BOVPN to Azure - Fast and Slow
We have an M390 running version 12.92.
We have setup an BOVPN to Azure over a Comcast fiber connection. Everything is working well except the upload speeds are extremely slow vs the download speeds but only across the BOVPN. If I upload a large file to an external location the speeds are fast both ways.
I have the MTU set to 1400 per the Azure requirements.
Support is telling me this is because of inherent SMB issues. But if I am using a single 600meg file to test and it's pulling it down through the BOVPN in 20 seconds but takes 2.5 minutes to send the same file back to the exact same server, this can't be a SMB problem can it?
The same fast vs slow also occurs if I test using hundreds of smaller files. Download is fast and upload is slow.
Any help is appreciated.