Deco M5 speed degrades after a few days
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I have the following setup
Deco M5 (main) -(utp)-> TP link switch SG105 -(utp)-> Deco M5
-(utp)-> TP link switch SG105 -(utp)-> Deco M5
-(utp)-> Deco M5 (X) -(utp)-> Laptop
The Deco M5 marked with X is the one giving trouble; what happens is this:
Everything works fine, after a few days the performance of that Deco degrades (from 500Mbps to around 85-90Mbps).
When I switch both utp cables from position the performance is back to normal again. After a few days I need to repeat this.
The other deco's do not have this problem. I tried replacing cables but the issue remains.
What can be the cause of this? Is there someway that I can debug this to see why this deco decides to maximize this the speed to 85-90Mbps.
(btw it is always around 85-90Mbps).
Best regards,
Lars
@TP-Link So I finally found the culprit. It was one of the switches that caused the speed to degrade. When logged in in the SG105e I noticed that one of the ports has its Speed/Duplex actual setting to 100MF (when Config was set to Auto). When changing that to manual 1000MF the performance no longer degraded. See image below, Port 4 was reporting only 100MF.
What can be the reason that this is automatically set to 100MF when the Config is set to AUTO instead of 1000MF?
@TP-Link So I finally found the culprit. It was one of the switches that caused the speed to degrade. When logged in in the SG105e I noticed that one of the ports has its Speed/Duplex actual setting to 100MF (when Config was set to Auto). When changing that to manual 1000MF the performance no longer degraded. See image below, Port 4 was reporting only 100MF.
What can be the reason that this is automatically set to 100MF when the Config is set to AUTO instead of 1000MF?