Strange what you say about Vanguard. I have had accounts with them for over 40 years. I never had trouble logging onto them from Thailand until about 7-8 years ago. Thinking perhaps I had a computer or internet problem, I tried a friends computer with the same result. He suggested I try using a VPN with a U.S. IP address. It worked and I have used a VPN ever since with no problems. I have, in fact, used several different VPN apps with good results. I am currently using the free version of VeePN with an Oregon based IP address. It always works perfectly. That said, I think Vanguard's customer service, especially to relatively small investors, has declined in the last few years and I am thinking of taking my business elsewhere.