SOPHOS XGS 2100 Zenmap intense portscan - Linksys WRT45G dropbear?

 Dennis Wauer  Thanks for the clarification on that part, For SSH scanning part or other services in the scan result if the given steps are not helping to narrow down the situation then I would suggest opening a support case to check it further.

Okay, I will do it. Thanks so much for your help really.

I can imagine, that someone manipulate the HW FW. Also I have here two APX 120, one only red light and another without any light - like dead...