Did you have the phone connected to another switch in another area to do the initial phone configuration and registration or did you just take the phone to the area where you have the problem?

I have a 8841 that is stuck on detecting network. IPv4 settings have been manually configured and I can ping the IP phone but the phone does not move past the detecting network message.

I am not seeing these phones request IP's at this point i think these respective phones need to be reset. for the 88/78 series phone press the cog wheel, navigate to admin settings and reset all. for the 7942, disconnect the power/poe cable, press and hold the # key, reinsert the power then enter 0123456789*# when speak light and button light flash once. that should reset it.

If a phone cannot obtain an IP address when it starts up, the phone may not be on the same network or VLAN as the DHCP server, or the switch port to which the phone connects may be disabled.

So, I'm trying to configure this phone so that I can connect it to my asterisk server as a sip client. Does anyone know of a comprehensive step by step guide to demystifying this and getting this configured so that I can run it with Asterisk?

After a reboot, a Cisco phone is stuck on "Initialing Network" or "Checking DNS". An office Cisco phone was moved from one office to another. The cables are taken out and swapped around. Each time it's just stucking saying "Initialing Network" or "Checking DNS".

If the network is down between the phone and the TFTP server or Cisco Unified CallManager, the phone cannot start up properly. Ensure that the network is currently running.

Step-by-step instructions to fix connection and call issues with your Cisco 8841

1) Please try a different network cable, if you have one available. 2) If that has no effect, then try connecting the other end of the cable to a different data socket.

Press and hold # while plugging the phone back in. Hold # until the handset icon and speaker button icon light up. The mute button will remain unlit. The Cisco screen will appear and the phone will be factory reset once network is detected.