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Community Member

Phone resets when computer sleeps

We are seeing a problem with various model Cisco phones resetting when the computer attached goes to sleep and wakes. We are running ISE with EAP for the computers. We see the same problem when the phone is using MAB or 802.1x. Has anyone else seen a similar issue? The only thing that we can see is a reported carrier lost in the radius transaction for the phone when the computer sleeps/wakes.
Hall of Fame Super Gold

What switch model?  If you've

What switch model?  If you've got a supervisor engine, please specify.

What IOS are you running? 

Post your interface configuration. 

Community Member

Switches are 3850's. Phone

Switches are 3850's. Phone models we have seen the problem with are the 9971's (load 9-4-1-9) and 6941's ( Port configuration is consistent across all switches (3.3.1SE). Each access closet has it's own specific voice and data vlan.

interface GigabitEthernet1/0/41
 switchport access vlan 2134
 switchport mode access
 switchport voice vlan 2234
 no logging event link-status
 no logging event power-inline-status
 authentication event fail action next-method
 authentication host-mode multi-auth
 authentication open
 authentication order dot1x mab
 authentication priority dot1x mab
 authentication port-control auto
 authentication periodic
 authentication timer reauthenticate server
 authentication timer inactivity server
 authentication violation restrict
 no snmp trap link-status
 dot1x pae authenticator
 dot1x timeout tx-period 10
 dot1x max-req 1
 storm-control broadcast level bps 150k
 storm-control multicast level bps 150k
 storm-control action trap
 spanning-tree portfast
 spanning-tree bpduguard enable
 service-policy input qos-access-in
 service-policy output qos-access-out


Community Member

On the NIC (Change adapter

On the NIC (Change adapter settings);

Properties >> Configure >> Power Management >> Remove the check from "Allow computer to turn off this device to save power" 



Had this issue before

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