CISCO 1941 CANNOT GET IP FROM ISP DHCP WHILE 1841 CAN GET IT

[acrz6666]

Hello.

I have a Cisco 1941 connected to a FTTH ISP through a ONT. The WAN port must be tagged (VLAN 832) and the IP is got in DHCP mode.

I had a Cisco 1841 with the same configuration and it worked fine, but my new Cisco 1941 cannont get an IP from the IPS. I debugged the Cisco 1941 and found the next message:

cisco DHCP: No authen config but message has authen info – protocol 0 algorithm 0

Then, I looked for the parameters and cofigured the next:

!
ip dhcp-client forcerenew
!

!
key chain dhcp724
key 0
key-string dhcpliveboxes724
!

interface GigabitEthernet0/1
no ip address
no ip redirects
no ip proxy-arp
duplex auto
speed auto
!

interface GigabitEthernet0/1.232
encapsulation dot1Q 832
ip dhcp client lease 1 0 0
ip dhcp client authentication key-chain dhcp724
ip dhcp client authentication mode token
ip address dhcp
ip nat outside
ip virtual-reassembly in
!

At this moment, the message "cisco DHCP: No authen config but message has authen info – protocol 0 algorithm 0" have disappeared but it is still failing.

When I debug, I get the next messages:

*Aug 20 09:07:00.479: DHCP: Try 20 to acquire address for GigabitEthernet0/1.232
*Aug 20 09:07:00.479: DHCP: allocate request
*Aug 20 09:07:00.479: DHCP: new entry. add to queue, interface GigabitEthernet0/1.232
*Aug 20 09:07:00.479: DHCP: SDiscover attempt # 1 for entry:
*Aug 20 09:07:00.479: Temp IP addr: 0.0.0.0 for peer on Interface: GigabitEthernet0/1.232
*Aug 20 09:07:00.479: Temp sub net mask: 0.0.0.0
*Aug 20 09:07:00.479: DHCP Lease server: 0.0.0.0, state: 3 Selecting
*Aug 20 09:07:00.479: DHCP transaction id: 25A8
*Aug 20 09:07:00.479: Lease: 86400 secs, Renewal: 0 secs, Rebind: 0 secs
*Aug 20 09:07:00.479: Next timer fires after: 00:00:04
*Aug 20 09:07:00.479: Retry count: 1 Client-ID: cisco-c464.13ad.4c41-Gi0/1.232
*Aug 20 09:07:00.479: Client-ID hex dump: 636973636F2D633436342E313361642E
*Aug 20 09:07:00.479: 346334312D4769302F312E323332
*Aug 20 09:07:00.479: Hostname: yourname
*Aug 20 09:07:00.479: DHCP: SDiscover placed lease len option: 86400
*Aug 20 09:07:00.479: DHCP: SDiscover placed class-id option: 636973636F706E70
*Aug 20 09:07:00.479: DHCP: SDiscover: sending 330 byte length DHCP packet
*Aug 20 09:07:00.479: DHCP: SDiscover 330 bytes
*Aug 20 09:07:00.479: B'cast on GigabitEthernet0/1.232 interface from 0.0.0.0
*Aug 20 09:07:00.563: DHCP: Received a BOOTREP pkt
*Aug 20 09:07:00.563: DHCP: Scan: Message type: DHCP Offer
*Aug 20 09:07:00.563: DHCP: Scan: Server ID Option: 81.52.127.254 = 51347FFE
*Aug 20 09:07:00.563: DHCP: Scan: Lease Time: 86400
*Aug 20 09:07:00.567: DHCP: Scan: Subnet Address Option: 255.255.252.0
*Aug 20 09:07:00.567: DHCP: Scan: Router Option: 92.176.75.254
*Aug 20 09:07:00.567: DHCP: Scan: DNS Name Server Option: 62.36.225.150, 62.37.228.20
*Aug 20 09:07:00.567: DHCP: Scan: Rebind time: 75600
*Aug 20 09:07:00.567: DHCP: Scan: Renewal time: 43200
*Aug 20 09:07:00.567: DHCP: Scan: Domain Name: orange.es
*Aug 20 09:07:00.567: DHCP: Scan: Token Authen Message Option:
*Aug 20 09:07:00.567: DHCP: rcvd pkt source: 92.176.75.254, destination: 255.255.255.255
*Aug 20 09:07:00.567: UDP sport: 43, dport: 44, length: 338
*Aug 20 09:07:00.567: DHCP op: 2, htype: 1, hlen: 6, hops: 0
*Aug 20 09:07:00.567: DHCP server identifier: 81.52.127.254
*Aug 20 09:07:00.567: xid: 25A8, secs: 0, flags: 8000
*Aug 20 09:07:00.567: client: 0.0.0.0, your: 92.176.xx.xx
*Aug 20 09:07:00.567: srvr: 81.52.127.254, gw: 92.176.66.254
*Aug 20 09:07:00.567: options block length: 90

