So it gets even more puzzling. I've tried accessing my webspace via Filezilla - can't connect. My friend Andy, eight miles away in Rugeley and using a 5G router for his high-speed broadband CAN connect to my ftp account. I tried from my PC (Andy's request) to ping the server from a Command Prompt and it connected perfectly. We suspect it might be ee (my broadband service provider) -Andy said: Though it could possibly be caused by this... EE Content Lock: Occasionally, EE's "Content Lock" feature, designed for parental control, can unintentionally block access to FTP servers. I've logged in to my router settings, I've logged in to my ee broadband account and can confirm that there is no Content Lock set. Also, I can connect via ftp to accounts on IONIS with no issue. So all extremely puzzling. Andy is coming over on Wednesday to have a look.