Cable Internet going in and out - mostly out. Help Diagnosing?

So my Northland cable internet started dropping out 3 days ago. Northland says they cant get out here until Wed-Thur of next week, so I'm trying to figure this out myself as almost everything we got for my youngest son for Christmas depends on having the internet. =-O

The cable line runs straight from the street pole (there's a inline splitter on the pole) via 50ft of coaxial to my houses wiring panel outside. There's one line in to the house. From that line it goes 20ft to my modem.

Now. When it first went out I had a splitter before the modem (from the wall in our house). I removed that splitter. Reset the SurfBoard modem and the internet connected. Was on all night. Woke up the next morning. No connection.

Took the modem outside and hooked directly to the line coming from the street pole. Same thing. No connection.

I took the modem up to the local Northland Office yesterday, they replaced the SurfBoard with a Arris Gateway. Came home. Hooked it up. The Arris modem connected right from the start. Worked all night. Had great speeds etc. Woke up this morning. No connection again..

I've power cycled the modem etc. Still no connection. This is whats in the modem error log.

1/1/1970 0:41 82000900 5 B-INIT-RNG Failure - Retries exceeded;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 0:41 82000200 3 No Ranging Response received - T3 time-out;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 0:44 82000900 5 B-INIT-RNG Failure - Retries exceeded;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 0:45 82000200 3 No Ranging Response received - T3 time-out;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 0:48 82000900 5 B-INIT-RNG Failure - Retries exceeded;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 0:48 82000200 3 No Ranging Response received - T3 time-out;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 0:50 82000900 5 B-INIT-RNG Failure - Retries exceeded;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 0:51 82000200 3 No Ranging Response received - T3 time-out;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 0:54 82000900 5 B-INIT-RNG Failure - Retries exceeded;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 0:54 82000200 3 No Ranging Response received - T3 time-out;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 0:57 82000900 5 B-INIT-RNG Failure - Retries exceeded;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 0:57 82000200 3 No Ranging Response received - T3 time-out;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 0:59 82000900 5 B-INIT-RNG Failure - Retries exceeded;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 0:59 82000200 3 No Ranging Response received - T3 time-out;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 1:02 82000900 5 B-INIT-RNG Failure - Retries exceeded;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 1:03 82000200 3 No Ranging Response received - T3 time-out;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 1:06 82000900 5 B-INIT-RNG Failure - Retries exceeded;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 1:06 82000200 3 No Ranging Response received - T3 time-out;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 0:03 82000900 5 B-INIT-RNG Failure - Retries exceeded;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

1/1/1970 0:03 82000200 3 No Ranging Response received - T3 time-out;CM-MAC=38:70:0c:66:de:9f;CMTS-MAC=00:01:5c:33:b6:0e;CM-QOS=1.1;CM-VER=3.0;

This is the modem connection page

RF Parameters Downstream DCID Freq Power SNR Modulation Octets Correcteds Uncorrectables

Downstream 1 4 123.00 MHz 5.10 dBmV 40.37 dB 256QAM 170392 287 853

Upstream UCID Freq Power Channel Type Symbol Rate Modulation Upstream 1 4 23.00 MHz ---- ---- ---- ----

Status

System Uptime: 0 d: 0 h: 09 m

Computers Detected: staticCPE(1), dynamicCPE(0)

CM Status: DS_TOPOLOGY_RESOLUTION_IN_PROGRESS

Time and Date: Thu 1970-01-01 00:09:52

Now before this started there was a guy going pole to pole on our street installing what looked like splitters or something. Not real sure. We just noticed he would stop at every pole, hop in his bucket, spend 5 minutes screwing something onto the pole then move on to the next. Possible related?

What I'm not understanding is when I removed the splitter on the Surfboard modem. I got connection. When I changed modems. I got connection.

Honestly seems like a issue on Northlands side of things. I told them I had the same issue when I hooked the modem directly to the cable outside of my house. They still insisted it was a issue on my end..