*Aug 20 09:07:00.567: DHCP Offer Message Offered Address: 92.176.xx.xx
*Aug 20 09:07:00.567: DHCP: Lease Seconds: 86400 Renewal secs: 43200 Rebind secs: 75600
*Aug 20 09:07:00.567: DHCP: Server ID Option: 81.52.127.254
*Aug 20 09:07:00.567: DHCP: Received shared token packet
*Aug 20 09:07:00.567: DHCP: Message shared token check pass
*Aug 20 09:07:00.567: DHCP: offer received from 81.52.127.254
*Aug 20 09:07:00.567: DHCP: SRequest attempt # 1 for entry:
*Aug 20 09:07:00.567: Temp IP addr: 92.176.xx.xx for peer on Interface: GigabitEthernet0/1.232
*Aug 20 09:07:00.567: Temp sub net mask: 255.255.252.0
*Aug 20 09:07:00.567: DHCP Lease server: 81.52.127.254, state: 4 Requesting
*Aug 20 09:07:00.567: DHCP transaction id: 25A8
*Aug 20 09:07:00.567: Lease: 86400 secs, Renewal: 0 secs, Rebind: 0 secs
*Aug 20 09:07:00.567: Next timer fires after: 00:00:03
*Aug 20 09:07:00.567: Retry count: 1 Client-ID: cisco-c464.13ad.4c41-Gi0/1.232
*Aug 20 09:07:00.567: Client-ID hex dump: 636973636F2D633436342E313361642E
*Aug 20 09:07:00.567: 346334312D4769302F312E323332
*Aug 20 09:07:00.567: Hostname: yourname
*Aug 20 09:07:00.567: DHCP: SRequest- Server ID option: 81.52.127.254
*Aug 20 09:07:00.567: DHCP: SRequest- Requested IP addr option: 92.176.xx.xx
*Aug 20 09:07:00.567: DHCP: SRequest placed lease len option: 86400
*Aug 20 09:07:00.567: DHCP: SRequest placed class-id option: 636973636F706E70
*Aug 20 09:07:00.567: DHCP: SRequest: 358 bytes
*Aug 20 09:07:00.567: DHCP: SRequest: 358 bytes
*Aug 20 09:07:00.567: B'cast on GigabitEthernet0/1.232 interface from 0.0.0.0
*Aug 20 09:07:00.855: DHCP: Received a BOOTREP pkt
*Aug 20 09:07:00.855: DHCP: Scan: Message type: DHCP Ack
*Aug 20 09:07:00.855: DHCP: Scan: Server ID Option: 81.52.127.254 = 51347FFE
*Aug 20 09:07:00.855: DHCP: Scan: Lease Time: 86400
*Aug 20 09:07:00.855: DHCP: Scan: Subnet Address Option: 255.255.252.0
*Aug 20 09:07:00.855: DHCP: Scan: Router Option: 92.176.75.254
*Aug 20 09:07:00.855: DHCP: Scan: DNS Name Server Option: 62.36.225.150, 62.37.228.20
*Aug 20 09:07:00.855: DHCP: Scan: Rebind time: 75600
*Aug 20 09:07:00.855: DHCP: Scan: Renewal time: 43200
*Aug 20 09:07:00.855: DHCP: Scan: Domain Name: orange.es
*Aug 20 09:07:00.855: DHCP: Scan: Token Authen Message Option:
*Aug 20 09:07:00.855: DHCP: rcvd pkt source: 92.176.75.254, destination: 255.255.255.255
*Aug 20 09:07:00.855: UDP sport: 43, dport: 44, length: 338
*Aug 20 09:07:00.855: DHCP op: 2, htype: 1, hlen: 6, hops: 0
*Aug 20 09:07:00.855: DHCP server identifier: 81.52.127.254
*Aug 20 09:07:00.855: xid: 25A8, secs: 0, flags: 8000
*Aug 20 09:07:00.855: client: 0.0.0.0, your: 92.176.xx.xx
*Aug 20 09:07:00.855: srvr: 81.52.127.254, gw: 92.176.66.254
*Aug 20 09:07:00.855: options block length: 90

