www.dl2rum.de

No.
Just go to the App Store and download a keyboard that fits your needs.

Works well here, more information would be useful.
Please note: Only TRX#1 works in the contest module.

From Club Log:

For QSOs on 2026-06-24 12:31...
RI0SP maps to MARITIME MOBILE
Not valid for DXCC on this date

I just noticed that you also activated a DX-Lab Commander CAT in the RUMLog UDP tab. You should just use the Server under the TX#1 tab.

In the microKeyer status panel are a lot of bubbles, one is for PTT. Even on the MKII is a PTT LED. When the PTT LED is lit, software is okay and you have a hardware issue. Since I'm using a microKeyer by myself, I'm sure it must work. I've tested iDigi with MKIII and dx-lab suite commander ...

Tnx for the hint Hanz, I can confirm this issue.
Use try this version and report: https://dl2rum.de/RUMlogNG/RUMlogNG_Test.zip

Which kind of cw keyer?

I'm wondering how iDigi can establish a dx-lab-suite commander CAT connection to RUMlog. In iDigi you have set the control port to 7374 and in RUMlog to 2237.
Watch the Network Status Window. When iDigi connects to RL, you will get a message.

I would appreciate when you read the information from the link above and show us a screenshot of your MKII settings. I think you don't know that the MKII is not a simple interface. It is a complex device that requires proper configuration.

See here: https://dl2rum.de/RUMlogNG/docs/en/pages/microHAM.html