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Cisco 1941W

Matt Wilson
Beginner
Beginner

I have a 1941 with the security licence. I also bought a 1941W cheaply off eBay. It only had a base licence. I tried swapping the wireless module from the 1941W to the 1941. The 1941 would not recognise it and threw up errors. Both have the latest IOS and bootrom. Any ideas as to why the 1941 would not recognse the wireless module?

 

Cheers, Matt.

1 Accepted Solution

Accepted Solutions

I doubt that that will work.  The PID is burned into the router and adding the module won't change the PID.  I expect that IOS will only activate the wireless module in a W router with the wireless PID.  That's probably intentional because of regulatory implications for the products.  In any event I'd expect to see something in the logs when it boots up.

___________________________________________
TAC recommended codes for AireOS WLC's
Best Practices for AireOS WLC's
TAC recommended codes for 9800 WLC's
Best Practices for 9800 WLC's
Cisco Wireless compatibility matrix
Field Notice: FN-72424 Later Versions of WiFi 6 APs Fail to Join WLC - Software Upgrade Recommended
WARNING - see CSCwd37092 Throughput degraded after upgrading to code 8.10.181.0/17.3.6 - 2800/3800/4800 series
- The fix for CSCwd37092 is now released in 8.10.183.0 and
- For IOS-XE 17.3.6 select controller model, go to IOS XE Software AP Service Pack, select CSCwd40096 17.3.6 APSP2
Field Notice: FN-63942 Lightweight APs and WLCs Fail to Create CAPWAP Connections Due to Certificate
                      Expiration - Software Upgrade Recommended
Field Notice: FN-72524 - During Software Upgrade/Downgrade IOS APs Might Remain in Downloading State
                     After 4 Dec 2022 Due to Certificate Expiration - Fixed in 8.10.183.0 and 17.3.6 APSP5 (APSP_CSCwd83653)
                     Also fixed in 8.5.182.7 (8.5 mainline) and 8.5.182.105 (8.5 IRCM) if you can't upgrade to 8.10
                     Note that 8.10.181.0 and 8.10.182.0 have been deferred (withdrawn) and are effectively unsupported by Cisco
___________________________________________
Richard R

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4 Replies 4

balaji.bandi
VIP Community Legend VIP Community Legend
VIP Community Legend

 I do not believe that way it works - I never tried it, if that is the case why cisco produce 1941 and 1941W ? 

 

Note : both are end of Life now.

 

BB

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Matt Wilson
Beginner
Beginner

I might add that when swapped back both routers worked flawlessly.

I doubt that that will work.  The PID is burned into the router and adding the module won't change the PID.  I expect that IOS will only activate the wireless module in a W router with the wireless PID.  That's probably intentional because of regulatory implications for the products.  In any event I'd expect to see something in the logs when it boots up.

___________________________________________
TAC recommended codes for AireOS WLC's
Best Practices for AireOS WLC's
TAC recommended codes for 9800 WLC's
Best Practices for 9800 WLC's
Cisco Wireless compatibility matrix
Field Notice: FN-72424 Later Versions of WiFi 6 APs Fail to Join WLC - Software Upgrade Recommended
WARNING - see CSCwd37092 Throughput degraded after upgrading to code 8.10.181.0/17.3.6 - 2800/3800/4800 series
- The fix for CSCwd37092 is now released in 8.10.183.0 and
- For IOS-XE 17.3.6 select controller model, go to IOS XE Software AP Service Pack, select CSCwd40096 17.3.6 APSP2
Field Notice: FN-63942 Lightweight APs and WLCs Fail to Create CAPWAP Connections Due to Certificate
                      Expiration - Software Upgrade Recommended
Field Notice: FN-72524 - During Software Upgrade/Downgrade IOS APs Might Remain in Downloading State
                     After 4 Dec 2022 Due to Certificate Expiration - Fixed in 8.10.183.0 and 17.3.6 APSP5 (APSP_CSCwd83653)
                     Also fixed in 8.5.182.7 (8.5 mainline) and 8.5.182.105 (8.5 IRCM) if you can't upgrade to 8.10
                     Note that 8.10.181.0 and 8.10.182.0 have been deferred (withdrawn) and are effectively unsupported by Cisco
___________________________________________
Richard R

That makes sense. Thanks for your help.

 

Matt.

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