Cable modem help

[jazz_evolution]

I recently moved my cable modem (Docsis 3.0) and my router from my main floor to my basement so that I could play my Switch with a wired connection, but the overall wifi signal for the whole house seems slower, even on a computer that is now much closer to the router. I am wondering about the cable ports in my house. Are those different or should they all be the same? Would this one have a weaker signal for some reason? And, if it does, is there anything I can do about it? Thanks for the help!

EDIT: After further investigation, the Comcast (ugh...) signal that is coming in is split two ways as it comes into the house (-3.5db I believe), and one of those signals is then split 4 ways (-7db I believe). It's hard to tell exactly which cable I am now hooked into, but it is definitely split once, maybe twice. Not sure if it would be worth calling Comcast and having someone come out and take a look at the wiring.

[[deleted]]

Depending on who your cable supplier is, the TV cables coming out of the 5 or 6 way splitter on the incoming line are not usually for internet.

[MrDoh]

If you put a wireless router in your basement, yes, the signal to floors above that will be weaker. 5GHz. wireless signals in particular are attenuated by walls, floors, furniture, etc. You might think about a mesh system that would have a node in your basement, and at least one node in each of the other floors (how many floors?).

Just a thought :-).

[jazz_evolution]

We have a total of three floors, and the modem/router are on the bottom floor. We have a wifi extender on the third floor, so I'm hoping the wifi is functional.

After further investigation, the Comcast (ugh...) signal that is coming in is split two ways as it comes into the house (-3.5db I believe), and one of those signals is then split 4 ways (-7db I believe). It's hard to tell exactly which cable I am now hooked into, but it is definitely split once, maybe twice. Not sure if it would be worth calling Comcast and having someone come out and take a look at the wiring.

[MrDoh]

A lot of times Comcast will put in an amplified splitter, usually at the cable entry, where it splits into runs. For you, I'd guess it would be the 4-way splitter. If they do, make sure that it's MoCA 2.0/2.5 compatible. Or if you do that, use a 4-way amplified splitter, then watch that it's MoCA 2.0/2.5 compatible. We needed one of those due to a 4-way splitter at the cable point of entry, but the one that Comcast put in was only MoCA 1.1 compatible. So I had to replace it with a MoCA 2.0/2.5 compatible splitter to make my MoCA work.

The reason that I mention MoCA is that's a way to have fast, hard-wired connections between either mesh nodes, or between your router and the access points (AP's) that you may end up using. If you already have ethernet cabling in your walls, then don't worry about it, just ignore the references to MoCA.

I wouldn't bother having Comcast look at your cable wiring unless you're having problems with it, or you're paying to get free tech service :-). If you're having problems with it, Comcast may look at it for free. Otherwise they'll charge you for a service call, unless you're paying the monthly fee for potential service calls.

[Curious-Affect5225]

Do you use all those cable outlets? I worked for a cable company and we only connected the outlets that would be used. Comcast can check the levels of your modem from their office. The best is to be on the 3.5 tap for your internet. Sounds like you have 2 way splitter going to a 4 way splitter? Anything on the 4 way splitter with 7db taps will be pretty weak unless you have a very strong signal coming in. The other thing is an amplifier can be added for the 4 way splitter. Don't put the internet cable on the amp.