*Aug 20 09:07:00.855: DHCP Ack Message
*Aug 20 09:07:00.855: DHCP: Lease Seconds: 86400 Renewal secs: 43200 Rebind secs: 75600
*Aug 20 09:07:00.855: DHCP: Server ID Option: 81.52.127.254
*Aug 20 09:07:00.855: DHCP: Message 5 replay check fail – new 0 old 0
*Aug 20 09:07:00.855: DHCP: SDiscover attempt # 1 for entry:
*Aug 20 09:07:00.855: Temp IP addr: 92.176.xx.xx for peer on Interface: GigabitEthernet0/1.232
*Aug 20 09:07:00.855: Temp sub net mask: 255.255.252.0
*Aug 20 09:07:00.855: DHCP Lease server: 81.52.127.254, state: 3 Selecting
*Aug 20 09:07:00.855: DHCP transaction id: 25A8
*Aug 20 09:07:00.855: Lease: 86400 secs, Renewal: 0 secs, Rebind: 0 secs
*Aug 20 09:07:00.855: Next timer fires after: 00:00:04
*Aug 20 09:07:00.855: Retry count: 1 Client-ID: cisco-c464.13ad.4c41-Gi0/1.232
*Aug 20 09:07:00.855: Client-ID hex dump: 636973636F2D633436342E313361642E
*Aug 20 09:07:00.859: 346334312D4769302F312E323332
*Aug 20 09:07:00.859: Hostname: yourname
*Aug 20 09:07:00.859: DHCP: SDiscover placed lease len option: 86400
*Aug 20 09:07:00.859: DHCP: SDiscover placed class-id option: 636973636F706E70
*Aug 20 09:07:00.859: DHCP: SDiscover: sending 330 byte length DHCP packet
*Aug 20 09:07:00.859: DHCP: SDiscover with directed serv 81.52.127.254, 330 bytes
*Aug 20 09:07:04.135: DHCP: SDiscover attempt # 2 for entry:
*Aug 20 09:07:04.135: Temp IP addr: 92.176.xx.xx for peer on Interface: GigabitEthernet0/1.232
*Aug 20 09:07:04.135: Temp sub net mask: 255.255.252.0
*Aug 20 09:07:04.135: DHCP Lease server: 81.52.127.254, state: 3 Selecting
*Aug 20 09:07:04.135: DHCP transaction id: 25A8
*Aug 20 09:07:04.135: Lease: 86400 secs, Renewal: 0 secs, Rebind: 0 secs
*Aug 20 09:07:04.135: Next timer fires after: 00:00:04
*Aug 20 09:07:04.135: Retry count: 2 Client-ID: cisco-c464.13ad.4c41-Gi0/1.232
*Aug 20 09:07:04.135: Client-ID hex dump: 636973636F2D633436342E313361642E
*Aug 20 09:07:04.135: 346334312D4769302F312E323332
*Aug 20 09:07:04.135: Hostname: yourname
*Aug 20 09:07:04.135: DHCP: SDiscover placed lease len option: 86400
*Aug 20 09:07:04.135: DHCP: SDiscover placed class-id option: 636973636F706E70
*Aug 20 09:07:04.135: DHCP: SDiscover: sending 330 byte length DHCP packet
*Aug 20 09:07:04.135: DHCP: SDiscover with directed serv 81.52.127.254, 330 bytes
*Aug 20 09:07:08.135: DHCP: SDiscover attempt # 3 for entry:
*Aug 20 09:07:08.135: Temp IP addr: 92.176.xx.xx for peer on Interface: GigabitEthernet0/1.232
*Aug 20 09:07:08.135: Temp sub net mask: 255.255.252.0
*Aug 20 09:07:08.135: DHCP Lease server: 81.52.127.254, state: 3 Selecting
*Aug 20 09:07:08.135: DHCP transaction id: 25A8
*Aug 20 09:07:08.135: Lease: 86400 secs, Renewal: 0 secs, Rebind: 0 secs
*Aug 20 09:07:08.135: Next timer fires after: 00:00:04
*Aug 20 09:07:08.135: Retry count: 3 Client-ID: cisco-c464.13ad.4c41-Gi0/1.232
*Aug 20 09:07:08.135: Client-ID hex dump: 636973636F2D633436342E313361642E
*Aug 20 09:07:08.135: 346334312D4769302F312E323332
*Aug 20 09:07:08.135: Hostname: yourname
*Aug 20 09:07:08.135: DHCP: SDiscover placed lease len option: 86400
*Aug 20 09:07:08.135: DHCP: SDiscover placed class-id option: 636973636F706E70
*Aug 20 09:07:08.135: DHCP: SDiscover: sending 330 byte length DHCP packet
*Aug 20 09:07:08.135: DHCP: SDiscover with directed serv 81.52.127.254, 330 bytes
*Aug 20 09:07:12.159: DHCP: QScan: Timed out Selecting state%Unknown DHCP problem.. No allocation possible
*Aug 20 09:07:20.991: DHCP: Waiting for 60 seconds on interface GigabitEthernet0/1.232

