I am doing wireless project. the WLC 4402 DS port (SFP) used with GLC-T module not working when connected to the switch. If i connect the DS port to the PC then the link LED comes up but i can not ping management IP address. Due to this problem i now using all the APs in autonomous mode not in lightweight.
Please any one help me what cound be the issue.
I already replaced the SFP module, L2 switch and cable.
Device details as below