Brian H

If the Factory reset didn't cure the strangeness. Another possibility is you got a bad one. This was a new module not one from the recertified list? I have gotten bad ones from the recertified sales. One of the supposed 100% checked On-Off modules. Rattled and the insides where missing all the mounting screws and insulators.

If the PLM is on the UPS. Its power line conditioning will probably kill the Insteon power line signals as noise. Others have had a few Dual Band devices close enough. So the Insteon RF commands from the PLM work fine.

Normal as pointed out. Since battery operated devices go in to a power saving mode and will no respond to a Query. Even if you have Query modules at restart enabled in the ISY Administrative console. It will be blank until it sends a On Off or I believe it also has a heartbeat.

The recommendation to disconnect the I/O Linc for a few days and see if the problem continues. Would help in seeing if it is a Insteon issue.

What hardware revision is your 2450 I/OLinc? I did some snooping in a few revisions. The original 1.0 has a very wimpy power supply. 1.8 was better and 2.3 was beefier. So if yours is an older one it maybe failing hardware wise. http://forum.universal-devices.com/topic/21417-io-linc-hardware-differences-between-revisions/

The 2466S is an older power line only module. So power line noise could effect it being added. Even from a different device.

May not have been similar enough for the direct swap. New one may have added features the older one did not have. I saw the same thing with the new On/Off module. Was not close enough to an old 2456S3 ApplianceLinc for the swap.

Can't comment on your 2466SW specifically but I do know older firmware in many model modules. Act in a similar way. To what you are describing with no long beep. On a Factory Reset. I did find a manual indicating >5.0 and it does indicate the long beep and then two short beeps. It is possible it has failed.

Sorry I misread your last answer. If the PLM Link Count is still 0. That is definitely a problem. Have you tried a support message to UDI. They are fantastic with their customer support. http://www.universal-devices.com/contact-support/

40 maybe low. It may depend on how many devices you have.

At no point in the procedures. Did you use a Delete Modem (PLM) command?

Most of the Insteon modules. Have one or two 5 pin programming connector and need a programmer connected to change the firmware. Most are also power line derived power supplies. Done incorrectly you could end up landing on the place you sit down or worse electrical shock. My 2456S ApplianceLinc modules have the Logic +5 Volt supply directly connected to the 120 volt AC Line Input . One of the programming pad connections.

I looked at the transformers manual. Does yours have an internal timer adjustment triggered by a photocell to determine when the LED light come on? Maybe an option as manual was not 100% clear. I did see the optional output for added mechanical timers. I did see it could be used with an AC dimmer on the AC Line input. Rated to be used with inductive loads.

I have seen with my PLM from Amazon. Depending on when I searched. The default sellers page sometime was different. depending on when I did the search.

If the mechanical timers could be powered from the outlet on the side. 120 volts AC sounds more like it. Where the timers controlling the AC line Input to the transformer or switching the 12 volts to the lights. Controlling the AC input sounds more logical. Before trying a SwitchLinc Dimmer. I would check the transformers specifications ans verify they can be controlled by a dimmer on the 120 volt primary input.

If you use Amazon. Check if it is an Amazon sold and shipped or a Amazon Marketplace vendor and shipped by Amazon. I got a 2413S PLM sold and shipped by Amazon. Was the latest V2.3 hardware. I have seen reports here some got Amazon Marketplace PLMs and they were an older V2.2. Warranty may also bee different if the vendor is not an authorized distributor.

The 2457D2 LampLinc is a 120 VAC module. You where using the 12 VAC on the low voltage side of the transformer to run the LampLinc and it actually worked? It has one of the small switching ICs in it so I guess it maybe possible. I suspect it was using Insteon RF signals from a nearby Dual Band device. As I doubt the Insteon power line commands making it through the transformer. It maybe damaged. 12 volt lights may draw more current at a lower voltage. Take and plug a standard 120 volt light in it and see how it acts. In a 120 volt outlet. With no Load on the output outlet. If you push the On button does it stay On or cycle back Off? You could try a factory reset and see if anything changes. Do you know if the lighting transformer is made to work with a dimmer?

Also when powering back up. Power up the PLM first so it can fully initialize before powering up the ISY994i.

I just tested my ISY99i. Firmware 3.3.10. No PLM. It went into Safe Mode as we thought. I think in the Safe Mode. The Network add on may not do much.

If you do a Show PLM Link Table test in the Tools Diagnostics a few times. If it is almost empty. That would be another sign the PLM has power supply issues. PLM Info/Status if it shows safe mode also can be an indicator. Long thread here on how the PLM may fail and how some have fixed theirs with new capacitors. http://forum.universal-devices.com/topic/13866-repair-of-2413s-plm-when-the-power-supply-fails/

The 2474DWH is a two wire dimmer. Steals its power through the Load. Load has to be an Incandescent or 120 Volt equivalent halogen bulb. It will not work with anything else. Like CFL, LED bulbs, inductive things like motors. 2477D can be used as a controller for other Insteon Modules. Supplying the AC Line {Black} and Neutral {White} power connections. Can control a Load if the Red wire is connected and not capped off.

Both the Alert Module and now the Siren Module. Go way back before the takeover. They still are not supported properly due to Smartlabs not giving the needed information in a timely manner. I too lately have seen Smartlabs reluctance to give UDI the needed information. I have reservation on their relationship myself.

The 2992-222 Range Extender. Is actually a 2457D2 Lamplinc with out the dimming parts and probably difference firmware. A full feature Dual Band module is not much more costly and it allows you more options.

Thank you for the heads up on how crafty the Spammers are now getting. I will have to look more closely in forums I attend or moderate.

Does not have to be something new. Can be something moved to a different location. Dual Band device like a 2443 Access Point going south and no longer getting the Insteon commands to the other power line. If you have any Access Points see if they are hardware 2.0 or higher. They have the same power supply issues as the 2413S PLMs. Though the Scene showing off and the lights are On maybe a clue.