We run Exchange 2010, and internally everything works great. Externally, everything still works quite well but people have started to mention that some features externally are taking a lot longer than when working internally. The common things popping up are adding attachments, searching mailbox, moving between folders in inbox etc. I cant say i have noticed any issues when using my phone but i can replicate it from a laptop outside of school. If i connect via the VPN, the lag is then lost??

We run TMG for publishing OWA and 100MB/100MB circuit. Anybody come across something similar?