Windows 10: Drop in Internet Speeds on 2.4 GHZ Band.

To,Microsoft CommunityHey Friend, this is Gavin Mathos & using Windows 11 Version: 22H2 OS.I am using Fiber-To-Home FTTH Home Broadband Internet Connection. I get proper Faster Internet Speed as per ISP Tariff Plan's when I am connected to 5 GHZ Band, but when I switch to 2.4 GHZ Band Internet Speed drops drastically. Why so???What can be the reason behind drop in Internet Speed on 2.4 GHZ Band, while proper Faster Faster Internet Speed on 5 GHZ Band. Is this issue of Dual Band ONT Wi-Fi Router / Customer End or is it from ISP side. Please check & let me know. Thanks...

:)

 

Sudden Internet Speed Drop


Hi there

Check your router (or your connection) hasn't dropped back from 5GHZ band to 2.5GHZ band -- on the 2.5GHZ band especially if there are a lot of people on the same channel your speed will drop.

If you are using LAN / direct connection check also quality of cable --degraded LAN cable can cause horrendous drop in speeds.

I've given up direct connection via LAN --am using Wifi-Internet via ethernet-->wifi bridge on an older router --still getting >250 mib/s -- however if I switched to 2.5 Ghz band this would drop to around 55 Mib/s -- BIG difference.

Note the ethernet-->wifi bridge is a great idea if you don't want LAN stuff all over the place --on 5GHZ with current ac technology max speed is 433 mib/s - so you don't lose out using this --even if you have a Gb LAN adapter connection you won't get that through the average ISP (at least not yet). You can even transfer quite large files on local LAN quite decently fast too with that typeof connection.

My connection is fibre -- all the way -- no copper / older adsl type technology anywhere - and here there isn't that much contention (around 15% of the ENTIRE population is away in France currently watching the Football !!!!!) so the difference between 2.5GHZ and 5GHZ bands is a good test as a lot of people are away not causing contention on the 2.5 GHZ band.

If you DON'T use wifi and you aren't getting the speed you are paying for - bring back the technicians to recheck your signals.

The Wifi broadband speed test works on android phone (and probably iPhones) so try that as another check too. That should confirm whether it's a Windows problem (which I doubt) or the problem lies elsewhere.

Finally check your service contract -- sometimes "Unlimited usage" doesn't quite mean that - you could be getting capped. There in tiny print (probably on page 174 of the service contract !!) might be a "fair usage" clause somewhere -- although exactly what that would mean in a Court I don't know -- would streaming or downloading and watching 3 or 4 ultra 4K HD movies which eat up several tens of GB's each be "unreasonable" !!!!

Cheers
jimbo

 

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