Brian H

You are using an external wall wart to power the EZIO8SA? When you have a PLM connected to an EZIO8SA. You may see the LED on the PLM flicker as the EZIO8SA programs the PLM to identify as an EZIO8SA's Category and Subcategory as it is a EZIO8SA. Have not done on in awhile but I believe there was a separate place in the add a module list. Is that where you are trying to use it?

V2.4 has the later capacitors and new serial port board. Including the better serial port interface chip and protection on the two serial interface signals.

Yes that is correct. I was incorrect the 2842-222 was the later number for the SkyLinc 2420MS. When they made a few different models for other areas of the world.

2420M is the original Motion Sensor made by SkyLinc. The 2842-222 is the new number given to the original 2420M when they also had different areas of the world.

Yes as the ISY994i is discontinued. All things like add PRO are no longer available.

From the above thread. With no PRO module added. Your limits are much lower. Posted October 12, 2019 The sales page shows. The ISY994i has Max Nodes 254, Max Programs 300. Pro models Max Nodes 1023, Max Programs 1024. The early 2412S link database is like 417 links later 2412S was ~2000 but 800 was what most found before a time out was caused. 2413S is 1000.

FYI The Range Extender is actually a 2457D3 Lamplinc with the dimmer parts not installed. Just for a quick fun. Look at the FCC Number on the Range Extender and your Lamplinc. It will be the same. It may be a device on the effected electrical box. Making power line noise or is a signal sucker and killing the power line signal but the RF maybe still functioning. https://cache.insteon.com/pdf/2992-222-us.pdf

Like the Access Point devices. You do not physically link them into your ISY994i. They just process Insteon messages and resend them back into the system. You can use the built in Communications aka the 4 Tap. To see how it is working with modules.

I also have an ELK ESM1 that shows thing like noise. Also a JV Digital XTBM X10 meter that shows noise and Insteon shows as a corrupt X10 Message. Also built a Oscilloscope adapter ELA posted here. Used an X10 phase coupler with Isolated winding. One was on 120VAC input and the other side was used to output to a scope.

Thank you for doing the tests and reporting the findings. I did something similar on a 2412S power line only PLM. The noise making device is not too uncommon. I started with X10 and we saw similar things there too. The Config File missing has been reported here. The new PLM is probably fine but there is an error in one of the configuration file entries. Maybe helpful to you at sometime. The Access Points where made using two different base boards. Any of the V1 where on the Powerlinc board and worked well. The V2 that also worked well but where built using the same base board as in the 2413 PLM and subject to the same capacitor failures. I had to rebuild both of my V2 Access Points with better replacement capacitors.

I have information on a V2.75 (417 Links) and a V2.9 (2016 Links). I do not have any V2.8 unit to look at. So I can not say if it is the small or large Link Memory.

Yes the 2412S did have a DB9 to RJ45 cable. In the packing material and many tossed it not knowing it was in the box. You would have to convert the DB9 end to USB and double check you got the correct connections. On a USB converter as the serial pins are not the typical DB9 pin out. The eisy serial cable is still the safest. May be the user can give us the revision number on the 2412S. So we maybe able to find out if is the original 417 link database or the 2000 link database. On the ISY994i the 2000 link database would start to miss link at ~ 800 links. Theory was memory too slow and the ISY994i timed out.

No do not use a 2412S. It has a slower speed Link Database and depending on age a 417 Link Database size. It also has a unregulated +12VDC usually close to +18VDC on one of the PLM interface connector.

Near the bottom of the announcement page. It says due to the limited memory space in a Polisy. It is not known if it will be available for that model. Still being evaluated. Hopefully they can get it working for Polisy owners also.

Yes the scene test is worse case. Forces the Hop count to one if memory serves me.

I agree. That is a uncommon problem. It almost sounds like the Link Database ram is starting to go bad and can not be written to above a certain memory location.

I personally would not use it. The EZICOmm #5010k depending on its age could be the real old 2412S PLM or short time sold dual band 2413S. The 2412S has unregulated 12VDC (typically ~18.5VDC) on one of the serial pins on the PLM. It is also quite old and may have the smaller link database memory in it depending on its age. If it has a date sticker on it at may give you a clue.

I would second try a power supply. They are known to be a failure for some of us.

You said you factory reset the PLM. So it was cleaned out of all information and you had to restore all the data.

I have also seen LED flashing sometimes confusing. Depending on the LED color indicating modules on or off. When the test is run. Depending on the phase. The LED may alternate from module status indication and test indication.

In the tap test. If one is flashing Red and the other one is flashing Green. They are on different phases. Red is communicating and on the same phase as the one doing the test. Green is communicating on opposite phases and bridging the commands from one phase to the other phase. The Quick Start manual posted previously should explain the test. Not as critical thees days as the older power line only modules having issues. I have the full manual if you need it but it doesn't say much more. FYI the range extender is a 2477D LampLinc with the dimmer parts missing. Even the same FCC Number.

Most of the Dual Band Modules including the 2413S/U PLM. Have a built in communications test. Called four tap, communications or beacon test. Full users manual usually has the information. Basically you start the test in a module then you go and look at other modules LED. The LED patterns give you information. Like same, opposite line phase, not seeing any signal. On the PLM. Four taps on the set button starts the test. It should start sounding its beeper. Then you check other modules LED patterns. Some will not show anything as it can't directly see the test from the PLM. I use the tests on my now not totally needed 2443 Access Points and the 2922-222 Range Extender. As I am old school almost all single band power line only Not extremely important. As long as one of the modules can successfully communicate the PLM to the tested module. Many of the papers and developer documents originally in an NDA; are now found here. https://github.com/pyinsteon/pyinsteon/commit/2533494a8b13b30b2d0938c9a18afe782b740410 There maybe different revisions there.

The Event Viewer at level 3 may also give you a clue. Like if the if the PLM had to retry a command. If the module did not ACK the message. Older power line only modules also have to get the message. Like something is making noise, signal sucking or the PLM is on one phase of the home and the module is on the other phase and coupling is poor. Dual band also uses RF so it is not as big problem these days. I also remember some modules may wait for a message or noise on the power line as it tried to be polite.

The reconditioned ones may also depend on the original revision. I am sure they change the power supply parts and the serial board controller. But I seriously doubt they can update the firmware version. 2E is the last one I have seen on V2.1 and above. As of V2.4 new designed serial board with built in surge suppression on the two serial signals to the outside world. Possible they added suppression on the older serial board as part of the updates.

ACT has been gone for awhile now. The AF120 filter was nice. JVDigitals XTB-F15 was also nice. Both are gone now.