I have tried everything. This gateway has been running flawlessly for about 7 years now. Suddenly, it is off-line and I can’t figure out why. I have checked the POE cables, and they are all good. I even brought it inside to see if I could figure it out, but no luck.
When I plug the POE in, I get 2 blue lights that flash a few times on the main (POE) board, after which the blue lights on the LTE board flash intermittently (I have no SIM in the LTE modem).
The device no longer shows up on my network AT ALL and my router does not see anything attached to the port. The light on the POE power module is green, so I assume the power is good.
I have tried to put a serial cable on the board, but get no output. I even put a USB cable on the micro-USB port, but got nothing.
Any ideas on how to troubleshoot this thing? Or is it just dead?
Don’t know the actual gateway, but power circuitry is often the first thing to go with it’s capacitors, coils/chokes etc. So I’d try powering it directly to see if there is output from the serial &/or it just works. I’d remove the PoE module to do this.
It’s the The Things Network Outdoor Gateway which, granted, is older hardware, but still, it wasn’t cheap! I cannot find a way to power it without the PPoE adapter. Looks like I just have a dead gateway
I meant I’m not familiar with the internals of the TTOG so I can’t comment explicitly on the design of the power circuits. A for cheap, that’s relative, I think you have to hit Space Shuttle build levels for the capacitors to become seriously good, otherwise it’s just down to normal lifetimes & how much work they had to do.
I can’t see why you wouldn’t be able to wire a power supply in to the gateway - or replace the PoE adapter - but @Jeff-UK, our resident custodian of ancient gateway technology can advise further.
@davidgs As mentioned on another recent thread wrt this device
No direct hands on experience with this version. A few thoughts though:-
When testing inside did you use the original PoE adapter or a replacement? 40+ years experience suggestes 'assume nothing"!
IIRC the TTOG was supplied with a Microchip (was MicroSemi) PD-9001GR 802.3at external adaptor (backwards compatible with 802.3af). This I have seen used elsewhere. A client used 4 on a small deployment and after ~12mo (just after warranty ended!) found one had a soft failure. When checking device was ok on light load but drooped on higher load. Couldnt be certain but he noticed spec limits external (ambient/case) temp at higher loads, but was more relaxed at lighter loads. The one that failed had been mounted in an orangery/conservatory/greenhouse like structure and in summer got real chuffing hot! (failed late summer/fall period). Perhaps check your OG unit with alternate feed? Think direct replacements are ~£40-50 + VAT online.
Another possibility is a close proximity lightning strike (not direct hit of course!) inducing a soft fail, that on power cycling turned hard? That may impact either end (in GW or on PoE adaptor) - was that a possibility?
Unit is actually a Browan OEM design/build so suggest perhaps try their tech support for assist - may get schematic for details GW fault tracing or even looking for alternate power injection points? I would be with Nick on the Caps as likely, followed by protection diode(s) or inductors…
