MBPS and mbps are not the same thing. B is bytes, b is bits. I don't know anyone who has 192 MBps connections unless the have a fiber optic line directly into the main trunk.
That speed [192] Mbps can be had with T1 connection and even higher.
It is MB as in Mega Bytes and Mbps for Megabits.
MB refers to capacity in terms of memory or storage while Megabits refer to data speed being transferred wirelessly.
But that’s so much for pedantry.
Now, back to the topic:
OK, let’s say you open [per OP] the PC to look at the MB (motherboard) . . . what would you expect to find to determine a faulty network card?
A network card (ethernet ) is a very simple component with no more than three [cheap] IC chips on it.
OP claims it’s Win 10 Desktop.
Windows 10 came out as a replacement for Windows NT and publicly distributed in 2015. It’s been used mostly as industrial use prior to 2015.
Between Win NT and Win 10 , there were many OS versions that came in between . . . ie. Millenium , Win 2000, Win 7 and Win 8.1 etc.
I went on special training on Microsoft Windows NT almost twenty five years ago when it was the OS favored by DoD.
It was basically written for industrial use.
It has been replaced many times since then. I’ve done a lot of work for the government.
The likelihood of the unit [network card] being bad is possible—but highly unlikely. I’ve never seen a card burned out. . . .not from a Windows 10.
It is not a
dinosaur as in really old.
I try not to make this comment sounds gospel because OP only
trusts his local tech
“unless my local tech says go for it” – and I understand.
It’s one’s prerogative to do anything he
thinks is right. It could be a simple bad ethernet cable or something else like loose card etc.
I’m just
doling out my two cents.
For anyone with marginal knowledge of
Computer Engineering—I would suggest get a new PC instead of “fighting fire” as suggested by other posts,
My suggestion:
If prepping for retirement, switch to UNIX (Linux) for hassle-free OS . . . it comes with excellent support, upgraded regularly. . . . and it’s
free.
It can do almost anything a
Micro-bloat Windows can do.
Good luck.
…………
.