About Leo Laohoo

Leo Laohoo · 12-20-2022

FN - 72520 - Some Cisco DNA Center Appliances Shipped Between September 2022 and November 2022 Have Incorrect Firmware Installed - BIOS/Firmware Upgrade Recommended

Leo Laohoo · 10-28-2022

Read the Release Notes very carefully and go with 17.6.4.

Leo Laohoo · 11-17-2021

Cisco 3850: IOS-XE/Firmware Upgrade (Install Mode) NOTE: This procedure is aimed at Cisco 3850 switch ONLY.IOS-XE Bundle Mode is not covered. 9300, 9500 (vanilla & high-performance), ISR 1k, ISR 4k and ASR is not covered. Router(s) & switch(es) r...

Leo Laohoo · 06-30-2021

NotesA Word from our Sponsors:Introduction:Section 1: General ProcedureSection 2: ROMMON UpgradeSection 3: Cellular Modem Firmware UpgradeSection 4: GOTCHA Notes This procedure is aimed at Cisco ISR 1k, ISR 4k and ASR 1k router ONLY.IOS-XE Bundle Mo...

Leo Laohoo · 12-22-2020

Product Overview: Cisco Prime Infrastructure 3.9 Release Notes: Cisco Prime Infrastructure 3.9 Software Download: Cisco Prime Infrastructure 3.9 Oracle Patch: Cisco Prime Infrastructure 3.9

Leo Laohoo · 05-30-2026

Migration License is not free and needs to be purchased from authorized dealers/vendors.

Leo Laohoo · 05-29-2026

@mauricio-santana wrote:Today I had a case with Cisco TAC, who recommended updating to version 17.18.3. I would be very carefully accepting TAC's recommendation about 17.18.3 without thoroughly reading the Open Caveats section of the 17.18.3 Release ...

Leo Laohoo · 05-29-2026

Either look at the serial number of the AP or look at the Date of Manufacture of the AP found at the back. The Date of Manufacture should be in the "plate" where the AP's serial number is. If based on the Serial Number, FFFyywwabcd where "FFF" is ...

Leo Laohoo · 05-29-2026

First, I have no idea what research have been done but we have been told by Cisco TAC Wireless that they will guarantee 80% FAILURE RATE (conservative) for any upgrades with ISSU starting from 17.3.X, 17.6.X, and 17.9.X. Let me repeat that again: 80...

Leo Laohoo · 05-29-2026

Cisco-branded power injectors came from two manufacturers: 1. PhiHong USA2. Delta Electronics Delta Electronics' website is very hard to find but PhiHong (USA) is easy. Pick a 60wac power injector for the Catalyst 9k APs and then choose if the et...

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FN-72520 -Some Cisco DNA Center Appliances Have Incorrect Firmware

Re: Catalyst 9606r software version election

Cisco 3850: IOS-XE/Firmware Upgrade

Cisco ISR & ASR 1k Routers: IOS-XE/Firmware Upgrade (Install Mode)

Coming to a store near you: Cisco Prime Infrastructure 3.9

Re: Need MPP migration license for CP-8841-3PCC Serial FCH2120E8P3

Re: CW9172I cannot apply country code on WLC 9800-L-F-K9

Re: Direct Catalyst Boot for CW9176I APs

Re: 9800-CL upgrade path from 17.9.3 to 17.15.5 - Peer Review!

Re: CW9172I PoE Injector Issues?