Automatic change of IP adress on BM

Hi all,

I have this strange problem with my logo system, which already happened twice. On a 24VDC power failure (the module is a 0BA8 12/24) and when power is restored, the base module changes its IP address from the set one to 192.168.1.111.

Since this is a pure (no screen module), we lose all comunication with the TDE installed in the front panel, as well as with the CMR2020 modem. So, no alarm info (apart from general alarm warning ligh) and no remote warnings also.

Any ideas?

Thanks

thank you