@vigijay: Can you send me a photo of the back panel of the gateway (where the EUI is seen) via a private message?
If I can confirm that you physically own the gateway, I check what needs to be done to allow you to claim it.
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Actually it IS a TTIG 
(Things Indoor GW
What error do you see when you try to register and claim again? The usual problem is re-use of the GW ID as typed into the TTN GW onsle page, but in this case you seem to have changed from fr-1773 to 1773-va, is that correct? When trying again have you double checked actual DEV EUI (GW EUI), which can be re-used, the GW ID is the one that cant be re-used. If added this year for the first time then there woudl be no V2 presence/history (sunset Decā21) or auto V2-V3 nigration issuesā¦hence my question.
Let us know what specific issue is seen on the consoleā¦
Ah @KrishnaIyerEaswaran2 on the case whilst I was typing - heās the man who will sort pronto 
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Many thanks Jeff, I will respond to Krishna and see how far we get - let me know if you are ever in my neck of the woods, there is a beer waiting for you 
Just to satisfy curiosity, this is what happens when trying to claim the GW again - perhaps this will help others with the same issue.
[moderator] Pictures with āsecretsā deleted.
Suggests prior deletion hasnāt taken or some residue stuff in claim databaseā¦. Krishna is your man to get that sorted drop that picture of back of device label to him on PM per his request and he can fix Iām sureā¦.
already done thanks again!
Hello everyone,
I have the same problem. My gateway stucks flashing green fast. After removing from the console I am now not be able to claim it again. Could you release it so that I can claim it again.
Gateway EUI58-A0-CB-FF-FE-80-53-DC
WiFi AP MAC58:A0:CB:80:53:DC
WiFi STA MAC98:CD:AC:17:31:5A
Serial NumberTBMH100868015360
MFG date2022-12-23 17:42:48
FW Build2020-05-07 16:03:53
FW Version2.0.4
Core Version2.0.4(minihub/debug)
No one here, all volunteers including the moderators, have access to the TTN backend systems.
Youāll have to post on #support on Slack - forum search will assist.
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Thank you
Shame you didnāt post more details - turns out you were posting the weekly āGateway ID already usedā which is all over the forum - searching for answers before posting is highly recommended.
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EDIT: I fixed it, had to register via EUI and change the gateway-id manually. Thanks
No, I can provide more informations. I went to slack and followed the instructions but no success so farā¦
Hi, another case of loss of access to a TTIG. Iām a teacher, and in January, with my pupils, we tested LoRa and TTN, and they register gateway, and now I canāt access it.
Reading post I saw that itĀ“s possible to know nick of who have registered a gateway if you know EUI (58a0cbfffe803ad2).
How?
That could help me, because my pupils will not return to the institute for another month.
Thanks in advance.
Iāve bought a TTIG on ebay and discovered afterwards that it isnāt always easy to transfer ownership.
But i wonder if all the outlined trouble is only a result of non-deleting the gw within the old account?
So should it work if the previous owner deletes the gateway on console and i use a new gateway-id?
Or must the cli procedure (ttn-lw-cli gateways claim authorize ) performed anyway?
And if āyesā, so i suppose this must be done by the previous owner?
Apart from this, the TTIG seems to be not recognized as TTIG since i end up in the manual registration when entering the gateway eui for claiming. Or can this also a result of not releasing the gw from the previous owner? Shouldnāt there be an error message instead?
The MAC address of the device is 44:17:93:22:77:79.
So the GW EUI should be 441793fffe227779 ?
But at first i will try to contact the seller again.
If the gateway is still registered, have the previous owner add you as collaborator with full rights. Then you can delete the previous owner.
But why canāt the previous owner delete the gateway himself?
On the label on the back! MAC is the WiFi MAC and for the TTIG (Model TMBH100xxx) is not used to create the GW EUI. All the TTIGās I have seen the numers start 58a0cbxxxxxxxxxx.
As Jac suggests collaboration switch may be easiest but if previously deleted then register (again) with correct EUI, system should then recognise as a TTIG!, and if it offers a GW ID based on EUI ignore and overwrite to your own convenience as possibly used by prior ownerā¦
Some people delete their TTN accounts - forgetting to delete devices and GWās first, hav also (sadly post COVID pandemic) seem GWās put up for sale after original user/owner has died and peope selling have not known what to doā¦remember also always be cautious with ebay purchases - not unknown for devices such as GWās to be passed on and stollen so original owner may not have deleted (or even be aware it had dissapeared!), and physical possession (and hence access to the WiFi pwd as a āclaimā code, is no proof of actual ownership
Yes the previous owner can delete the gateway, however reregistration takes more effort and is more error prone then transferring it the other way.
I am not suggesting to delete the gateway, I am suggesting to change the owner. Note that I didnāt suggest to delete the gateway but to delete the previous owner (from the list of collaborators).
Hm, i do not understand why it should be more error prone to reregister the gateway, but certainly you are right.
Apart from that iām afraid i could be glad if the former owner would delete the Gateway in his list.
I suppose the procedure of changing the owner needs even more cooperation.
For a start you didnāt get the details on the EUI which is what you will need to claim it. And if itās not deleted OK you may well be faced with other issues that prevent claiming.
So if itās already setup, why not leave the setup in place and just transfer it by asking for your user id to be entered as a collaborator with full access - itās no harder than deleting it and you wonāt have to then try to claim it.
You are of course free to do it any way you think is best, but you did ask for guidance!