Hi, not an IT expert here, just want to ask I have 2.4GHz WiFI and 5GHz WiFI, but everytime I connect to the 5GHz WiFI I cannot load anything, and only 2.4GHz one work, any ideas to solve this.

Thanks.

What is the Device that connect?
What is the place you connect to it?
Cafe?
I hope u r not here for Thread count

Google up "2.4ghz vs 5ghz wifi"
You might find your answer there

your device and modem too far to connect 5ghz, 2.4ghz can travel longer distance but if you live in apartment with a lot of wifi interference, your line gonna be serow

It's my home WiFI, any device that connects to it is the same, works with 2.4 but not the 5 one.

Dear TS,

let me share what I know about 5Ghz wifi, others /k also can share share
Sharing is caring.

I'm using ASUS RT-AX88U almoust (1.9K +++ few years back.)

1) not all wifi device are compatible to new 5Ghz protocol, (especially some older device)
so some new device also only support 2.4G, please refer to their manual.
2) my router 5G also giving problem gila-gila one. After power on, 5Ghz work fine, after 1 week ++++, 5Ghz fuck up. ( I dunno why)
after I power off and on again, 5Ghz work fine again.
so to resolve this I set timing to off and on 5Ghz (act like a reset). (refer to photo below.)
now everything work like what I want.


SET TIME



Difference router lain interface. refer to your router manual or provider. (don't ask me where to find set timer, don't be lazy to search.)

This post has been edited by empstar2: May 4 2025, 10:22 PM

Check if you have set data Quota on your 5Ghz?

What would help is you posting some screenshots of your router's wifi config here

no quota

the problem is it won't connect and even after connect no internet for 5Ghz, after reset, (on-off-on) all working fine.

Yes

Me too ... Certain games cant load on 5G, on 2.4G smooth saja....

My Sony TV not working with 5Ghz, No Internet connection at all. No choice but to let it connect to 2.4Ghz.

This post has been edited by nebula87: May 4 2025, 11:26 PM

Have you try changing the 5ghz wifi channel ?

Some devices will only work on 2.4Ghz if stated in the operating manual. Check the device specs.

Unless you need to specifically connect on 5Ghz, please feel free to disable it completely and rely on 2.4Ghz alone. At times, 5Ghz doesn't go well with certain devices i.e. smart gateways, smart switches etc.

Do you have a fan cooling your router?

2.4ghz wi-fi usually gives better coverage, especially when there are walls or some distance between your device and the router.

5ghz wi-fi is great for higher speeds and less interference, but it works best when your device is in the same room as the router.

is this test done in front of the Router like 5 feet away ??

possible issues.... 5g settings need optimize, OR router 5g died, i suspect this !


This post has been edited by Momo33: May 5 2025, 03:22 PM

TS, test another device (phone, tablet, laptop) see if 5Ghz work. If 5Ghz work, means your current device wifi kaput or not compatible.

This post has been edited by CPURanger: May 5 2025, 10:15 AM

the forum sub over here have technical sifus that may be able to help
https://forum.lowyat.net/NetworksandBroadband


a good app i find for troubleshoot wifi is wifiman on android, assuming ur client device is android. because then u can roam about ur home and check which has the best signal and throughput.

like others pointed out, even if u get the very latest wifi 7 router/ap, doesnt necessarily mean u can get those top speeds. its also very dependent on your client device wifi capability. maybe ur client device is old and stuck on an older wifi standard.

In that situation, if u got many of those old clients, i think a wifi 6e router is more than enough, because it's cheaper a wifi 7 router/ap last i checked.

then u got dual band, triband, quad band.... the later the most expensive. tri band is usually good enough. there is a whole article here that goes into that
https://dongknows.com/dual-band-vs-tri-band...i-fi-bandwidth/


there is simply just a lot to learn. if u check out dongknows blog he has a lot of articles that enlightens u on these things for wifi networking.


for my own setup, i have a dedicated pfsense router. my wifi is a separate access point which is a tplink eap-773 wifi 7. but for newbie like u, just getting an all in one router/wifi ap combo is ok. Just i rather have the feature of pfsense e.g. pfblocker which is why i went that route instead.

If u want to have multiple ap around the home, tplink has a good easy to configure mesh ap that comes in packs of 1-3 satelite nodes. Asus they have their AI mesh. if you search youtube for pendakwah teknologi, he explains the mesh wifi setup builds. just take note, each satelite note has a power consumption. i get by with 1 wifi ap, so depends on how big is your home for full wifi coverage to have good signal for the entire place.

also check youtube for useful info



This post has been edited by Moogle Stiltzkin: May 5 2025, 02:07 PM