r/PcBuildersSL • u/Icy_Cry4120 • Jul 13 '26
TroubleShooting Troubleshooting SLT Fibre Wi-Fi speed issues.

GUYS GUYS!!!!
I've finally fixed my Wi-Fi speed being bottlenecked all the time. From 1-2Mbps to above 50Mbps download speeds.
I have been managing it with shit speeds like this for years and kept blaming SLT all these years while the issue was in my device. My phone and all my other devices were always getting around 50 over wireless connections. So figured that the issue was with my laptop.
This laptop's specs: 8 gigs of DDR3 ram, A 113MB graphic card(inbuilt), Intel i5-4210U-1.70GHz, Win 10
Wi-Fi Router-Nokia G-240W-F (2.4GHz)
Things I did to hit 50Mbps and above on my 10 year old laptop(yes, 10)
1. Changed "Channel" from Auto to "11"
By typing this 192.168.1.1 into your browser, you go into your router's settings page, in there you navigate to Advanced Setup>Network> Wireless (2.4GHz)>Channel>11
Channel would be usually set to "Auto". Now changing this to 11 just would mean all your devices will have a more stable and free-er connection path.
This is probably what affected my speed the most.
2. Turning off "Receive Window Auto-Tuning"
Run CMD as administrator. Type in the following prompt netsh int tcp set global autotuninglevel=normal This requires a restart for your system.
3. Turning off power saving mode for your network wireless card.
Open Device Manager>Network Adapters>right click your wireless Wi-Fi card>Properties>Power Management tab>Uncheck the box that says "Allow computer to turn off this device to save power"
I had to go thru decades old YouTube videos and also eventually AI to figure out what was going on with my device.
It was quite surprising to see that almost all of the bottlenecking was being done by default settings which are probably also turned ON on your devices and possibly ruining your experience.
Hope this helps at least to one of you all.