Help With My Internet Issues

[DarkWatt]

I've been having a super weird Issue with my Internet lately.
It all started one day I was using my internet as usual and then all of sudden it became super super slow, I own a 20Mbps plan with 26ms and as usual I should be getting the 1/7 of my download speed that is around 1.9-2.1mbps as upload speed, but this is where it gets weird I tried to speedtest as usual and it kept saying my download speed was 0.5-1.5 mbps but my upload keeps showing as it was normal at 2.1 mbps, now from all that I tried everything I googled and nothing, even called my ISP and they just said that they gonna tell their technicians and if there was something wrong they would send someone to my house until I got the bright idea of switching my ethernet port in the back of my motherboard and see if it would work normally and after I did it, it finally worked everything came back to normal so I didnt put too much attention on it back then until my motherboard fried... (F to pay respect) and now I'm using my cheap laptop as a desktop with ethernet and everything worked perfectly until yesterday night that same thing started to happen while I was watching twitch and so far I've tried everything from resetting the router multiple times, to see if my drivers are updated and even trying to connect only via Wifi and nothing same issue, Now there something even more weird sometimes the internet starts working fine as usual shows the normal Internet speeds and mostly of the websites work normally and I'm saying mostly because seems like Twitch doesnt work, the videos just keep going from 360 in auto to 160p and then it just keeps buffering and its only twitch, because youtube stream and youtube videos and even downloading anything else it just works as normal, So can someone help me or give me some ideas I havent try yet? 

[Hiitchy]

Who's your ISP, and what is the exact package?

 

Is it Coax (cable) or ADSL/ADSL2/ADSL2+/VDSL(2+)?

 

What are the specs associated with the computer in question where this issue is happening?

 

What other hardware do you have connected to the network?

 

 

[DarkWatt]

8 minutes ago, Hiitchy said:

Who's your ISP, and what is the exact package?

 

Is it Coax (cable) or ADSL/ADSL2/ADSL2+/VDSL(2+)?

 

What are the specs associated with the computer in question where this issue is happening?

 

What other hardware do you have connected to the network?

 

 

Telbo Bonaire, 20Mbps only internet
its ADSL/ADSL2/ADSL2+/VDSL(2+)
The first time specs: Ga z-170 Gaming 6 mobo, I7 6700k, 16gb Ram, gtx 1060
Second/current time Latitude e5430
If you mean devices and things connected to the Wifi, A bunch of things but never felt like its the devices bottlenecking the internet that has never happened I have a good bandwidth, In terms of peripherals I have a wifi extender

[Hiitchy]

The more devices you have connecting to the internet from your router, the more of a bottleneck you create. As for your motherboard somehow dying... I'd suggest you exchange your DSL modem for a new one and see if that helps you with anything.