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elmagnificomi
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Joined: Fri Apr 22, 2022 6:16 am

Fixed UDP packet loss Need Help

Fri Apr 22, 2022 6:18 am

We use Mikrotik Product :NetMetal 5 triple and NetBox 5

We find a udp drop occured when use the two products

The udp package is :
0xfe 0x12 0xf5 0x01 0x01 0x77 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x78 0x51 0x02 0x00 0x00 0x00 0xec 0xbf

It could be received at the first serval times ,then it cant work any more. I watched the drop num in winbox64, the enter1,wlan1,bridge all drop 0 and error 0 .

When i change the device to a home router , no drop, always could be received.

When we add a byte before the drop package or add a byte at the tail like:

head:
0x00 0xfe 0x12 0xf5 0x01 0x01 0x77 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x78 0x51 0x02 0x00 0x00 0x00 0xec 0xbf

tail:
0xfe 0x12 0xf5 0x01 0x01 0x77 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x78 0x51 0x02 0x00 0x00 0x00 0xec 0xbf 0x00


The package never drop again.

So is there any hint about why the two devices would drop the specific udp pkg?

All test env are same,and the network is private,only has one device connect by wifi and the package is send by pc through enthernet.the wifi is 5G-A/N/AC and at 5805MHz, Channel width is 20MHz.Mode is ap bridge.

If you need more details , i could offer.

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