Tuesday, 24 July 2018

Windows 10 Internet Active Probing

After some research it appears a similar issue to this occurred with Windows 8. I never had this issue during my roll out of Windows 8 but the resolution appears to work for Windows 10 1607 as well. At this stage I don’t know if making this change causes any unforeseen problems, but I’ll add to this post if I see anything.
Here’s how to prevent it. Using the registry editor, navigate to the location below, and change the “1” (enabled) to a “0” (disabled).
1
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NlaSvc\Parameters\Internet\EnableActiveProbing

Wednesday, 13 June 2018

Cisco 8832 phone not connecting, no IP, no CDP, no MAC

There is an issue with specific firmware for Cisco 8832 phones.
The phone comes with 12.0.xxxSR3 or something like that, and it connects to switch but it doesn't appear in CDP neighbors. 
If you use the 12.0.xxxx (No SR version) in CUCM, then the phone can't connect and doesn't appear anywhere in the switch (even in MAC address table), at this state shows can't get any IP etc.

You have to use 12.1xxx firmware for this phone to operate properly.

To recover from the situation and upgrade to 12.1 you have to do the following

  1. Unplug the phone
  2. Wait for 10 seconds
  3. Hold the * (asterisk) key while plugging the phone back
  4. When the LED light turns off release the * and type 123456789*0#
The phone should boot with 12.0.xxxxSR version and it would get an IP so you can upgrade it to 12.1 and from there it would operate normally.

Tuesday, 5 June 2018

Anyconnect NAM XML profile location

Windows 7:
C:\ProgramData\Cisco\Cisco AnyConnect Secure Mobility Client\Network Access Manager
Windows XP:
C:\Documents and Settings\All Users\Application Data\Cisco\Cisco AnyConnect Secure Mobility Client\Network Access Manager

Tuesday, 15 May 2018

Cisco IP Phones disconnect causes

Here is a List of the reason codes for LastOutOfServiceInformation

ReasonForOutOfService=10    --  TCPtimedOut - The TCP connection to the Cisco Unified Communication Manager experienced a timeout error
ReasonForOutOfService=12    --  TCPucmResetConnection - The Cisco Unified Communication Manager reset the TCP connection
ReasonForOutOfService=13    --  TCPucmAbortedConnection - The Cisco Unified Communication Manager aborted the TCP connection
ReasonForOutOfService=14    --  TCPucmClosedConnection - The Cisco Unified Communication Manager closed the TCP connection
ReasonForOutOfService=15    --  SCCPKeepAliveFailure - The device closed the connection due to a SCCP KeepAlive failure
ReasonForOutOfService=16    --  TCPdeviceLostIPAddress - The connection closed due to the IP address being lost.  This may be due to the DHCP Lease expiring or the detection of IP address duplication. 
                                                           Check that the DHCP Server is online and that no duplication has been reported by the DHCP Server
ReasonForOutOfService=17    --  TCPDeviceRegsistrationTimedOut - The device closed the TCP connection due to a registration timeout
ReasonForOutOfService=18    --  TCPclosedConnectHighPriorityUcm - The device closed the TCP connection in order to reconnect to a higher priority Cisco Unified CM
ReasonForOutOfService=20    --  TCPclosedUserInitiatedReset - The device closed the TCP connection due to a user initiated reset
ReasonForOutOfService=22   --  TCPclosedUcmInitiatedReset - The device closed the TCP connection due to a reset command from the Cisco Unified CM
ReasonForOutOfService=23    --  TCPclosedUcmInitiatedRestart - The device closed the TCP connection due to a restart command from the Cisco Unified CM
ReasonForOutOfService=24    --  TCPClosedRegistrationReject - The device closed the TCP connection due to receiving a registration rejection from the Cisco Unified CM
ReasonForOutOfService=25    --  RegistrationSuccessful - The device has initialized and is unaware of any previous connection to the Cisco Unified CM
ReasonForOutOfService=26   --  TCPclosedVlanChange - The device closed the TCP connection due to reconfiguration of IP on a new Voice VLAN
ReasonForOutOfService=27   --  TCPclosedPowerSavePlus - The device closed the TCP connection in order to enter Power Save Plus mode
ReasonForOutOfService=100    --  ConfigVersionMismatch - The device detected a version stamp mismatch during registration Cisco Unified CM
ReasonForOutOfService=104   --  TCPclosedApplyConfig - The device closed the TCP connection to restart triggered internally by the device to apply the configuration changes
ReasonForOutOfService=105    --  TCPclosedDeviceRestart - The device closed the TCP connection due to a restart triggered internally by the device because device failed to download the configuration or dial plan file
ReasonForOutOfService=106    --  TCPsecureConnectionFailed - The device failed to setup a secure TCP connection with Cisco Unified CM
ReasonForOutOfService=107    --  TCPclosedDeviceReset - The device closed the TCP connection to set the inactive partition as active partition, then reset, and come up from the new active partition
ReasonForOutOfService=108    --  VpnConnectionLost - The device could not register to Unified CM because VPN connectivity was lost
ReasonForOutOfService=200   --  ClientApplicationClosed - The device was unregistered because the client application was closed
ReasonForOutOfService=201   --  OsInStandbyMode - The device was unregistered because the OS was put in standby mode
ReasonForOutOfService=202   --  OsInHibernateMode - The device was unregistered because the OS was put in hibernate mode
ReasonForOutOfService=203   --  OsInShutdownMode - The device was unregistered because the OS was shut down
ReasonForOutOfService=204   --  ClientApplicationAbort - The device was unregistered because the client application crashed
ReasonForOutOfService=205   --  DeviceUnregNoCleanupTime - The device was unregistered in the previous session because the system did not allow sufficient time for cleanup
ReasonForOutOfService=206   --  DeviceUnregOnSwitchingToDeskphone - The device was unregistered because the client requested to switch from softphone to deskphone control
ReasonForOutOfService=207   --  DeviceUnregOnSwitchingToSoftphone - The device is being registered because the client requested to switch from deskphone control to softphone
ReasonForOutOfService=208   --  DeviceUnregOnNetworkChanged - The device is being unregistered because the client detected a change of network
ReasonForOutOfService=209   --  DeviceUnregExceededRegCount - The device is being unregistered because the device has exceeded the maximum number of concurrent registrations
ReasonForOutOfService=210   --  DeviceUnregExceededLoginCount - The device is being unregistered because the client has exceeded the maximum number of concurrent logons