Reddit reviews 100ft Cat5e Outdoor Waterproof Ethernet Cable Direct Burial Shielded (Pure Copper)

Yea, running ethernet would probably be the overall better solution.

You can't just split the coax to the modem/router and expect it to work. Your ISP gives you one, usually dynamic, IP address that authenticates to the local node with the credentials of the modem.

If you add another modem to the equation, I doubt it would authenticate unless you set that up with your ISP beforehand.

Get some bulk water-proof Cat5e and just run that cable to a switch in the pool house.

The way to solve problems like this is through process of elimination.

What happens when you plug the Ethernet cable directly into your laptop instead of your router?

What happens when you use your laptop near the pool. Do you get the 100Mb speeds?

Can you test plugging your laptop directly into his modem with a shorter cable?

Can you confirm that he is actually getting the speeds he thinks he is?

If you still get slow speeds it's a problem with your laptop. If your speeds improve then it's a problem with the cat5 cable.

Regardless, it would be a good idea to gan outdoor rated Ethernet cable like this one:

100ft Cat5e Outdoor Waterproof Ethernet Cable Direct Burial 100 ft (Shielded & Grounded) https://www.amazon.com/dp/B001B6DM52/ref=cm_sw_r_cp_apa_ablmybKNWRTQ7

Because any normal cable will start to deteriorate pretty quickly.

well i need to make sure theres enough clearance for any traffic, its a personal driveway but still id hate for someone to run into it and put tons of force destroy the cable, or equipment. as far as cable, i was thinking of using something like this. https://www.amazon.com/Outdoor-Waterproof-Ethernet-Direct-Shielded/dp/B001B6DM52/ref=sr_1_2?ie=UTF8&qid=1497205103&sr=8-2&keywords=outdoor+ethernet the distance i have to do is 30ft, and if it was buried it then id use at max like 35ft of cable, but if im stringing it across the 2 buildings then id probably go for a longer 100ft and if im at it and it's cheap enough run 2 at the same time. plus i've never used fiber before so im a bit lost.

You can run Cat5e outside for a little bit without issue. If you are going too far you might want to consider getting some conduit. I'm not sure how far you're talking but I'm guessing you're not putting it too far away. I'm sure you can either find a existing hole near where you want to put it, or you can drill through the wall. If you REALLY don't want to do it you can get it appraised from an electrician or something.
https://www.amazon.com/Outdoor-Waterproof-Ethernet-Direct-Shielded/dp/B001B6DM52/ref=sr_1_6?s=electronics&ie=UTF8&qid=1510721635&sr=1-6&keywords=outdoor+cat5

This cable is meant for the outside: https://www.amazon.com/Outdoor-Waterproof-Ethernet-Direct-Shielded/dp/B001B6DM52?th=1

You can run the cable on the outside of your house if you want.

If I was going to do this and didn't know how to terminate Ethernet cables and didn't have a big budget, I would get one of these plus two of these.

Put one surge protector at each end of the outdoor cable, and make sure the bolt hole in each surge protector is connected to an electrical ground with a good copper cable.

But it depends if you need something that is going to last a few months or if you need it to last multiple years.