I think the key is the next message, as that is the point where the debug of my new Cisco 1941 and my old Cisco 1841 are different, apart from the messages related to the authentication:

DHCP: Message 5 replay check fail – new 0 old 0

But I have not found information about it.

I have updated the IOS to c1900-universalk9-mz.SPA.154-3.M7.bin.

Could any one help me?

Thanks.

Alejandro

I also attach the Cisco 1841 debug, in case it can be usefull:

yourname(config-subif)#no shut
yourname(config-subif)#
001445: *Aug 20 13:09:00.682 PCTime: DHCP: DHCP client process started: 10
001446: *Aug 20 13:09:00.686 PCTime: RAC: Starting DHCP discover on FastEthernet0/0.232
001447: *Aug 20 13:09:00.686 PCTime: DHCP: Try 1 to acquire address for FastEthernet0/0.232
001448: *Aug 20 13:09:00.698 PCTime: DHCP: allocate request
001449: *Aug 20 13:09:00.698 PCTime: DHCP: new entry. add to queue, interface FastEthernet0/0.232
001450: *Aug 20 13:09:00.702 PCTime: DHCP: SDiscover attempt # 1 for entry:
001451: *Aug 20 13:09:00.702 PCTime: Temp IP addr: 0.0.0.0 for peer on Interface: FastEthernet0/0.232
001452: *Aug 20 13:09:00.702 PCTime: Temp sub net mask: 0.0.0.0
001453: *Aug 20 13:09:00.702 PCTime: DHCP Lease server: 0.0.0.0, state: 3 Selecting
001454: *Aug 20 13:09:00.702 PCTime: DHCP transaction id: 1A56
001455: *Aug 20 13:09:00.702 PCTime: Lease: 0 secs, Renewal: 0 secs, Rebind: 0 secs
001456: *Aug 20 13:09:00.702 PCTime: Next timer fires after: 00:00:04
001457: *Aug 20 13:09:00.702 PCTime: Retry count: 1 Client-ID: cisco-18ef.6361.5224-Fa0/0.232
001458: *Aug 20 13:09:00.702 PCTime: Client-ID hex dump: 636973636F2D313865662E363336312E
001459: *Aug 20 13:09:00.702 PCTime: 353232342D4661302F302E323332
001460: *Aug 20 13:09:00.702 PCTime: Hostname: yourname
001461: *Aug 20 13:09:00.702 PCTime: DHCP: SDiscover placed class-id option: 64736C666F72756D2E6F7267
001462: *Aug 20 13:09:00.702 PCTime: DHCP: SDiscover: sending 328 byte length DHCP packet
001463: *Aug 20 13:09:00.702 PCTime: DHCP: SDiscover 328 bytes
001464: *Aug 20 13:09:00.702 PCTime: B'cast on FastEthernet0/0.232 interface from 0.0.0.0
001465: *Aug 20 13:09:01.546 PCTime: DHCP: Received a BOOTREP pkt
001466: *Aug 20 13:09:01.546 PCTime: DHCP: Scan: Message type: DHCP Offer
001467: *Aug 20 13:09:01.546 PCTime: DHCP: Scan: Server ID Option: 81.52.127.254 = 51347FFE
001468: *Aug 20 13:09:01.546 PCTime: DHCP: Scan: Lease Time: 86400
001469: *Aug 20 13:09:01.546 PCTime: DHCP: Scan: Subnet Address Option: 255.255.252.0
001470: *Aug 20 13:09:01.546 PCTime: DHCP: Scan: Router Option: 92.176.75.254
001471: *Aug 20 13:09:01.546 PCTime: DHCP: Scan: DNS Name Server Option: 62.36.225.150, 62.37.228.20
001472: *Aug 20 13:09:01.546 PCTime: DHCP: Scan: Rebind time: 75600
001473: *Aug 20 13:09:01.546 PCTime: DHCP: Scan: Renewal time: 43200
001474: *Aug 20 13:09:01.550 PCTime: DHCP: Scan: Domain Name: orange.es
001475: *Aug 20 13:09:01.550 PCTime: DHCP: rcvd pkt source: 92.176.75.254, destination: 255.255.255.255
001476: *Aug 20 13:09:01.550 PCTime: UDP sport: 43, dport: 44, length: 338
001477: *Aug 20 13:09:01.550 PCTime: DHCP op: 2, htype: 1, hlen: 6, hops: 0
001478: *Aug 20 13:09:01.550 PCTime: DHCP server identifier: 81.52.127.254
001479: *Aug 20 13:09:01.550 PCTime: xid: 1A56, secs: 0, flags: 8000
001480: *Aug 20 13:09:01.550 PCTime: client: 0.0.0.0, your: 92.176.xx.xx
001481: *Aug 20 13:09:01.550 PCTime: srvr: 81.52.127.254, gw: 92.176.66.254
001482: *Aug 20 13:09:01.550 PCTime: options block length: 90

