Dear, we are working on this.

Hello,

The Versions of the AP and AC Do Not Match

Possible Cause

• The AC does not support the current AP model.

• The versions of the AP and AC do not match.

Troubleshooting Procedure

The AP can go online on the AC only when their versions match. If the versions of the AC and AP do not match, the following problems may occur:

• The AC does not support the current AP model. For example, the AC running V200R008C10 does not support the AP model whose source version is V200R010C00.

• The AP status displayed on the AC is ver-mismatch or vmiss.

For details about the version mapping between ACs and APs, see Quick Reference for AC and AP Version Information.

1. Run the display ap-type all command to check whether the AC supports the current AP model.

   
   

   If the AP model is not in the list, the AC of the current version does not support the AP model. In this case, upgrade the AC by referring to the corresponding upgrade guide.

   
   

2. Run the display ap all command to check whether APs in ver-mismatch or vmiss state exist in the AP list.

   
   

   If so, upgrade the AP or AC by referring to the upgrade guide to ensure that the versions of the AP and AC match.

   
   

3. 
   

Detail

https://support.huawei.com/enterprise/en/doc/EDOC1000060368/3e1c5e39/the-versions-of-the-ap-and-ac-do-not-match

Hope it helps.

Thanks

Hi,
Can you specify your AP and AC model?
Or you can download the WLAN AP Version Mapping and Models documentation for the detailed refer
https://support.huawei.com/enterprise/en/doc/EDOC1000146039?idPath=24030814|21782164|21782201|22318546|22039797

Huawei Versatile Routing Platform Software
VRP (R) software, Version 5.170 (AC6605 V200R008C10SPC300)
Copyright (C) 2011-2018 HUAWEI TECH CO., LTD
Huawei AC6605-26-PWR Router uptime is 0 week, 0 day, 15 hours, 57 minutes

<AAU-SoC-AC1>
display ap by-state ver-mismatch
Info: This operation may take a few seconds. Please wait for a moment.done.
Total AP information:
vmiss: ver-mismatch [1]
Extra information:
P : insufficient power supply
------------------------------------------------------------------------------------------------------------------
ID MAC Name Group IP Type State STA Uptime ExtraInfo
------------------------------------------------------------------------------------------------------------------
4 7ca2-3ee7-b140 7ca2-3ee7-b140 soc-student 10.24.100.254 AP6510DN-AGN vmiss 0 - -
------------------------------------------------------------------------------------------------------------------
Total: 1
<AAU-SoC-AC1>

Hello,

From the information you provided, the AC6605 is running V200R008C10SPC300, and from the mapple file, you should upgrade your AP6510DN-AGN to V200R008C10. 

Please refer to the figure below: