Question ASUS RT-AX5400 Speed issues

[SirJacs]

I did a factory reset on my router because i was having speed issues. It fixed the problem for a few days but it came back and i really have no idea how to figure this out. I should be getting 400-430 mbps but im only getting 250 ish. It seems that others have had this problem with my particular router, but none of their fixes worked for me. What can i do to fix my slow speed issues because at the moment, im looking at buying a new router to fix it. Also i am doing these speed test on a wired connection, and i did try a speed test while connected directly to the modem, had full speed from the modem, so its a router issue. If you need more information, let me know.

 

[kanewolf]

I did a factory reset on my router because i was having speed issues. It fixed the problem for a few days but it came back and i really have no idea how to figure this out. I should be getting 400-430 mbps but im only getting 250 ish. It seems that others have had this problem with my particular router, but none of their fixes worked for me. What can i do to fix my slow speed issues because at the moment, im looking at buying a new router to fix it. Also i am doing these speed test on a wired connection, and i did try a speed test while connected directly to the modem, had full speed from the modem, so its a router issue. If you need more information, let me know.

What settings are you changing after the factory reset?
Does another fix it again?

 

[SirJacs]

What settings are you changing after the factory reset?
Does another fix it again?

After the reset, i didn't change anything, just logged my devices back into the network. I didn't try another reset, just because its a bit of a pain, but i believe it would yield the same results

 

[bill001g]

That is very strange since that router should be able to do 1gbit to internet. Even very cheap routers can do that.

Generally factory reset runs out of the box settings. All modern routers have a special hardware NAT feature that bypasses the CPU chip. Problem is most fancy features need the cpu to be able to process the packets. This requires you disable this hardware nat feature and you get results similar to what you see. It is not uncommon to get less than 300mbps when the hardware nat feature is not in use.

Common features that require this are parental control stuff, vpn, and firewall features. Your router has massive amounts of this garbage include "AI". You would think this stuff would all be disabled on the factory default but you never really know.

Many routers ship with a wifi feature called WPS enabled even though it is a massive secure exposure that can be cracked with a just a cell phone program. They do this because people are dumb and lazy.

Maybe they turn on other features that they know hurt performance and hope all the dumb users don't notice.

I would go in and try to disable any feature you do not think you need. Do them 1 at time just in case you break something worse.

 

[SirJacs]

That is very strange since that router should be able to do 1gbit to internet. Even very cheap routers can do that.

Generally factory reset runs out of the box settings. All modern routers have a special hardware NAT feature that bypasses the CPU chip. Problem is most fancy features need the cpu to be able to process the packets. This requires you disable this hardware nat feature and you get results similar to what you see. It is not uncommon to get less than 300mbps when the hardware nat feature is not in use.

Common features that require this are parental control stuff, vpn, and firewall features. Your router has massive amounts of this garbage include "AI". You would think this stuff would all be disabled on the factory default but you never really know.

Many routers ship with a wifi feature called WPS enabled even though it is a massive secure exposure that can be cracked with a just a cell phone program. They do this because people are dumb and lazy.

Maybe they turn on other features that they know hurt performance and hope all the dumb users don't notice.

I would go in and try to disable any feature you do not think you need. Do them 1 at time just in case you break something worse.

I looked into the nat on my routers webpage. It is enabled for all of the vpn options that the router provides, however i have all of the vpn's for it turned off. It was factory disabled for PPPoE Relay. It is enabled for PPTP, L2TP, IPSec, RTSP, H.323 and SIP. Not sure if having that enabled is gonna matter, considering those are off.

The parental controls are all turned off, i turned off the time scheduling manually.

The firewall has the defaults on, which seems to be firewall protection and IPV6 protection. The URL filter, Keyword filter and Network services filter are all disabled on it.

I also just now went into WPS and disabled that too, and after all of that, no improvement. Seems to just right up to the 25-270 mark now, where as before, it took a few seconds to hit that.

 

[kanewolf]

I looked into the nat on my routers webpage. It is enabled for all of the vpn options that the router provides, however i have all of the vpn's for it turned off. It was factory disabled for PPPoE Relay. It is enabled for PPTP, L2TP, IPSec, RTSP, H.323 and SIP. Not sure if having that enabled is gonna matter, considering those are off.

The parental controls are all turned off, i turned off the time scheduling manually.

The firewall has the defaults on, which seems to be firewall protection and IPV6 protection. The URL filter, Keyword filter and Network services filter are all disabled on it.

I also just now went into WPS and disabled that too, and after all of that, no improvement. Seems to just right up to the 25-270 mark now, where as before, it took a few seconds to hit that.

One thing that can hurt performance that nobody thinks of is logging. If you have logging of your connections or other things then that could be the problem.
The other thing is that many routers try to be "smart". They will lower your speedtest to allow other traffic (game traffic) through -- even if there is no game traffic happening. You might want to check if any QOS or "smart" features are enabled.

 

[SirJacs]

One thing that can hurt performance that nobody thinks of is logging. If you have logging of your connections or other things then that could be the problem.
The other thing is that many routers try to be "smart". They will lower your speedtest to allow other traffic (game traffic) through -- even if there is no game traffic happening. You might want to check if any QOS or "smart" features are enabled.

Well what do ya know, qos was eating it lol. Thanks man