@bradyv - That's what I'm planning to do. Replace my ER-4 with one of the Fortigate products. I know it works just fine.
Suuuuuper disapointed with Ubiquiti "support"
I sent them an support email and they sent me this:
"Vivian N. (Ubiquiti Networks Help Center)
Feb 9, 08:56 PST
Thanks for getting in touch with us!
It's a known issue with the Windows clients. Please check out the following link:
If you have any other questions, please let us know!