Hello,
I have a very simple wifi connection (AP - AP Client) using 2 TP_Link CPE 210 with 1km distance.
Signal is good with good stability.
When I connect the equipment using encryption (WPA2, WPA3 or even OWA) after some hours or heavy traffic, the link starts to have latency to a level that is unstable and highly unreliable. To solve it I have to re-start the network.
The only solution I found by using: a fully open network with mac filtering only!! Then the link works stable without any kind of problem ... except the potential security risk.
I tried many parameter variants that were in this forum and none did work ...
Thank you in advance for your help!!
Client is a:
Model TP-Link CPE210 v3
Architecture|Qualcomm Atheros QCA9533 ver 2 rev 0
Firmware Version|OpenWrt 21.02.0 r16279-5cc0535800 / LuCI openwrt-21.02 branch git-21.285.75922-4fd8c83|
AP is a:
Model|TP-Link CPE210 v2
Architecture|Qualcomm Atheros QCA9533 ver 2 rev 0|
Firmware Version|OpenWrt 21.02.0 r16279-5cc0535800 / LuCI openwrt-21.02 branch git-21.285.75922-4fd8c83
Solve the issue by increasing the memory for the device (plus offloading NAT processing), no more drops or instability since then. It seems that this could be not related to encryption...
On the one that has the router function (on the startup script):
# Put your custom commands here that should be executed once
# the system init finished. By default this file does nothing.
/usr/sbin/iw phy phy0 set txq memory_limit 16388608
logger `iw phy phy0 get txq`
exit 0
__
In addition, I activated in this router the two options: Routing/NAT Offloading (under firewall)
On the one that has the AP function (on the startup script):
# Put your custom commands here that should be executed once
# the system init finished. By default this file does nothing.
/usr/sbin/iw phy phy0 set txq memory_limit 8388608
logger `iw phy phy0 get txq`
exit 0
Those changes solved my issue, hope it solves also yours ... performance & stability are now great for this rather old HW.
current version is now the latest stable version available:
OpenWrt 21.02.1 r16325-88151b8303 / LuCI openwrt-21.02 branch git-21.295.67054-13df80d
with mac filtering only!! Then the link works stable without any kind of problem ... except the potential security risk.