Thanks for the advise,
I tried to install My Swiss Assisstant, however I did not manage to complete the process 😞 probably because I do not have Admin privileges in my laptop as it is a business one.
Coming back to the issue I am still facing, in one of my laptops (it seems I can only have one at teh same time:-/) when I cannot connect to internet through Wifi I always get the same error message: "Wireless Network Connection doesn´t have a valid IP config" It is also true when my iPads or iPhone cannot connect I do not see any IP address even after renewing the concesion.
Thanks again for your kindly support,
Ruben