Marstek App not connecting to B2500 v116

[nicoh03]

Hi,

i have updated to v 116 on my HMJ-2 B 2500. A few weeks ago. Now Hame Relay is not working right i assume, because the marstek App is not showing live data like solar power or battery soc.

Homeassistant is receiving the data via mqtt correctly.
Could be just a setup issue, but i already tried reinstalling the hame relay addon.

Logs from hame relay:

Configured devices: 1 total
[2026-01-20 11:39:31] INFO: ------------------
[2026-01-20 11:39:31] INFO: Device 1:
[2026-01-20 11:39:31] INFO: Name: HM_B2500
[2026-01-20 11:39:31] INFO: Device ID: 36011...
[2026-01-20 11:39:31] INFO: Remote ID: 9Vjc...
[2026-01-20 11:39:31] INFO: MAC: 009c...
[2026-01-20 11:39:31] INFO: Type: HMJ-2
[2026-01-20 11:39:31] INFO: Version: 116
[2026-01-20 11:39:31] INFO: Broker: hame-2025
[2026-01-20 11:39:31] INFO: Inverse Forwarding: false
[2026-01-20 11:39:31] INFO: Use Remote Topic ID: false
[2026-01-20 11:39:31] INFO: ------------------

Thanks,
Nico

[nicoh03]

This is how it looks in the app:

[tomquist]

Now Hame Relay is not working

Can you please be a bit more precise on what is not working?

Also, try restarting the device and please provide logs of Hame Relay with DEBUG log level (can be changed via settings) and while you're using the app.

[nicoh03]

Now Hame Relay is not working

Can you please be a bit more precise on what is not working?

Also, try restarting the device and please provide logs of Hame Relay with DEBUG log level (can be changed via settings) and while you're using the app.

Of course. I restarted the device.
So the marstek app is not connecting to the battery and giving real time updates. Usually in the App, at the top next to the name it shows a green wifi symbol when connected. (second screenshot).
Also the battery soc on the second screenshot is not loading since it shows 0 %.

For logs, i activated Debug logs. I removed some of the Ids from the logs, but it should not matter.
This is without opening the Marstek App:

[2026-01-20 12:36:27] INFO: 
Configured devices: 1 total
[2026-01-20 12:36:27] INFO: ------------------
[2026-01-20 12:36:27] INFO: Device 1:
[2026-01-20 12:36:27] INFO:   Name: HM_B2500_Hoffmann
[2026-01-20 12:36:27] INFO:   Device ID: 36011...
[2026-01-20 12:36:27] INFO:   Remote ID: 9Vjc...
[2026-01-20 12:36:27] INFO:   MAC: MAC: 009c...
[2026-01-20 12:36:27] INFO:   Type: HMJ-2
[2026-01-20 12:36:27] INFO:   Version: 116
[2026-01-20 12:36:27] INFO:   Broker: hame-2025
[2026-01-20 12:36:27] INFO:   Inverse Forwarding: false
[2026-01-20 12:36:27] INFO:   Use Remote Topic ID: false
[2026-01-20 12:36:27] INFO: ------------------
[2026-01-20 12:36:27] INFO: 
[2026-01-20 12:36:27] DEBUG: Setting up forwarder for broker hame-2025
[2026-01-20 12:36:27] DEBUG: [hame-2025] Subscribing to local broker topics:
hame_energy/HMJ-2/device/009c.../ctrl
[2026-01-20 12:36:27] DEBUG: [hame-2025] Subscribing to remote broker topics:
marstek_energy/HMJ-2/App/9Vjc.../ctrl
[2026-01-20 12:36:27] INFO: Health server listening on port 8080
[2026-01-20 12:36:28] INFO: [hame-2025] Connected to remote broker
[2026-01-20 12:36:28] INFO: [hame-2025] Subscribed to remote broker topics
[2026-01-20 12:36:28] INFO: [hame-2025] Connected to config broker
[2026-01-20 12:36:28] INFO: [hame-2025] Subscribed to local broker topics
[2026-01-20 12:36:38] DEBUG: [hame-2025] Matched device: 36011150...
[2026-01-20 12:36:38] DEBUG: [hame-2025] Inverse forwarding: false
[2026-01-20 12:36:38] DEBUG: [hame-2025] Skipping device message forwarding to remote for HMJ-2:3601XXX:009cXXX: no recent App message was forwarded
[2026-01-20 12:37:08] DEBUG: [hame-2025] Matched device: 36011150...
[2026-01-20 12:37:08] DEBUG: [hame-2025] Inverse forwarding: false
[2026-01-20 12:37:08] DEBUG: [hame-2025] Skipping device message forwarding to remote for HMJ-2:3601XXX:009cXXX: no recent App message was forwarded
[2026-01-20 12:37:09] DEBUG: [hame-2025] Matched device: 36011150...
[2026-01-20 12:37:09] DEBUG: [hame-2025] Inverse forwarding: false
[2026-01-20 12:37:09] DEBUG: [hame-2025] Skipping device message forwarding to remote for HMJ-2:3601XXX:009cXXX: no recent App message was forwarded
[2026-01-20 12:37:09] DEBUG: [hame-2025] Matched device: 36011150...
[2026-01-20 12:37:09] DEBUG: [hame-2025] Inverse forwarding: false
[2026-01-20 12:37:09] DEBUG: [hame-2025] Skipping device message forwarding to remote for HMJ-2:3601XXX:009cXXX: no recent App message was forwarded
[2026-01-20 12:37:09] DEBUG: [hame-2025] Matched device: 36011150...
[2026-01-20 12:37:09] DEBUG: [hame-2025] Inverse forwarding: false
[2026-01-20 12:37:09] DEBUG: [hame-2025] Skipping device message forwarding to remote for HMJ-2:3601XXX:009cXXX: no recent App message was forwarded

