We bought a new PowerConnect 2824 with a corresponding SFP module to replace an older 2724 and SFP module.
After configuring the switch and installing it, we were unable to get a connection on our fiber uplink.
The SFP light lights up and blinks occasionally, and the switch properly detects that SFP module is inserted and the fiber is plugged in. We can see the SFP insertion being detected and the switch changing to fiber mode by watching the console output, and the web administration port status page lists the port as "ComboF" when the SFP module is inserted and the fiber is connected.
However, the switch always reports that the port status is down. (The port is not administratively disabled.)
The old switch works fine with the old SFP module. The new switch does not work with either the old or the new SFP module. We've tried both SFP combo ports. We have also verified that the fiber itself is fine. We cannot get the new switch to show the combo port status as up when using the SFP module. We've tried completely resetting the new switch by deleting the config file via the boot menu over the serial connection and running the initial setup wizard again, but the port will still not come up.
Any ideas?