Unifi switch refusing to adopt

[tomcarver]

I've got an older Unifi 8 Port 150 watt POE Switch and when I moved over to a new cloud key controller this morning (13th Feb), it didn't come back online. I've tried factory resetting and re adopting but it just keeps saying connection lost. Anyone got any ideas? 

[Davit2005]

Are you on flat network? Or do do have specific vlans?? 

 

Thinking along the lines of the uplink connected switch port not configured correctly

Edited February 13 by Davit2005

[tomcarver]

On a flat network, we used to have a separate admin network, but they are all on one now. I also have a 24 Port POE Unifi switch that I reset in order to adopt after moving controllers and that went through and worked fine. The uplink I think is into another Unifi Switch, although I do have a HP Switch in the Cab, so will try moving it to that.

Edited February 13 by tomcarver

[AlphamaleZed]

if the uplink is on another switch try adopting on the main switch first to see if it works.

[tomcarver]

Our new cloud key is another cab and plugged into a HP Switch as the cab where the old one is, has no space left for a full size rackmount, I'm due to tidy up that cab, so can try move it back if needs be

[AlphamaleZed]

can you not temporarily just plug up to see?

 

the hp switch what model is it and its not doing any LAGs or LACP?

[ZeroHour]

Do you happen to use the DHCP Option 43 entry to set the inform/unifi ip address?

Is your new key using the same ip as the old one internally?

I have not used the CloudKey before so not sure if it has its own quirks for setup.

[Primus]

Have you tried SSHing into it and issuing the set-inform command?

[tomcarver]

I'll try temporary plugging it in after Half Term, as I'm not based at that school. HP switch is a HPE OfficeConnect Switch 1920S

[tomcarver]

14 minutes ago, ZeroHour said:

Do you happen to use the DHCP Option 43 entry to set the inform/unifi ip address?

Is your new key using the same ip as the old one internally?

I have not used the CloudKey before so not sure if it has its own quirks for setup.

It's using a different IP Address as the old one was still plugged in, but when I remove the old one after Half Term, I can set it back to what the old was

[tomcarver]

15 minutes ago, ZeroHour said:

Do you happen to use the DHCP Option 43 entry to set the inform/unifi ip address?

Is your new key using the same ip as the old one internally?

I have not used the CloudKey before so not sure if it has its own quirks for setup.

What's strange is though, that the other Unifi switch we have, worked first time on this new IP Address. I'm hoping soon the school will buy some new switches as they supposedly looking at Unifi Protect as well

[tomcarver]

28 minutes ago, AlphamaleZed said:

can you not temporarily just plug up to see?

 

the hp switch what model is it and its not doing any LAGs or LACP?

I'll try temporary plugging it in after Half Term, as I'm not based at that school. HP switch is a HPE OfficeConnect Switch 1920S

[ZeroHour]

Both running the same firmware version?

Did you factory reset using the old controller or physically on the switch?

 

10 minutes ago, Primus said:

Have you tried SSHing into it and issuing the set-inform command?

I would try doing this ^^

 

https://lazyadmin.nl/home-network/unifi-set-inform/

 

[tomcarver]

1 minute ago, ZeroHour said:

Both running the same firmware version?

 

I would try doing this ^^

 

https://lazyadmin.nl/home-network/unifi-set-inform/

 

Excellent thanks! Will give that a try after the holidays!

[Davit2005]

I would check for option 42 though on DHCP server as others have mentioned as I don't know if that will override setting the inform or not?? 🙂

 

Someone correct me 🙂

Edited February 13 by Davit2005