Telecable/Excom insecure
I am now about 12 years with Telecable. After installation of their fiber router I changed the router and the Wifi password, as usually recommended. Sometime ago I found they had changed the router access password via the line and incidently I found out that Telecable/Excom knows my Wifi password. That shows that they have modified the system to allow themselves backdoor access (they argue for support purposes) but they have no need to do this and it is very, very insecure. This is definitely a reason to change the ISP.