This is my first post... I've been looking everywhere for answers and found this site which seems to be on the
more serious side.
I have been going crazy trying to figure out whose problem this is, mine or my ISP.
I have Optimum's Triple Play, TV-Internet-Phone. For a couple of months I had been experiencing a problem where my Internet & Phone
will go dead at random times and recover between 1 – 4 minutes.
I went to the Optimum Store in my town and swapped out their old modem, router, and splitter for the latest and the problem has not gone away.
In the normal configuration:
Optimum Cable into the house into a two-way (2) splitter
Splitter Output 1 connects to Optimum Cable Box
Splitter Output 2 connects to ARRIS Cable Modem ( Optimum provided ARRIS TM1602)
ARRIS Cable Modem connects to AT&T Wireless Phone Set
ARRIS Cable Modem connects to DLINK Wireless Router (Optimum provided DLINK DIR868L )
Two (2) PCs are connected by wired connection to DLINK Wireless Router hard wire ports
DLINK Wireless Router connects to several wireless devices: Cellphone, ChromeCast, Firestick, IP Security Camera,

I tried removing the splitter and connected the Optimum Cable directly to the cable modem so as not to use any of the past old coax.
For this I purchased a 100 foot quad shielded internet / cable coax.
Direct configuration:
Optimum Cable into the house into a female-to-female barrel connecting a factory manufactured
100' coax connecting directly to ARRIS Cable Modem ( No Splitter ) ( Not using old installed coax)
ARRIS Cable Modem connects to AT&T Wireless Phone Set
ARRIS Cable Modem connects to DLINK Wireless Router (Optimum provided )
Two (2) PCs are connected by wired connection to DLINK Wireless Router hard wire ports
DLINK Wireless Router connects to several wireless devices: Cellphone, ChromeCast, Firestick, IP Security Camera.
THE PROBLEM STILL HASN'T BEEN FIXED... HELP!!!
This is the Status with the outside cable run directly to the modem no splitter

Thanx so much for any help offered.