SmartSDR 3.0.19 - No-Go over VPN

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  • Problem
  • Updated 4 weeks ago
I have been running SmartSDR 3.0.19 locally at both home and my remote station site for weeks without incident. Today, I decided to do some remote SSB from home to the remote station...

The 3.0.19 SmartSDR client with Multi-flex absolutely craters my VPN connection (similar to how DAX does). My VPN connection has just 540Kb of (DSL) upload bandwidth available. Something in 3.0.19 is abusing upload bandwidth, making this version unusable over the VPN.

As a result, I have dropped back to 2.4.9, which works perfectly across the VPN and has for years.

I suspect it may have something to do with Multi-flex, but unable to determine for sure what's chewing up so much bandwidth.
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Rick - W5FCX

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Posted 1 month ago

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Michael Walker, Technologist

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Official Response
I talked to Engineering

The audio is set to compressed only when using SmartLink.  It is uncompressed when operating on a LAN (which VPN simulates).  This is a change between v2 and v3.

Mike
(Edited)