AP802 Module in 1941 Router.

[thegman]

I have a AP802 module from another router a 892w and I saw that the 1941's do have a wireless version, so I wondered if it's at all possible to use that module in one of them?

If not is there a way to add wireless to that router via another method?

Any help is welcome.

Thanks

[Flavio Miranda]

Hello @thegman 

 I dont believe you can mix up module but for 1941 you can use 1941W.

 This is only 802.11n and It is end of life but depending on the purpose It Will work.

[thegman]

Thank you for the reply,

I was just trying to use up some spare bits I have laying around and thought it would make more sense to put the module into a 1941 instead of just getting another 1941 with the wireless already in and it just having a extra letter in the name

But I guess that I will just leave the module in the 892w and find something else for the 1941 to do.

[Flavio Miranda · Accepted solution]

I did not find any documentation saying it will not work. If the tray and size matches, is up to you to test. Knowing that if something went wrong, it is on you. 

 But, to be safe on this, I would recommend to get the proper module. 

[thegman]

It does match in size and the socket, I have not put it in yet.

I do see that the 1941w, uses a AP801 and not a AP802 like I thought.

I will report back if I do decide to give it a try, but I guess that has solved it for now.

Thanks

[Flavio Miranda]

Plesae, let us know. Sure more people around here can come across the same situation.

[thegman]

Just finished trying the module out in the 1941, it does seem to work sort of, the module powers and it still has the configuration from when it was in the other device, but there is no bridging interface like it would have on the other router.

During the boot up there were a few extra messages showing errors.

<snip>

PCIe: Port 1 link timeout
Failed to initialize CPU PCIe controller 1 !!
PCIe: Port 1 link timeout
Failed to initialize CPU PCIe controller 1 !!
PCIe: Port 1 link timeout
Failed to initialize CPU PCIe controller 1 !!

Cisco CISCO1941/K9 (revision 1.0) with 483328K/40960K bytes of memory.
Processor board ID FCZ1848C0FA
2 Gigabit Ethernet interfaces
1 terminal line
DRAM configuration is 64 bits wide with parity disabled.
255K bytes of non-volatile configuration memory.
255488K bytes of ATA System CompactFlash 0 (Read/Write)

