[Skimmertalk] Multiple Red Pitaya on network: -- now will not work

[Bob Wilson, N6TV]

Sounds like Ethernet overload, or they're being connected to your Ethernet
switch 100 Mbps instead of 1 Gbps.  Check the status lights.  Perhaps
lightning damaged the switch?

Try running just one RP, all the others powered down.  Start with CWSL_Tee
and CW Skimmer (no RTTY Skimmer), just a few bands at 48 kHz skimming.  If
that works, check the network traffic load using Windows Task Manager.
Then gradually increase the number of skimmers and bandwidths.

If you can't even get one CW Skimmer running with two bands on 48 kHz, it
must be something else.

Note that the write-up explains how to start the skimmers running the RPs
automatically, with no need to use a browser to start them.

http://hamsci.org/n6tv-red-pitaya-combine-cw-rtty-skimmer-hdsdr

Look for rc.local.

73,
Bob, N6TV

On Sat, Sep 8, 2018 at 2:13 PM, Wes Cosand <wes.cosand at gmail.com> wrote:

> Before taking a couple of months off, I had three Red Pitaya units, each on
> a dedicated PC, running Skim Server, RTTY Skimmer, and WSJT.  All the
> radios were off during my absence, disconnected from the antennas and
> power.
> The router remained running and after returning from vacation the dynamic
> IP addresses had changed.
>
> Now things have failed.  I would start Skimmer Server (which includes the
> MAC address in the ini file) and I would get an error message – something
> about too many receivers.  I can ping the units.  Initially I could  access
> the units with  a browser, keep it open and start skim server and this ran
> successfully on all three machines overnight the next morning the units
> failed.  Now the behavior is different.  If I reboot the computer and the
> RP and then start skim server I get the message “Can’t locate HPSDR
> device”.  If I access the unit with a browser and then start skim server I
> get “SDR failure – Timed out waiting for UDP data”.
>
> What is weird is that often it is clear the receiver and Skim Server is
> working for several seconds, reporting appropriate numbers of decoders,
> then the Skim Server dialogue box will get a red check and throw the “timed
> out” error message for a few seconds, and then return to receiving.
>
> All three units demonstrate similar behavior.  I don’t think I could have
> messed up configuration files on three machines simultaneously.  All three
> of the RP are on an Ethernet switch along with two of the three PCs.  The
> computers are a mixture of Windows 7 and 10.
>
> I may be too senile to successfully run this hardware and am just doing
> something totally stupid.  Pretty frustrated at the moment.
>
>
> Wes, WZ7I
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