maestro poor wired network connection

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  • Updated 7 months ago
  • (Edited)
I just upgraded to 2.1.30.  The Maestro and the 6700 are both connected to a TP-Link gigabit switch. Network diagnostics show mostly poor (occasionally fair), 1 ms latency, 82 ms max latency, about 1.5% dropped packets. A PC connected to the same switch shows Excelent status, 1 ms latency, 2 ms latency and no dropped packets.
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Mark Erbaugh

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Posted 8 months ago

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Bob Wright, N7ZO

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Hi Mark,

I experienced the same problem when I upgraded my PC and Maestro Monday.  Similar network topology and similar diagnostic numbers.  The PC was immediately fine.  And surprisingly, the network problems with the Maestro went away in about 30-60 minutes and it has been an excellent connection ever since.  Don't know why.  I think Tim mentioned the Maestro has a new network stack in this version.  Maybe it fine tunes itself, but I'm just guessing.  For whatever reason, it is now working very well now with zero dropped packets after many hours.

73, Bob, N7ZO
(Edited)
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Bob Wright, N7ZO

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I take back what I said about the wired Ethernet connection improving.  The problem quickly recurred and it loses about 0.10% of the packets and is usually showing "fair" status.  I am getting glitches in the waterfall and in the audio.  This same connection was always excellent using 1.10.16 software.  Many reboots have occurred.  I have submitted a help desk ticket.  (My radio to PC connection running through the same Netgear GS108T switch is always excellent, even with 2.1.32.)

Update:  I set the switch to 100Mbps/full duplex for the Maestro port.  If anything. the lost packet percentage is worse, now running close to 0.20% with worse glitching.

Update #2:  I disconnected the wired Ethernet and switched to Wi-Fi.  Both the 2.4 and 5 GHz connections are much better showing "Excellent" for the status, although the 5 GHz is best for dropped packets, but this might be local conditions.

I am becoming convinced this is flaw in the Maestro's wired Ethernet stack.
(Edited)
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Tim - W4TME, Customer Experience Manager

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Bob's issue was handled via the HelpDesk.  After performing diagnostics, the problem ended up being a network issue that was solved by rebooting the switch/router.
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Bob Wright, N7ZO

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Tim beat me to posting my outcome.  The problem was not in the Maestro.  Somehow my Netgear GS108T switch (the only device between Maestro and the radio) was not handling the new MAC address / IP address combination caused by upgrading my 6700 to the latest firmware.  My 6700 had been in static address mode (which has worked fine for several years) so the MAC address changed but the IP address remained the same.  Tim had me do a direct Maestro to Radio connection and the connection was excellent with no dropped packets.  When I put Maestro and the 6700 back on my home network I changed the 6700 to DHCP and with the new IP address, most of the problems cleared up.  Finally I did a full reset (paper clip into the reset hole) on the Netgear switch and now I have a solid connection, zero packets dropped out of over 12 million as of this morning.  Thanks Tim.

To Mark, the OP, have your tried a full reset of your TP-Link switch?  I have tended to treat network switches as commodity items that always work, but apparently they can become confused.

Happy Bob, N7ZO
(Edited)
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Tim - W4TME, Customer Experience Manager

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Reboot the Maestro.  There is a possible race condition when the Maestro is negotiating port speed and duplex state and a mismatch can occur.  Usually immediately rebooting the Maestro will negotiate the line settings properly. 

This seems to happen only when connected to certain gigabit switches.  If you can manually set the port setting to 100/full duplex, then the mismatch usually does not occur.
(Edited)
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Bob Wright, N7ZO

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Hi Tim,
In my case I do not think I rebooted the Maestro or the 6700.  Can they re-negotiate on the fly?  My switch is a Netgear GS108T.
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Tim - W4TME, Customer Experience Manager

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Only via a reboot.
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Timo - OH5KW

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Mark,
In my case reducing Maestro LAN speed from 1G to 100M did the trick. Haven't tested this with the v2.1 yet.
73, Timo OH5KW
(Edited)