001483: *Aug 20 13:09:01.550 PCTime: DHCP Offer Message Offered Address: 92.176.xx.xx
001484: *Aug 20 13:09:01.550 PCTime: DHCP: Lease Seconds: 86400 Renewal secs: 43200 Rebind secs: 75600
001485: *Aug 20 13:09:01.550 PCTime: DHCP: Server ID Option: 81.52.127.254
001486: *Aug 20 13:09:01.550 PCTime: DHCP: offer received from 81.52.127.254
001487: *Aug 20 13:09:01.550 PCTime: DHCP: SRequest attempt # 1 for entry:
001488: *Aug 20 13:09:01.550 PCTime: Temp IP addr: 92.176.xx.xx for peer on Interface: FastEthernet0/0.232
001489: *Aug 20 13:09:01.550 PCTime: Temp sub net mask: 255.255.252.0
001490: *Aug 20 13:09:01.550 PCTime: DHCP Lease server: 81.52.127.254, state: 4 Requesting
001491: *Aug 20 13:09:01.550 PCTime: DHCP transaction id: 1A56
001492: *Aug 20 13:09:01.550 PCTime: Lease: 86400 secs, Renewal: 0 secs, Rebind: 0 secs
001493: *Aug 20 13:09:01.550 PCTime: Next timer fires after: 00:00:03
001494: *Aug 20 13:09:01.550 PCTime: Retry count: 1 Client-ID: cisco-18ef.6361.5224-Fa0/0.232
001495: *Aug 20 13:09:01.550 PCTime: Client-ID hex dump: 636973636F2D313865662E363336312E
001496: *Aug 20 13:09:01.550 PCTime: 353232342D4661302F302E323332
001497: *Aug 20 13:09:01.550 PCTime: Hostname: yourname
001498: *Aug 20 13:09:01.550 PCTime: DHCP: SRequest- Server ID option: 81.52.127.254
001499: *Aug 20 13:09:01.550 PCTime: DHCP: SRequest- Requested IP addr option: 92.176.xx.xx
001500: *Aug 20 13:09:01.550 PCTime: DHCP: SRequest placed lease len option: 86400
001501: *Aug 20 13:09:01.550 PCTime: DHCP: SRequest placed class-id option: 64736C666F72756D2E6F7267
001502: *Aug 20 13:09:01.554 PCTime: DHCP: SRequest: 346 bytes
001503: *Aug 20 13:09:01.554 PCTime: DHCP: SRequest: 346 bytes
001504: *Aug 20 13:09:01.554 PCTime: B'cast on FastEthernet0/0.232 interface from 0.0.0.0
001505: *Aug 20 13:09:02.310 PCTime: DHCP: Received a BOOTREP pkt
001506: *Aug 20 13:09:02.310 PCTime: DHCP: Scan: Message type: DHCP Ack
001507: *Aug 20 13:09:02.310 PCTime: DHCP: Scan: Server ID Option: 81.52.127.254 = 51347FFE
001508: *Aug 20 13:09:02.310 PCTime: DHCP: Scan: Lease Time: 86400
001509: *Aug 20 13:09:02.310 PCTime: DHCP: Scan: Subnet Address Option: 255.255.252.0
001510: *Aug 20 13:09:02.310 PCTime: DHCP: Scan: Router Option: 92.176.75.254
001511: *Aug 20 13:09:02.310 PCTime: DHCP: Scan: DNS Name Server Option: 62.36.225.150, 62.37.228.20
001512: *Aug 20 13:09:02.310 PCTime: DHCP: Scan: Rebind time: 75600
001513: *Aug 20 13:09:02.310 PCTime: DHCP: Scan: Renewal time: 43200
001514: *Aug 20 13:09:02.310 PCTime: DHCP: Scan: Domain Name: orange.es
001515: *Aug 20 13:09:02.310 PCTime: DHCP: rcvd pkt source: 92.176.75.254, destination: 255.255.255.255
001516: *Aug 20 13:09:02.310 PCTime: UDP sport: 43, dport: 44, length: 338
001517: *Aug 20 13:09:02.310 PCTime: DHCP op: 2, htype: 1, hlen: 6, hops: 0
001518: *Aug 20 13:09:02.310 PCTime: DHCP server identifier: 81.52.127.254
001519: *Aug 20 13:09:02.314 PCTime: xid: 1A56, secs: 0, flags: 8000
001520: *Aug 20 13:09:02.314 PCTime: client: 0.0.0.0, your: 92.176.xx.xx
001521: *Aug 20 13:09:02.314 PCTime: srvr: 81.52.127.254, gw: 92.176.66.254
001522: *Aug 20 13:09:02.314 PCTime: options block length: 90

