Octagon SX 88 4K. Tivusat and Lan problem

Hello to all the friends of the Forum,

I apologize in advance in case I don't express myself correctly but I hope for your help to solve a problem that suddenly appeared with my friend's Receiver: Octagon SX 88 4K.

A few days ago in the information bar I noticed the Symblo SUB and the Lan cable in red. and from this moment on the TIVUSAT card, which usually did so regularly, no longer reacts. Question: what does this mean? can I solve it?

and how can I solve it?

I thank you for any help and advice you can give me, but please use words that are easy to understand since I am not an expert and I have to use the Google translator, what I have understood so far is that it depends on your Router because changing the Receiver the same problem occurs as soon as I insert the LAN cable, or the W-LAN stylus, the same thing.

Thanks again.

Grazie.

English, Does anyone have any advice for me?

then the LAN socket in the photo was never red, and the Receiver worked well with the Tivusat Card, but not anymore!

How can I fix this?

Thank you.