Cisco IP 7821 S/W 14.0(1) SR3 couldn't registration with CUCM 11.5

[HaiLua54]

Hi All.

We have 2 new IP Cisco phone 7821 (Firmware load must be 14.0(1) SR3 or later). But couldn't registration with Our CUCM server ver 11.5.

I have upgarde 7821 Firmware version 14.0(1)SR3 to CUCM Ok.

Pls help me advise me, how to solved this problem!!! thanks all

I have set Phone Load Name for new Phone:

but couldn't Register with CUCM

Some information can load to new phone and Display on Setting / "Phone information"

Active Server: Still none

Old Phone: can use as normal

New phone:

[b.winter]

Hi,

Does the phone get the TFTP-servers via DHCP?
Do you see any messages in the logs?
Do you see anything in the CUCM logs?

[HaiLua54]

Dear @b.winter 

The information and message log show on new Cisco7821 Web GUI as file attach. Please help advise me. thanks in advance!

[b.winter]

Does the phone get a DNS-server via DHCP options, when retrieving the IP from the DHCP?

After successfully downloading the ITL and the config-file from CUCM-Tftp, it doesn't even try to register, because it cannot resolve the hostname of the CUCM => it uses the hostname, because this is how it is set in the config-file

3248 NOT Oct 27 18:41:31.958309 (571-1334) JAVA-configmgr MQThread|cip.cfg.Config:  - Config handleTftpResponse, status=18 for file=ram/SEP34B883A1F079.cnf.xml.39426
3249 NOT Oct 27 18:41:31.958675 (571-1334) JAVA-configmgr MQThread|cip.cfg.Config:  - [traceTftpErrors] to set tftp error to 18
3250 NOT Oct 27 18:41:31.983579 (571-1334) JAVA-configmgr MQThread|cip.cfg.Config:  - config..handletftpresoponse..state=tftperr_noerr
3251 NOT Oct 27 18:41:31.993315 (571-1334) JAVA-configmgr MQThread|cip.xml.XmlParser:parse - Encoding Updated to UTF-8
3252 NOT Oct 27 18:41:32.169388 (571-1334) JAVA-configmgr MQThread|cip.xml.XmlSipConfigObject:? -  EMCC|processIPV4Adress(), ipv4=
3253 NOT Oct 27 18:41:32.170181 (571-1334) JAVA-configmgr MQThread|cip.xml.XmlSipConfigObject:? -  EMCC|processIPV6Address(), ipv6=
3254 NOT Oct 27 18:41:32.170914 (571-1334) JAVA-configmgr MQThread|cip.xml.XmlSipConfigObject:? -  EMCC|processIPV4Adress(), ipv4=
3255 NOT Oct 27 18:41:32.171646 (571-1334) JAVA-configmgr MQThread|cip.xml.XmlSipConfigObject:? -  EMCC|processIPV6Address(), ipv6=
3256 NOT Oct 27 18:41:32.183854 (571-1334) JAVA-configmgr MQThread|cip.cfg.Config:  - processConfigNoError: isInMraMode=[false]
3257 NOT Oct 27 18:41:32.184892 (571-1334) JAVA-configmgr MQThread|cip.cfg.Config:  - setConfigTvsProperty IP mode 0IP Pref 0DSCP 96
3258 INF Oct 27 11:41:32 Oct 27 18:41:32.189317 Oct 27 18:41:32.188951 dnsmasq[342]: query[A] CUCM from 127.0.0.1
3259 INF Oct 27 11:41:32 Oct 27 18:41:32.189531 Oct 27 18:41:32.189470 dnsmasq[342]: forwarded cucm to 172.25.12.2
3260 INF Oct 27 11:41:32 Oct 27 18:41:32.189684 Oct 27 18:41:32.189623 dnsmasq[342]: forwarded cucm to 192.168.61.1
3261 INF Oct 27 11:41:32 Oct 27 18:41:32.197222 Oct 27 18:41:32.197100 dnsmasq[342]: query[A] CUCM from 127.0.0.1
3262 INF Oct 27 11:41:32 Oct 27 18:41:32.197405 Oct 27 18:41:32.197375 dnsmasq[342]: forwarded cucm to 172.25.12.2
3263 INF Oct 27 11:41:32 Oct 27 18:41:32.197558 Oct 27 18:41:32.197497 dnsmasq[342]: forwarded cucm to 192.168.61.1
3264 WRN Oct 27 18:41:32.209827 (571-1334) JAVA-configmgr MQThread|NetUtil.traceIPv4DNSErrors:? - IPv4 DNS Timeout CUCM
3265 ERR Oct 27 18:41:32.210560 (571-1334) JAVA-configmgr MQThread|cip.sec.TvsProperty:? - Failed to resolve Tvs Ipv4 Address with hostname CUCM 

[b.winter]

@HaiLua54 Any update here?

[HaiLua54 · Accepted solution]

Hi @All !

Thanks all for help.

I have find out the root cause is our DHCP pool missing domain name. So the new Firmware 7821 couldn't solved DNS.

I have just add "Domain name" to DHCP pool on router and this issue solved. 

Tks/Hoai

[b.winter]

@HaiLua54 Glad to hear it works now.

Would appreciate it, if I also get an "accepted solution" for at least pointing you in the direction of a DNS problem.