After refreshing in the Marstek App i couldnt see a difference in the logs:

[2026-01-20 12:37:39] DEBUG: [hame-2025] Matched device: 36011150...
[2026-01-20 12:37:39] DEBUG: [hame-2025] Inverse forwarding: false
[2026-01-20 12:37:39] DEBUG: [hame-2025] Skipping device message forwarding to remote for HMJ-2:3601XXX:009cXXX: no recent App message was forwarded
[2026-01-20 12:38:09] DEBUG: [hame-2025] Matched device: 36011150...
[2026-01-20 12:38:09] DEBUG: [hame-2025] Inverse forwarding: false
[2026-01-20 12:38:09] DEBUG: [hame-2025] Skipping device message forwarding to remote for HMJ-2:3601XXX:009cXXX: no recent App message was forwarded
[2026-01-20 12:38:39] DEBUG: [hame-2025] Matched device: 36011150...
[2026-01-20 12:38:39] DEBUG: [hame-2025] Inverse forwarding: false
[2026-01-20 12:38:39] DEBUG: [hame-2025] Skipping device message forwarding to remote for HMJ-2:3601XXX:009cXXX: no recent App message was forwarded
[2026-01-20 12:39:09] DEBUG: [hame-2025] Matched device: 36011150...
[2026-01-20 12:39:09] DEBUG: [hame-2025] Inverse forwarding: false
[2026-01-20 12:39:09] DEBUG: [hame-2025] Skipping device message forwarding to remote for HMJ-2:3601XXX:009cXXX: no recent App message was forwarded
[2026-01-20 12:39:09] DEBUG: [hame-2025] Matched device: 36011150...
[2026-01-20 12:39:09] DEBUG: [hame-2025] Inverse forwarding: false
[2026-01-20 12:39:09] DEBUG: [hame-2025] Skipping device message forwarding to remote for HMJ-2:3601XXX:009cXXX: no recent App message was forwarded
[2026-01-20 12:39:09] DEBUG: [hame-2025] Matched device: 36011150...
[2026-01-20 12:39:09] DEBUG: [hame-2025] Inverse forwarding: false
[2026-01-20 12:39:09] DEBUG: [hame-2025] Skipping device message forwarding to remote for HMJ-2:3601XXX:009cXXX: no recent App message was forwarded
[2026-01-20 12:39:09] DEBUG: [hame-2025] Matched device: 36011150...
[2026-01-20 12:39:09] DEBUG: [hame-2025] Inverse forwarding: false
[2026-01-20 12:39:09] DEBUG: [hame-2025] Skipping device message forwarding to remote for HMJ-2:3601XXX:009cXXX: no recent App message was forwarded
[2026-01-20 12:39:39] DEBUG: [hame-2025] Matched device: 36011150...
[2026-01-20 12:39:39] DEBUG: [hame-2025] Inverse forwarding: false
[2026-01-20 12:39:39] DEBUG: [hame-2025] Skipping device message forwarding to remote for HMJ-2:3601XXX:009cXXX: no recent App message was forwarded
[2026-01-20 12:40:09] DEBUG: [hame-2025] Matched device: 36011150...
[2026-01-20 12:40:09] DEBUG: [hame-2025] Inverse forwarding: false
...

[tester277]

Perhaps it's a good idea to first increase the charge and then see what the communication does.
The actual soc of B2500 is between 0% and 1% (on the screenshots).

[nicoh03]

Perhaps it's a good idea to first increase the charge and then see what the communication does. The actual soc of B2500 is between 0% and 1% (on the screenshots).

we don't have that much sun power at this time of the year, but from what i can see the soc doesnt make a difference. Now I am at 15% and i see the same behavior.

The B2500 has firmware 116.6 according to mqtt

[artexsl]

Hello,

I also converted my B2500 to mqtt using Tomquist's tool. Home Assistant works perfectly. However, the Marstek app then only connects to the storage via Bluetooth and no longer via Wi-Fi. But that should be normal and not a fault.
Was it possible for you to read the battery storage while on the move despite switching to mqtt?

[nicoh03]

Hello,

I also converted my B2500 to mqtt using Tomquist's tool. Home Assistant works perfectly. However, the Marstek app then only connects to the storage via Bluetooth and no longer via Wi-Fi. But that should be normal and not a fault.
Was it possible for you to read the battery storage while on the move despite switching to mqtt?

So in the App I can see the soc on the devices overview Page, however after clicking on the battery system it won't live update and show stats like watt in and out.
This only works via Bluetooth.
And in earlier versions I could also do this via WiFi (using Hame Relay)

[nicoh03]

it did start working again a few weeks later, so i'm gonna close the issue. Thx everyone