001523: *Aug 20 13:09:02.314 PCTime: DHCP Ack Message
001524: *Aug 20 13:09:02.314 PCTime: DHCP: Lease Seconds: 86400 Renewal secs: 43200 Rebind secs: 75600
001525: *Aug 20 13:09:02.314 PCTime: DHCP: Server ID Option: 81.52.127.254
001526: *Aug 20 13:09:06.334 PCTime: DHCP: Releasing ipl options:
001527: *Aug 20 13:09:06.334 PCTime: DHCP: Applying DHCP options:
001528: *Aug 20 13:09:06.334 PCTime: Setting default_gateway to 92.176.75.254
001529: *Aug 20 13:09:06.334 PCTime: Adding default route 92.176.75.254
001530: *Aug 20 13:09:07.334 PCTime: Adding route to DHCP server 81.52.127.254 via FastEthernet0/0.232 92.176.75.254
001531: *Aug 20 13:09:07.334 PCTime: Adding DNS server address 62.36.225.150
001532: *Aug 20 13:09:07.334 PCTime: Adding DNS server address 62.37.228.20
001533: *Aug 20 13:09:07.334 PCTime: DHCP Client Pooling: ***Allocated IP address: 92.176.xx.xx
001534: *Aug 20 13:09:07.358 PCTime: Allocated IP address = 92.176.xx.xx 255.255.252.0

001535: *Aug 20 13:09:07.358 PCTime: %DHCP-6-ADDRESS_ASSIGN: Interface FastEthernet0/0.232 assigned DHCP address 92.176.xx.xx, mask 255.255.252.0, hostname yourname

[Georg Pauwen]

Hello,

does that problem persist with md5 instead of token ?

ip dhcp client authentication mode md5

[acrz6666]

I have changed to md5 and it is still failing. With that change, I have this new message:

DHCP: Authen config (1, 1) not match packet (0, 0)

It looks that the correct authentication method is token. On other side, I saw this authentication method y a wireshark trace with the the other Cisco 1841 working properly.

Any other idea?

Thanks.

[manueg1980]

Same frustating thing here.... Several 1801 working fine with Orange Spain. 1921 getting ip on first attempt but failing on DHCP renew... (DHCP: Message 5 replay check fail always)