wifi1 interface client X.Y.Z Tx retry rate alarm threshold:40 current:74

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I am getting thousands of these per hour for the Aerohive AP’s 


 

Device AHAP08: wifi1 interface client X.Y.Z Tx retry rate alarm threshold:40 current:74

 

Event

Event Type:                        wifi1

Trap Type:                          

Device ID:                            00197723F6C0

Device Name:                    AHAP08

Time:                                     03-24-2014 15:29:28

Message:                            wifi1 interface client x.y.z Tx retry rate alarm threshold:40 current:74.

Clients do connect with the wireless but they can't do anything. Sometime client even don't get IP addresses at all. 

It works fine in some areas and some areas have this issues. 

I have gone through some article and disabled 1,2,5,5 , also gone into the AP config and checked that they have a custom radio profile and some profile need to turned on the band rating. 

corporate wireless is running on the 5ghz band only. While Mobile SSID runs on mix and guest SSID runs only on 2.4ghz.

people across the floor are complaining about performance, disconnection issues.

please help to resolve this issue.
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Nilay

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Posted 4 years ago

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Andrew MacTaggart, Champ

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My understanding is that Tx errors retries indicate that the medium is busy

this can be for many reasons.

check the ASCP neighbor info to see if the AP in question hears other APs on the same channel above -85dBm. As an example -80dBm.

Do some spectrum analysis
If you have a particular client with a high duty cycle, they could be eating up all the airtime, backing up other clients

do you have too many clients connecting to the AP, maybe you need an additional AP co-located on a different channel.

think about disabling more of the lower Rates, lowering the AP power and turning on airtime fairness, you may need to add more APs

maybe consider load balancing between 2.4Ghz and 5Ghz radios

I had a location which was a staging area for ipads and ipods client counts where 50+ on wifi1[5Ghz], so I turned on wifi0 and load balanced the clients on both radios.

Cheers
A



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Nilay

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Thanks,

I will try this and post you with reply. 

Regards,
Nilay.
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Nilay

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·         “check the ASCP neighbor info to see if the AP in question hears other APs on the same channel above -85dBm. As an example -80dBm. – Attached screenshot shows one of our AP’s which seems all are below -80dBm, though I am intrigued to see they all on channel 11 (might just be the way it checks)

·         Do some spectrum analysis
If you have a particular client with a high duty cycle, they could be eating up all the airtime, backing up other clients –  in screenshot below interference is quite low, but doesn’t show duty-cycle

·         Do you have too many clients connecting to the AP, maybe you need an additional AP co-located on a different channel. –Thought 15 clients across three SSID’s was reasonable

·         Think about disabling more of the lower Rates, lowering the AP power and turning on airtime fairness, you may need to add more Aps – Done disabling the 1,2,5,5 already.

·         Maybe consider load balancing between 2.4Ghz and 5Ghz radios –Already in place (in radio policy)

·         I had a location which was a staging area for ipads and ipods client counts where 50+ on wifi1[5Ghz], so I turned on wifi0 and load balanced the clients on both radios. “ – Environment isn’t that loaded per AP, and probably around 40 % of devices are Apple

Regards

Nilay 

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Andrew MacTaggart, Champ

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Hi Nilay

for clients not getting IP addresses, you will want to verify your DHCP settings and vlans to make sure there are enough addresses for your clients.

You will need to look at your clients to see where and what the problem is.

the last 8 hours show 30 clients connecting. Are they connecting to 5Ghz or 2.4Ghz, where are the troubled clients connecting?

try running some reports on the AP in question

Wi-Fi Devices > Edit 'def-interference_report'

some other threads to review

https://community.aerohive.com/aerohive/topics/retry_rate_alarm_threshold_errors_on_wifi1_interface

https://community.aerohive.com/aerohive/topics/error_message_ap_ah_xxxx_wifi0_interface_tx_retry_rat...




(Edited)
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Nilay

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Thanks for the help. I will try to obtain more information. By the way I am in NZ and if I want to log a fault with Aerohive tech, whom do I contact or what is the process for that?