About Do Tien Dung

Do Tien Dung · 11-26-2024

My company currently has many Cisco Access Point devices with model 1850i errorThe device has a faulty Poe power source and cannot be used.I have created an RMA request to replace the faulty device with another deviceIn the contract, my company purch...

Do Tien Dung · 08-08-2023

I went inside ROMMON moved Access Point 1852i to part1 and part2 but my device still can't access the inside.I did a hardware reset but it didn't workDisplay messageNo valid user found, please configure a valid user from Controller% Authentication fa...

Do Tien Dung · 08-07-2023

I configure Access Point C1131 in autonomous mode, I create free SSID for everyone to connect.Can I see a list of devices connected to my Access Point on the GUI?

Do Tien Dung · 08-04-2023

I have old devices, can I change to another device that has expired?Or replace it with a newer device for my company ?

Do Tien Dung · 06-21-2023

I built Cisco Prime Inf and added my company's Access Point devices,If I don't have a license, will my Access Points be removed from Cisco Prime?Evaluation mode will limit what features and how long to try it?

Do Tien Dung · 05-19-2025

Happy 25th anniversary! Cisco!

Do Tien Dung · 04-24-2025

Hi @Guillaume Martineau ,Contact the company, and open a case with TACThey will support you if the contract is still valid,or you can contact your equipment supplier for the best support

Do Tien Dung · 02-27-2025

I am supporting them, their physical model is to take 1 access point in ME mode to use the virtual controller, the remaining access points can join the controller of that access point.

Do Tien Dung · 11-28-2024

Thanks you @Rich R @Haydn Andrews I will update the comment after 10 days

Do Tien Dung · 08-14-2023

If the hardware is faulty, I think RMA should be, and if the Access Point's software is faulty, I think it should be updated to the latest version.

Member Since	‎09-04-2020 10:42 AM
Date Last Visited	‎10-23-2025 04:03 AM
Posts	42
Total Helpful Votes Received	3

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Replace defective Cisco Access Point - RMA - Paying fees and taxes

Cisco 1852i Lightweight to Mobility Express in rommon

Can I see the devices connected to my c1130 access point?

Can old devices be exchanged and replaced with new ones?

Use Cisco Prime 3.10 without license

Re: 25 things about Cisco Community

Re: license cisco firepower 2110

Re: Add AP1852i to my home setup

Re: Replace defective Cisco Access Point - RMA - Paying fees and taxes

Re: AP1852I