Wednesday, January 6, 2021

LAN Issue doing my nut in!

Hi All,

Odd one here:

Router = Draytek 2860 Port 1 no VLANs connected to HP 1920 Switch.

Switch 1 connected via fibre with 5 VLANs to Switch 2 another 1920. VLAN 1 Untagged, VLAN 3-5 Tagged tagging matches both ends.

WIFI Point to Point link connected to Switch 2 on VLAN ID 1 Untagged.

Remote End Point to Point AP connected to Switch 3 VLAN ID 1 Untagged.

Subnet Range is 192.168.2.0 with the router being 192.168.2.1 VLAN ID 1 untagged.

From the remote end beyond the WIFI link clients can ping 192.168.2.1 and the web management page is accessible.

From the remote end you cannot reliably ping any other hosts on the far side of the WIFI link other than the router. Lots of lost packets.

At the remote end you can ping all hosts on the local Switch 3 network.

From the local side you cannot reliably ping hosts on the remote end of the link again with lots of lost packets but you can ping hosts on the local network.

The odd part is the Draytek does seem able to reliably ping hosts on both parts of the network.

Currently tearing my hair out, any suggestions?



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