Aironet 1100 Ping issues poor connectivity LAN

I have setup an Aironet 1100 on our old office, and we never had any connectivity issues.
A month ago we moved to a new location, some new equipment and i moved the Aironet to the new office.
The problem i am experiencing right now is packets drops. The AP is connected straight to out Poe switch. If i telnet into the switch and do an extended ping command, i can see a lot of packets dropping. I've check the interface duplex - speed and everything looks just fine. I have not change any settings on the AP since i moved it to the new location.
What else can i troubleshoot?
Thanks
Zeek

1) Did you try rebooting the AP?
2) Which switch model is it?
3) How is the switch port connecting the AP configured, trunk or access? If trunk how many VLANs are allowed?
4) Check the CPU/Memory on the AP, how much is it?
5) How many clients are connected at once?
Regards
Farrukh

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