*Jan  2 00:00:02.083: %SMART_LIC-6-AGENT_READY: Smart Agent for Licensing is initialized
*Jan  2 00:00:02.399: %IOS_LICENSE_IMAGE_APPLICATION-6-LICENSE_LEVEL: Module name = c1900 Next reboot level = ipbasek9 and License = ipbasek9
*Nov  5 20:43:31.619: %RBCP-7-SCP_SET_MSG: RBCP protocal on Interface Embedded-Service-Engine0/0,changed state to up
*Nov  5 20:43:32.015: %IOCTRL-3-I2C_ERROR: I2C R/W Error accessing device on io-controller I2C bus 0 : I2C Slave Device not found
-Traceback= 218D6494z 223F128Cz 21674D60z 210526D0z 210527ACz 2105293Cz 22A62778z 22A62A00z 21032BDCz 21032BC0z
*Nov  5 20:43:36.583: %IOCTRL-3-I2C_ERROR: I2C R/W Error accessing device on io-controller I2C bus 0 : I2C Slave Device not found
-Traceback= 218D6494z 223F000Cz 223F1380z 21675C20z 21393C94z 216762CCz 2105282Cz 2105293Cz 22A62778z 22A62A00z 21032BDCz 21032BC0z
*Nov  5 20:43:36.587: %IOCTRL-3-I2C_ERROR: I2C R/W Error accessing device on io-controller I2C bus 0 : I2C Slave Device not found
-Traceback= 218D6494z 223EFE80z 223F13A4z 21675C20z 21393C94z 216762CCz 2105282Cz 2105293Cz 22A62778z 22A62A00z 21032BDCz 21032BC0z
*Nov  5 20:43:36.587: %IOCTRL-3-I2C_ERROR: I2C R/W Error accessing device on io-controller I2C bus 0 : I2C Slave Device not found
-Traceback= 218D6494z 223F000Cz 223F13BCz 21675C20z 21393C94z 216762CCz 2105282Cz 2105293Cz 22A62778z 22A62A00z 21032BDCz 21032BC0z
*Nov  5 20:43:36.587: %IOCTRL-3-I2C_ERROR: I2C R/W Error accessing device on io-controller I2C bus 0 : I2C Slave Device not found
-Traceback= 218D6494z 223EFE80z 223F13DCz 21675C20z 21393C94z 216762CCz 2105282Cz 2105293Cz 22A62778z 22A62A00z 21032BDCz 21032BC0z
*Nov  5 20:43:36.591: %IOCTRL-3-I2C_ERROR: I2C R/W Error accessing device on io-controller I2C bus 0 : I2C Slave Device not found
-Traceback= 218D6494z 223F000Cz 223F144Cz 21675C20z 21393C94z 216762CCz 2105282Cz 2105293Cz 22A62778z 22A62A00z 21032BDCz 21032BC0z
*Nov  5 20:43:36.591: %IOCTRL-3-I2C_ERROR: I2C R/W Error accessing device on io-controller I2C bus 0 : I2C Slave Device not found
-Traceback= 218D6494z 223EFE80z 223F1470z 21675C20z 21393C94z 216762CCz 2105282Cz 2105293Cz 22A62778z 22A62A00z 21032BDCz 21032BC0z
*Nov  5 20:43:39.063: %IOCTRL-3-I2C_ERROR: I2C R/W Error accessing device on io-controller I2C bus 0 : I2C Slave Device not found
-Traceback= 218D5DA4z 216A4094z 21DEB058z 21DEBC48z 216A44C4z 21DEDBF8z 21617738z 2161BB4Cz 21394A68z 21393D44z 216762CCz 2105282Cz 2105293Cz 22A62778z 22A62A00z 2103
2BDCz
*Nov  5 20:43:44.703: %PA-3-NOTSUPPORTED: PA in slot1 (Unknown (type 0)) is not supported on this image/licenses enabled. Please issue "show diag" CLI command to disp
lay the PA information, verify it is supported and, if applicable, ensure the correct license key is installed. A newer image version or license key may be needed.
*Nov  5 20:43:44.703: %PA-2-BADPABAY: Out of range PCI Port Adaptor bay 1
*Nov  5 20:43:51.439: %LINK-3-UPDOWN: Interface GigabitEthernet0/0, changed state to down
*Nov  5 20:43:51.439: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to down
*Nov  5 20:43:52.595: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to down
*Nov  5 20:43:52.595: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to down
*Nov  5 20:43:53.327: %SYS-6-STARTUP_CONFIG_IGNORED: System startup configuration is ignored based on the configuration register setting.
*Nov  5 20:44:04.491: %LINK-5-CHANGED: Interface Embedded-Service-Engine0/0, changed state to administratively down
*Nov  5 20:44:04.491: %LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to administratively down
*Nov  5 20:44:04.491: %LINK-5-CHANGED: Interface GigabitEthernet0/1, changed state to administratively down
*Nov  5 20:44:05.547: %LINEPROTO-5-UPDOWN: Line protocol on Interface Embedded-Service-Engine0/0, changed state to down
*Nov  5 20:44:06.163: %SYS-5-RESTART: System restarted --
Cisco IOS Software, C1900 Software (C1900-UNIVERSALK9-M), Version 15.8(3)M7, RELEASE SOFTWARE (fc4)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2021 by Cisco Systems, Inc.
Compiled Thu 02-Sep-21 03:55 by mcpre
*Nov  5 20:44:11.859: %PNP-6-PNP_DISCOVERY_STOPPED: PnP Discovery stopped (Startup Config Present)

Router#show inventory 
NAME: "CISCO1941/K9", DESCR: "CISCO1941/K9 chassis, Hw Serial#: FCZ1848C0FA, Hw Revision: 1.0"
PID: CISCO1941/K9      , VID: V05 , SN: FCZ1848C0FA

NAME: "Unknown on Slot 0", DESCR: "Unknown"
PID:                   , VID:    , SN: 0          

NAME: "C1941/C2901 AC Power Supply", DESCR: "C1941/C2901 AC Power Supply"
PID: PWR-1941-2901-AC  , VID:    , SN:    

</snip>

I am not sure what to take from this as one error says that it is not supported on this image/license but then the module is clearly working just without anyway to route to it.

If it was a AP801 and not a AP802 I suspect it would of just been the firmware/license problem instead.

Anyway thank you for the help and hopefully this lets others know as well.

[Rich R]

I'm not surprised it doesn't work.  Even if you had the correct AP module I don't think it would work because the router PID is still the non-wireless version so IOS will not enable or configure the correct options for using the AP module.

[thegman]

Yes I also figured that would be the case as well even if I did have the correct module, I assume that is something that can not be changed or upgraded and would need to purchase the actual wireless version of the hardware instead.

[Rich R]

Exactly <smile>