Clients picking up wrong Vlan

By CCSDTech ·
I am having an issue with my clients receiving Voice Vlan IP addresses. I have set up vlan 10 for data and 20 for voice. For some reason recently just one of my buildings the clients started picking up the voice vlan IP addresses instead of data. Some clients are plugged into the phones while some are not plugged into the phones. I am using the following interface configuration on the ports having the issue.

description Data and Phone Support
switchport access vlan 10
switchport mode access
switchport voice vlan 20
srr-queue bandwidth share 1 30 35 5
priority-queue out
mls qos trust device cisco-phone
mls qos trust cos
spanning-tree portfast

Now my switches in my other two buildings have the same configurations on the ports and are not having this issue.

Any ideas on how I could go about figuring out why this is happening?

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