Media Subtype: 100baseTX even though my cable should be Gigabit.

QuantumLeaper

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Aug 13, 2020
Messages
18
It's telling me my Media Subtype is 100baseTX, and I know my cables are CAT6 (which I just changed), which I thought it should run at 1000baseTX. The router is also Gigabit...
Does anyone know what I could be doing wrong?
BTW the computer said it was Gigabit Networking, I even found the old webpage for the Motherboard, just to make sure.
I really want to get something faster than 10MB per second transfer.

Any help would be nice...
 

c77dk

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Nov 27, 2019
Messages
467
Which NIC are you using? And what is it connected to?
 

QuantumLeaper

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Joined
Aug 13, 2020
Messages
18
Which NIC are you using? And what is it connected to?
Whatever on the Motherboard, since I couldn't put in a NIC card since the heatsink on the video card overhangs the other slot, I might be able to fit one in but it would be really close. Every product listing for the M11AD by ASUS (TrueNAS doesn't tell me, at least I couldn't find it) says it Gigabit. In fact, I haven't needed a separate NIC card in quite a while. It connected to my AC1200 Wireless Dual Band Router (model: Archer A5) from there to my iBuyPower (Realtec PCI GbE) computer. ALL of them stated they had Gigabit. I haven't seen any computer in a long time that hasn't had Gigabit.
The only networking cable I don't know is the one from the Cable modem to my router since I didn't install that, the cable company did, which shouldn't affect the speed of my NAS.

Setup is...
M11AD (model) to AC1200 Router to B450M-IBW (motherboard)

Any suggestion to try or a solution to the problem would be great.
 

c77dk

Patron
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Nov 27, 2019
Messages
467
looks like it's a Realtek NIC - which usually isn't the best (mildly put). Best advice would be to throw in a Intel NIC instead.
 

QuantumLeaper

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Aug 13, 2020
Messages
18
looks like it's a Realtek NIC - which usually isn't the best (mildly put). Best advice would be to throw in a Intel NIC instead.

I guess I will have to wait a couple of months to do that since I have one of my HDs in the NAS I have to replace first. If I do that, I think I may put NICs in both of the computers. The only problem is fitting the NAS since I don't have a lot of room because of the heatsink on the video card. I try to limit my hardware purchases to one per month.

Thanks for the help, even though it really didn't fix my problem.

Just checked an Intel EXPI9301CTBLK 10/100/1000Mbps PCI-Express Network Adapter would be fine, right.
 

Arwen

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May 17, 2014
Messages
3,600
I have personally seen bent pins inside a chassis 8P8C connector, (aka RJ-45). In that old case, it was 100Mbps and it could only receive data, could not transmit. Turns out one or both the transmit lines were bent. Easy temporary fix, (we had a support contract on that workstation). After the fix, I told the user don't touch it until it's been replaced.

In your case, it's possible you have a bad cable, or chassis connector at either end. Simply unplug and look to make sure all the lines are, well, lined up and springy.

If you have a cable tester you can try that on the cable. Or try the cable in another place that uses Gigabit Ethernet.

Last, while 10/100Mbps uses 2 pairs of the 4 pairs, Gigabit uses all 4 pairs, and each pair is bi-directional. Thus, if one of the Gigabit only pairs is non-functional, speed will drop to 100Mbps.

I once had that last problem on a wall connector. Since I was using another one as 10/100Mbps, easy enough fix for me to simply swap wiring, and not fix the problem in the wall plate.
 
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