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DHCP Problem with 3Com SuperStack with Fiber - No UDP 67 broadcast on fiber

Posted on 2009-07-15
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Last Modified: 2012-05-07
Good day.

I have 2x 3COM superstack with fiber link connected between the stacks and I had to reset them to factory default.  Both models for fiber are 4228G and now the traffic cannot pass from one to another.  I understood there was 3 VLANs configured before from another tech but obviously, the links kept on going up and down randomly, therefore explaining why I have decided to reset to factory default.

What I really want to do is have the Switch act as 2x L2 Dumb switch with the least amount of software from 3COM.  My logic was to do a reset to factory default on both....However, now there is no communication going on between the stacks.  There is no ports that are tagged and I want everything to run on VLAN 1(default) because the DHCP is on the same subnet.  What must I do to have those 2 fiber link appear as on the same subnet.

Thank you in advance.
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JanSc earned 500 total points
ID: 24868858
Sounds odd, but shutdown the fibre interfaces. Wait a few seconds and then enable the interfaces.
Most times it works after factory reset.
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