Force 425 AP TX rate "sticking" at low rate

A number of times now I have seen an issue where for some unknown reason, the AP TX rate on a force 425 link will drop and “stick” at some arbitrarily low rate. An example from today is that I logged into one of the links and noticed the AP TX rate was stuck at SS5. Last week on a different link, the AP TX rate was stuck at SS0. On both of these links the channel in use is quite clean, according to the spectrum analyzer.

The “fix” is to kick the station and when it re-associates, the rates resume at their normal high numbers for some time. In the case of these two links that would be DS9 in both directions on one, and DS11 in both directions on the other.

Is this behavior one that has been addressed by AXG-4475 in the new beta? All of my links are running 5.1.3 currently.

7 day view of one of these links:

Last 6 hours of same link. You can see when I kicked the station and it came back:

I should clarify that most of the links I’ve seen this on are fairly low traffic. The one pictured above is essentially idle most of the time, acting as a backup to a Siklu 80Ghz link.

I have seen this behavior though on one link that averages ~100Mbps of traffic in the evenings.

We see this as well. Only solution is a reboot.

It is definitely not AXG-4475.
@Jacob_Turner Could you PM me tech supports right after you observe the issue?

I’ve PM’d you the tech support files from both sides of this link. Both were taken just before I made this post.


1 Like

i have the same issue with Force 425 and reboots haven’t fix it!! any idea ???

What version firmware are you running?
Have you tried the latest 5.3-RC21 firmware?

Version 5.1.3
I will try FW 5.3-RC21


1 Like


The Same after update

With 5.3-RC21 there are different rate algorithms (High Throughput, Balanced, Low Latency) that can be set on the Master side.

Does switching that up or down either way make any difference? We don’t see this ‘rate sticking’ ourselves, but I thought maybe if you tried the three difference algorithms, just to see if they make any difference?