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Has anyone else experienced issues with the ethernet dongle not reconnecting with the inverter after a config change or device change such as the firmware update? I just installed FAAB-2122 and while the device still talks on RS485 just fine, the ethernet dongle and export to the fixed IP on the ethernet dongle isn't working. It's left with just the 2nd LED on vs all 4.
I don't want to have to physically reconnect the ethernet dongle each time, and the wiz-7500 that it's based on also has a lot fewer features than the wifi dongle, but also seems to just not work correctly, hence me using the rs485 for reliable data in/out of the inverters.
I have several inverters 12kpv and 18kpv and they all exhibit the same behavior. Any chance we can also get the release notes for this firmware as well?
Posted : July 1, 2025 3:08 pm
Topic starter
Or I'm not quite sure, it seems to do the FAAB-21xx update then does the FAAB-xx22 and seems to settle on EAAB-2122 which also feels unusual based on what I saw previously. Hopefully someone can help make sense of this and why these types of changes always leave just the LAN light on the dongle but disconnect it from the rest of the device and it never recovers without physical interaction.
Posted : July 1, 2025 3:47 pm
Topic starter
http://os.solarcloudsystem.com/#/releaseLog?deviceType=LXP_LB_8_12K
EG4_FAAB-2122
2025-06-22
- Based on FAAB-2021
- 1.Add Weekly Setting function.
- 2.Add the function of Sporadic AC charge power function, it will cause the AC charge power to fluctuate randomly between the set AC charging power and 2% rated power.
- 3.Optimize the response speed and stability in zero export mode in meter mode.
- 4.Optimize the restart logic that modify the CT/meter, battery type and brand will not be restarted.
- 5.Improve the issue of reading the RGM settings.
- 6.Improve the issue of power display on Micro-Grid mode.
- 7.Improve the issue of not stopping at the Stop Discharge Volt of forced discharge.
- 8.Improve the issue where the LCD display on the load power side lacked Smart Load power when the Micro Grid plus Smart Load mode were enabled.
- 9.Improve the issue of increased charge power when setting the Charge Last mode.
- 10.Improve the issue of abnormal load display in web page flow chart during parallel mode.
- 11.Improve the issue of getting phase lost warning when switching from on-grid and off-grid in three phase parallel mode.
Posted : July 1, 2025 4:00 pm
Can you share a picture of the dongle?
Just to make sure, you are saying every time you update the firmware, this happens.
Here is the changelog for the new firmware.
↓↓
Posted : July 1, 2025 6:00 pm
Topic starter
Can you share a picture of the dongle?
It's the standard ethernet dongle I purchased from signature solar.
I can DM you a list of the ethernet dongle serial numbers or inverter serial numbers, but when updating them today 4/5 i had to manually reset the dongle. It just had the LAN LED on each time.
You can also reproduce this if you change the battery setting from 0 <-> 1
Are the new register values for the daily/weekly setting published somewhere as well?
You may also want to pick up the fixes that I sent as a PR to the WIZ-7500 repo:
https://github.com/Wiznet/W7500x_StdPeriph_Lib/pull/16
Posted : July 2, 2025 1:34 am
@jaredmauch Hi Jared,
Yes - i have a parallel set of 18KPVs, each a different hardware version. Using two RJ45 dongles for EG4 support and the site-meaningful comms are two 485 links. Both dongles went offline and required power cycles to restore.
Comms and dongles have been stable for months. I ran both updates simultaneously. Software reboots of the inverters were tried first - dongles unaffected.
All is well after the inverter reboots and dongle power-cycles.
This post was modified 1 month ago by dlwittsr
Posted : July 11, 2025 10:07 pm
