Yes, I do. 

On Friday, February 6th, 2026 at 8:36 AM, Dave Crawford <k0ksi@bluevalley.net> wrote:

Can you use the same certificate on two different computers?

73.

Dave

KØKSI

On Feb 6, 2026, at 8:12 AM, Ken Kopp - AKØA <ken@ak0a.net> wrote:

Once you have everything all set up, click on "File," then "Backup Station Locations, Certificates and Preferences..." It will generate a tqslconfig.tbk file. Save it to a backup device. You can move/restore to any computer.  

73, 
Ken 

On Friday, February 6th, 2026 at 7:38 AM, Michael Philbrick <philbrick52@gmail.com> wrote:

Nope, it hadn't expired. It was set to expire next month.

On Thu, Feb 5, 2026 at 10:41 AM David Crawford <dcrawford2020@gmail.com> wrote:

Mike,

A certificate is “tied” to a specific computer. Your old one probably expired.

Dave

Sent from my iPhone

On Feb 5, 2026, at 10:28 AM, Michael Philbrick <philbrick52@gmail.com> wrote:



Good morning fellow hams,

Information only for those with a Logbook of the World account with ARRL. The story is I had setup a LotW account with ARRL. At some point in time, I replaced a computer with a newer model of an old computer. I have never really been interested too much in special things that a ham can investigate and/or participate in, but the Worked All States (WAS) for the 250th did get my attention. That ham activity requires using LotW. So, I began trying to setup that app on my present ham computer. I have my original postcard from ARRL and I found my 3+ years old email with my trusted certificate file. I could eventually login and see my QSO/QSL history, my certificate number, and my certificate dates. However, many features are grayed out. I cannot upload my tq6 special file and the reason popup states it is because "this is not the computer you requested your certificate". I suppose it is a MAC addressing issue. That's the only way that makes any sense to me that ARRL could be filtering access. There are several YouTubes on setting up your LotW account. I didn't find one on what happens if your computer crashed or if you upgraded to a different computer. Yes, a little perturbed, but now awaiting an email with new certificate.

--

Michael Philbrick

Odd Job Technician

Retired Guys LLC (fictional)

Cousin to my genealogy relatives

NØUDF to hams

Retired science/CTE educator

Seneca, KS

mdp.seneca@gmail.com

https://www.facebook.com/michael.philbrick/

785-294-2719

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--

Michael Philbrick

Odd Job Technician

Retired Guys LLC (fictional)

Cousin to my genealogy relatives

NØUDF to hams

Retired science/CTE educator

Seneca, KS

mdp.seneca@gmail.com

https://www.facebook.com/michael.philbrick/

785-294-2719

______________________________________________________________
MCARC mailing list
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Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:MCARC@mailman.qth.net

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Please help support this email list: http://www.qsl.net/donate.html

______________________________________________________________
MCARC mailing list
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Help: http://mailman.qth.net/mmfaq.htm
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Please help support this email list: http://www.qsl.net/donate.html