rax70 internet speed decreases overnight until reboot

Question

Im using firmware V1.0.1.78 and this is the "latest" today 23Nov20.&nbsp; At reboot, internet upload and download speeds are great ~ 300MBps or more...after a few hours or overnight, we see a drop to 15-20MBps until reboot (then its back to normal).&nbsp; How do I read the logs to figure out the problem or where else should I start?&nbsp; I was on hold for hours last week and the "next level" or level 2 tech was supposed to call back (they did not).&nbsp; This week, I called back as did my wife for hours and we just kept getting a new level 1 tech person who could not think past the prescribed script diagnostics.&nbsp; Can anybody help before I pull out my hair and take this back to best buy?? lol....seriously, any suggestions?

plemans · Answer

what modem is it connected to?&nbsp;When the speed is dropping, are you connected to 2.4ghz or 5ghz?&nbsp;does wired speeds drop as well or just wireless?

philc11 · Answer

Cable modem model cm1200 connected to the AX6600 (RAX70) wireless router . Wireless speed on both 2.4 and 5 are slow after a period and I cannot directly connect to either the model or router (plugging in an ethernet cable does not work once the speed decreases).

plemans · Answer

Are you using wan port aggregation between the RAX and the CM1200?

philc11 · Answer

I am not sure....the Ethernet Port Aggregation is Enabled (LACP-IEEE 802.3ad) (Port 1 &amp; 2) but the status is "Ethernet Port Aggregation Status:&nbsp;Inactive" .&nbsp; All of this is from the CM1200 http://192.168.100.1 access.&nbsp; The router http://192.168.1.1 controls showWAN Preference&nbsp;&nbsp;&nbsp;WAN aggregation (1 Gbps + 1 Gbps)

plemans · Answer

Disable wan port aggregation on both the router and the modem.&nbsp;The cm1200's port aggregation seemed like it always had issues. its only really a benefit if you have greater than gig service.&nbsp;Once disabled, reboot the modem and the router. Just have the 1 connection from cm1200 to the router. (port 1 on cm1200).Don't plug anything else into the cm1200 .

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rax70 internet speed decreases overnight until reboot

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