having issues with users connecting via Microsoft VPN client from Shanghai China to our server here in the US, but only some users in that office. there is severe latency while connected, but they can connect to the vpn. they did not have this issue until a week ago. looking at setting up point to point vpn using Sonicwall TZ190 in our main office stateside and a TZ180 or whatever will work in China. I would assume the vpn would be more stable (ok hoping is more accurate).
setup: server 2003 R2 with Sonicwall TZ190 in main office in the US, users in China are on laptops (not on any domain/workgroup) and basic MS vpn setup. users in the US are not having any issues with VPN.
any advice would be appreciated, not sure what to look at with such a long distance and having them be 13 hours ahead time-wise.