gary333

Does your smart meter use your Wifi for it's comms or a mobile date connection. It sounds like it is interfering with your wifi and may actually be faulty. ( or just poorly shielded).

Do any present day (utility provided) smart meters use customer side WiFi for any comms?

I was under the distinct impression that all SMETS1 and 2 meters used their own locked down WAN connection and the in-house HAN (meter to display and leccy to gas meter) was all locked-down Zigbee.

Edited by Pheasant (Wed 01-Sep-21 05:59:08)

In reply to a post by Pheasant:

I was under the distinct impression that all SMETS1 and 2 meters used their own locked down WAN connection and the in-house HAN (meter to display and leccy to gas meter) was all locked-down Zigbee.

Zigbee runs on 2.4 GHz, so if faulty???

Possibly a lack of caffeine, dunno 😎, but I was thinking 868 MHz Zig when I wrote that earlier.

To troubleshoot the meter, you'd need to pull the main DNO fuse...or otherwise shield the meter to see if it helps. Then if the gas meter is smart, that would need to be likewise shielded....then if its the neighbours....

In reply to a post by Pheasant:

Possibly a lack of caffeine, dunno 😎, but I was thinking 868 MHz Zig when I wrote that earlier.

I thought that was US only? But I'm likely wrong!!

To troubleshoot the meter, you'd need to pull the main DNO fuse...or otherwise shield the meter to see if it helps. Then if the gas meter is smart, that would need to be likewise shielded....then if its the neighbours....

Can everyone pull the DNO fuse? Sounds like a question for UKPN.

Believe that 868 is for Europe and North America is 915. Global is 2.4.

Think there’s some limited deployment now of 868 for smart meter HAN now, but not 100% on that.

DNO fuses should by rights only to be pulled by the DNO or their authorised reps like meter installers etc, but in my experience sparks will jfdi if they’re working on the supply side of the wiring, before the CU and need the wiring fully isolated.

I wouldn’t ever recommend an untrained person do this though. There’s absolutely no protection should something happen.

In reply to a post by kitcat:

gary333

Does your smart meter use your Wifi for it's comms or a mobile date connection. It sounds like it is interfering with your wifi and may actually be faulty. ( or just poorly shielded).

The smart meter is in the "North" so uses the 423mhz for RF comms with Arqiva for it's comms back to base to transmit 30 min meter reads and such like. The comms unit itself has 2.4ghz to connect internally via Zigbee. I also have issues with that device (the in-home display unit seemingly losing connection often, so I don't use it anymore).

The 868mhz Zigbee as far as I know is available for houses with really poor signal, but wasn't when I got my meters installed last year. I know it costs the supplier more for that version so it's not the default frequency.

Unfortunately even the 868mhz band was being inteferred with (by whatever the mystical problem is) as I spent months trying to get my Evohome to work correctly, but even Honeywell couldn't get to the bottom of what was going on (so I had to switch to Tado).

In reply to a post by jchamier:

In reply to a post by Pheasant:

Possibly a lack of caffeine, dunno 😎, but I was thinking 868 MHz Zig when I wrote that earlier.

I thought that was US only? But I'm likely wrong!!

To troubleshoot the meter, you'd need to pull the main DNO fuse...or otherwise shield the meter to see if it helps. Then if the gas meter is smart, that would need to be likewise shielded....then if its the neighbours....

Can everyone pull the DNO fuse? Sounds like a question for UKPN.

Unfortunately not even electricians are supposed to pull the fuse unless they are authorised by the DNO (at least in my area - Northern Power). Luckily for me my dad is an electrician so does have some of the security tags, so in theory yes we could pull out the main fuse.

Your place isn’t sited over an ancient ley line by any chance? 😎

In reply to a post by Pheasant:

Your place isn’t sited over an ancient ley line by any chance? 😎

Hehe. No, but it is sited over an old hospital, so makes me wonder if they burried the x-ray machines and other radioactive waste lol.