Hi Abdulah.
AP-635 is Enterprise product. Don't confuse Aruba Instant and HPE InstantON brands.
You will have much better chance to get an answer from Airheads Wireless community.
What bands do you have enabled on ssid?

What mode do you have configured for 2,4GHz on APs?

Check the show tech-support output to see, if there are any problems with radios.
Best, Gorazd
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Gorazd Kikelj
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