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 · 07-17-2026

@victoriabardy wrote:We had an incident where our WLC crashed and it looks like it was caused because a radioactive trace was left running. If a trace is left active, and there is nothing else wrong with the WLC, could the trace cause the WLC to cra...

Leo Laohoo · 07-17-2026

@wma Direct upgrade from 17.3.X (and earlier) to 17.12.X (and later) is not supported in the 1000-series router. I have written numerous responses warning people that this was originally not documented by Cisco because the developers were too lazy...

Leo Laohoo · 07-17-2026

Did rebooting the APs have any improvement(s)?

Leo Laohoo · 07-17-2026

Put the AP near the window, let the GPS do it's work and then move the AP back to it's intended location as soon as the Regulatory Domain has been acquired.

Leo Laohoo · 07-17-2026

Thanks, @balaji.bandi There is a "history" about my comment.

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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: Can leaving a radioactive trace on cause a cisco 9800 wlc to crash

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

Re: Client Authentication failed due to M1 or M3 retransmit max tries

Re: Cisco 9716 AP failed to update regulatory domain on 9800 with17.15

Re: Catalyst 8200L Software Upgrade