Knx lost connection after changing router

Hi, I recently changed my router and Homey can’t find the KNX IP Interface 731 anymore. I have the same IP class and KNX IP Interface 731 has the same ip. I tried rebooting homey and rebooting knx app. The router can see the KNX IP Interface 731 and the device is pingable.
But inside homey app I always have the warning “selected ip interface not found” and also trying re-adding a light I can’t find KNX IP Interface 731 also trying to ad manually.
anyone has some advices? I’d like to avoid resetting all to factory…


Have you solved the problem?
I have the same problem. After restart or firmware update Home loose contact with KNX. Requires a lot of work to get it work again.