[SOLVED] Internet stuck at 100/100mbits ?

[ANTFKBA]

So my roommates PC is stuck at 100/100 Link speed even tho we have gigabit internet, he bought a brand new cat6 cable but that did nothing either. My PC runs at 1000/1000 link speed and we have an Asus Rt-ac86u router. I'm connected to port 1 he is connected to port 3. We have in wall cabling with Ethernet outlets in our rooms we have tried using my cable but from where his PC is set up it's not long enough.

 

[Lutfij]

You can bring his system over to your end and see if he gains access to the higher speeds that you're getting. Speaking of which, what is the make and model of your roommates motherboard(assuming that he's not using a discrete LAN card and is operating off of the motherboard's onboard NIC)? What OS is he working with and what version is it, if he's on Windows 10? You can try and make sure that the BIOS on your room mates platform is up to date, that the drivers for the NIC are uninstalled and reinstalled manually(with the latest driver) in an elevated command, i.e, Right click installer>Run as Administrator, then see if his experience changes.

You can also try and make sure that the Asus router you have is not pending any firmware updates.

Please note that if his NIC is that from ages ago, then the speeds he's seeing is fine, i.e, it's a hardware limitation.

 

[ANTFKBA]

I'm working afternoon shift this week but i Will try that tomorrow, also he has an Asus strict z270f gaming Mobo if i remember correctly and he is using windows 10 64bit. We have tried installing drivers from Asus support website but doesn't do much, on speed and duplex setting auto-negotiation gives him 100/100 and with 1Gbit full duplex we get a "Ethernet cable damaged or not connected properly" error. It's hard to explain but in our router area we have this wall with a bunch of outlets (the end where our wall outlets connect to the router) and i used my cable to his outlet and connected it to Port 1 with the same results.

I have very basic knowledge with networking most of it from when I studied as en electrician but i remember how to make/install those wall outlets so I can maybe check if a wire is loose if it comes to that but i don't have one of those cable testers.

 

[bill001g]

A cable tester makes this a lot easier. A slightly loose wire is hard to see, sometimes it looks fine but has not fully cut through the plastic. If these wall jacks have keystones rather than a crimp on plug and a coupler it is easier. Using standard wire colors when it runs at 100 but not gigabit it is generally a issue with brown or blue pair. The green and orange ones are working correctly or it would not connect at any speed. You can generally pull these wires out 1 at a time trim the very end where it was crimped and try again. A punch down tool helps but a tiny screw driver will work being very careful to not press in the center of the pin and damage the metal contacts.

It almost has to be one of the ends. The wire itself is seldom damaged, maybe a rat eating it or a nail but it is very rare for wire to go bad.

 

[kanewolf]

I have very basic knowledge with networking most of it from when I studied as en electrician but i remember how to make/install those wall outlets so I can maybe check if a wire is loose if it comes to that but i don't have one of those cable testers.

If you have in-wall cabling, you really need to spend a few $$$ on a basic cable tester like this one -- https://www.amazon.com/Klein-VDV526-052-Scout-Junior-Tester/dp/B004CI9NRM
If you are going to re-terminate, then do both ends of the in-wall cabling.

 

[ANTFKBA]

If you have in-wall cabling, you really need to spend a few $$$ on a basic cable tester like this one -- https://www.amazon.com/Klein-VDV526-052-Scout-Junior-Tester/dp/B004CI9NRM
If you are going to re-terminate, then do both ends of the in-wall cabling.

Tomorrow I will set up his PC in my room and use my wall outlet, if that works is it safe to assume somethings wrong with the in wall cabling/outlet in his room?

 

[kanewolf]

Tomorrow I will set up his PC in my room and use my wall outlet, if that works is it safe to assume somethings wrong with the in wall cabling/outlet in his room?

If you have replaced any jumper cables on both ends of the in-wall cabling, then the most likely problem is the wall jacks.

 

[ANTFKBA]

I just tried his PC in my room and it is till stuck at 100/100 so seems like and issue with his computer? It's an Asus strix z270f gaming Mobo the Ethernet cards name is Intel(R) Ethernet Connection (2) I219-V dunno why the (2) is there, i have downloaded drivers for it from Asus support page but maybe i got the wrong one?

 

[ANTFKBA]

I tried setting speed and duplex to 1Gbit full duplex but then it refuses to connect, leaving it at auto gives me 100/100 i tried driver 22.9 and 26.3 from Intel's website and also Ethernet drivers from Asus website and still same problem, i did these tests today in my room using my cables so there is nothing wrong with the cables since i get the full 1000/1000 on my pc.

 

[kanewolf]

I just tried his PC in my room and it is till stuck at 100/100 so seems like and issue with his computer? It's an Asus strix z270f gaming Mobo the Ethernet cards name is Intel(R) Ethernet Connection (2) I219-V dunno why the (2) is there, i have downloaded drivers for it from Asus support page but maybe i got the wrong one?

The Intel 2.5Gb ethernet adapter has had some driver problems. I would start by getting the latest driver from the Intel webpage -- https://downloadcenter.intel.com/product/82186/Intel-Ethernet-Connection-I219-V

 

[ANTFKBA]

Network adapter driver for windows 10? That's the 26.3 driver i already tried and it didn't work.

 

[gggplaya]

I would say it's a defective motherboard at this point, I would call ASUS support.