Unexpectedly slow up/down speeds when moving modem & router

Verodoxys

Reputable
Apr 22, 2014
52
0
4,630
Hi guys,

We've lived in our house for only a few years, and the owners prior to us had cable run into every room. The room where I do my work in was an addition that was put on at some point, but still has cable. Our modem and router are currently in our 'office' alongside 2 other PCs (only one of which is used frequently). I've used WiFi for my desktop since we moved here as it'd be a huge hassle to run an Ethernet cable from there to the office, and as such my speeds are significantly worse than everywhere else in the house (office PC has 90/35, my PC has 50/5-15 (it fluctuates)).

I tried moving the modem and router to my room while using WiFi on our other computers. Speeds were hurt all around - my PC with its now-wired connect was only managing 10-15 down, <1 up, and all other devices were doing around that as well. Even just connecting my PC directly to the modem did not help. I moved the modem and router back and speeds went back to normal.

I'll be the first to say I don't know much about Internet, modems, routers etc, so I have no idea what to do. Is it possible that my room - which was built later than the rest of the house - has its cable just split from the other rooms on the second floor rather than directly connected? I apologize, I'm really no networking wiz.

Thank you!
 

Ralston18

Titan
Moderator
Yes. I think there is a pretty good possibility that, when the addition was added , that the nearest coax cable end just had a splitter attached to serve its original endpoint and then the addiion. Maybe even a three way split.

It could be difficult but the process I would take is to try to trace out the coax wiring and find all of the splitters. Especially if the splitters are "hidden" in crawl spaces, attics, or even inside walls.

The physical path could be the problem or maybe the splitter(s) to the addition have degraded due to moisture, exposure, etc.. Worked okay originally for TV but now too degraded for data.

See what you can find. A simple corroded splitter or associated connection could be the problem. Newer splitters do not seem to hold up as long as some of the originals. I generally keep a couple splitters handy and always ask any ISP techs in the neighborhood for an extra one or two to replace my outside connectors.

A bad coax cable (wear, rodents chewing it, moisture, corrosion, etc.) could be another problem not as easy to solve.

Map it out as best you can. In the process you may be able to figure out a way to re-route things as well.
 

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