There is an aerial cable that comes to this splitter (from the left) that splits out two cables. The one powering my modem is the one that’s damaged.
I’ve been having internet issues during the day for the last few days (I live in the northeast US, so very cold right now if that’s relevant). It’s only during the day. Internet speed is VERY slow when it’s connected (<10mbps download, <1 upload) and it is constantly disconnecting. But at nights internet is normal with no interruptions (160mbsp download, 10 upload). I had a tech scheduled to come out to fix the cable today but the guy never showed up (I could do it on my own but don’t fully trust myself with it) but it seems weird it’s only happening during the day. Is this actually the issue?
The other cable from the splitter goes nowhere, so is not an option. This is a rented house so there’s only so much I can do.
Couple things here. Like the others aside, water intrusion in the broken cable jacket is bad
But, why is the cable jacket (black part) broken in the first place? It's probably been outside a long time and the outer portion is brittle but also it appears to be stressed. The cable looks like it's pulled tightly instead of being secured in place with enough slack to keep tension off the connector
In other words, the cable was pulled so tight that over time slightly bumping it or wind battering it caused the jacket to break, and allowed water to intrude and degrade the cable from inside. At least that's my guess just from the limited info I see in this pic
So hopefully the replacement cable has some slack to it and doesn't break in that spot due to tension or stress.
You can buy some self adhering or Vulcanizing tape and wrap the connections to weatherproof the new connections after it's replaced