browser or Network
Some user reports suggest the Cisco UI may misbehave in certain browsers (Chrome vs Firefox), or may fail due to local network/firewall restrictions.

3. Use a Local Web Server & Host the Files Yourself
Once you successfully download the zip file:

Host it on a local IIS or Apache server with anonymous access.

Unzip into a root directory preserving folder structure (asyncos/coeus-… etc.).

Point your WSA upgrade settings to that local server (URL of the manifest XML).

4. If Download Still Fails → Contact Cisco TAC or Entitlements
One accepted solution:

Cisco TAC can manually provide the download link if you provide:

Model and serial number or VLN

Current and target AsyncOS version

Contract entitlements or proof of purchase

Use email ent-dl@cisco.com to request the file directly—even without a maintenance contract—for security-related updates.

Summary
Issue Recommendation
Fetch manifest link broken Validate VLN/serial and retry ✔️
Download stops or fails Try a different browser (Firefox) and network
Cannot access Cisco Update servers Use local web server method after zip download
Still unsuccessful Contact Cisco TAC or send email to ent-dl@cisco.com for manual download

Re: Cisco WSA AsyncOS offline upgrade

amojarra — Sat, 26 Jul 2025 15:49:59 GMT

hello @Weiwen_17

I hope you are doing fine

if the Download link is still not working or you are not able to get the download link, kindly contact TAC and share the device sErial number to check in our internal Database.

sometimes the URL might be down, due to maintenance or ..., but in general, it should be up and running..

Regards,

Amirhossein Mojarrad

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Cisco WSA AsyncOS offline upgrade

Re: Cisco WSA AsyncOS offline upgrade

Re: Cisco WSA AsyncOS offline upgrade