2.4 Ghz devices not connecting, can someone please help? As support has been appalling from Vodafone

[suksanger]

About 3.5 weeks ago whilst away from my home, my router has stopped connecting to the 2.4 Ghz devices.  This is a particular issue with my ring door bell (including the Chime), the door bell is no further than 6-7ft away from the router albeit the other side of a wall.  The other devices are my kindle fire tablet which also dont support the 5Ghz signal.  I do get a weak signal if i am within 3-4 ft of the router.  Can anyone offer a solution?

I have been calling Vodafone every third day and the ritual is the same.  Reset router, Split or unsplit the signal, i now have a static IP address, wifi doctor is then run for 24hours .  After 24 hours i still non the wiser and call in again to go through it all over again.  Im sure i have a problem with the router but i cant understand why they wont send me a new one?  They say from there end it looks working fine.  Does any one have any ideas on how to resolve

[Jayach]

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@56Lad wrote:

I have seen theories re. channel 13 but my devices will see channel 13 (tested it on another router).  Channels 12/13 are US standard.  UK standard is only supposed to go to 11 (and you should only use 1, 6 or 11).

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Actually, it's the other way round. US 1-11 UK (and Europe) 1-13

[56Lad]

After hours of persistence, finally got the vodafone tier 1 numpties to conclude my router was faulty and got a new router today.

Works fine on both bands.  It has pretty poor speeds on 2.4 GHZ (65 mbps) which is lower than my fttc speed (nominal 80)l mbps bit teal world 74 mbps).

5G is much faster and well above ISP speeds.  I tend to transfer files from pc to mobile using wifi so get a fairly respectable transfer rate of over 250 mbps on LAN.

[CrimsonLiar]

65Mbps on a single 20MHz stream 2.4GHz WiFi 4 or 5 connection is quite normal - it's just how that band plays!  WiFi 6 on the same band pretty much doubles the device bandwidth.

[56Lad]

thanks