Packets Ignored https://aprsisce.wikidot.com/forum/t-1550786/packets-ignored Posts in the discussion thread "Packets Ignored" - APRSIS32 does not see some packets I am sending to it Sat, 10 Oct 2026 19:51:37 +0000 http://aprsisce.wikidot.com/forum/t-1550786#post-2438534 Packets Ignored https://aprsisce.wikidot.com/forum/t-1550786/packets-ignored#post-2438534 Tue, 12 Jan 2016 23:49:42 +0000 Brian - KG7AFQ 2429887 I am developing an APRS IS Messaging server. When I test using APRSIS32 things go well, mostly.

I am using Windump to trace packets from my Win7 machine to/from an APRS Tier 2 server.

The first two packets below go well. APRSIS32 sends a message. It then receives and ACK. All is well.

The third packet below is the problem. It is sent by the server to the APRSIS32 client but the client seems to ignore it.
I must be creating an ill formed packet at the server. Can anyone see the what may be wrong with the third packet here and why APRSIS32 would be ignoring it.?

Packet 1 - 10.0.222.99.51904 > 44.10.10.2.14580
KG7AFQ-9>APWW10,WIDE1-1,WIDE2-1::PROVMAR..:r1,ly31,0224{EV}

Packet 2 - 44.10.10.2.14580 > 10.0.222.99.51904
PROVMAR>APZ009,TCPIP*,qAS,KG7AFQ::KG7AFQ-9.:ackEV}

Packet 3 - 44.10.10.2.14580 > 10.0.222.99.51904
PROVMAR>APZ009,TCPIP*,qAS,KG7AFQ::KG7AFQ-9:r1,ly31,0224,1452107238,1452107238,All.is.well{92135

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