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Months of Internet dropping. Same after change to leased Xfinity modem

Frequent Visitor

Months of Internet dropping. Same after change to leased Xfinity modem

Due to multiple drops, I upgraded to 1Gig with an Arris SB8200 in October as well as having a new line run from the street to my modem.  It seemed better for a while, but I still experienced random drops. 

After multiple tech calls over Jan and Feb, I was still getting daily T3 and T4 errors and modem reset's which would cause our drops. The last Xfinity rep installed the Xfinity modem and things worked well for a day or two. (More on that later) In order to get a warranty claim from Arris, I had to reprovision the Arris and troubleshoot. The Arris tech said my upstream levels were low.

 

Channel Channel ID Lock Status US Channel Type Frequency Width Power
1 67 Locked SC-QAM Upstream 30100000 Hz 6400000 Hz 43.0 dBmV
2 66 Locked SC-QAM Upstream 23700000 Hz 6400000 Hz 42.0 dBmV
3 68 Locked SC-QAM Upstream 36500000 Hz 6400000 Hz 44.0 dBmV

Arris said they should be 45-51 bDmV  With this reference: 

http://arris.force.com/consumers/articles/General_FAQs/SB8200-Cable-Signal-Levels

I then get to second level Xfinity (Troy) who conferences with Arris and says Xfinity modem is also made by Arris and is not having issues so it must be my owned Arris modem having the problem and they agree to warranty exchange the Arris.

 

Since that time (two days ago) the Xfinity modem has had two service interuptions.  I have 14 pages of event logs in the 4 days since I have had the Xfinity modem hooked up!!!

 

The first loss of service started at 7:37 and continued until the modem was unplugged.. Online reset did not help

DHCPv4[18282]: 72001008-DHCPv4 - No Offer or Ack Received 1 times 2019/3/06 07:37:45 Critical
DHCPv4[18282]: 72001008-DHCPv4 - No Offer or Ack Received 131 times 2019/3/06 08:27:01 Critical

 

 I also get hourly errors below

ti_dhcp6c[3587]: 72001011-DHCPv6 - Missing Required Option 82 2019/3/07 18:20:58 Critical
ti_dhcp6c[3587]: 72001011-DHCPv6 - Missing Required Option 24 2019/3/07 18:20:58 Critical

 

Here is my signal.

Downstream
Channel Bonding Value
Index
28
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
21
22
23
24
25
26
27
29
30
31
32
 
Lock Status
Locked
NotLocked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Frequency
633000000
 
453000000
459000000
465000000
471000000
477000000
483000000
489000000
495000000
519000000
525000000
531000000
537000000
543000000
549000000
555000000
561000000
567000000
573000000
579000000
591000000
597000000
603000000
609000000
615000000
621000000
627000000
639000000
645000000
651000000
657000000
605600000
SNR
38.983261
 
40.946209
40.946209
40.946209
40.366287
40.946209
40.946209
40.946209
40.946209
40.366287
40.366287
40.366287
40.366287
40.946209
40.366287
40.366287
40.366287
40.366287
40.366287
40.366287
40.366287
40.366287
38.983261
38.983261
38.983261
38.605377
38.605377
38.605377
37.636276
37.355988
37.636276
NA
Power Level
-3.900002
 
1.500000
0.700001
1.400002
1.000000
0.799999
0.900002
0.299999
0.299999
-0.500000
-0.900002
-0.500000
-1.000000
-1.099998
-0.700001
-1.500000
-1.200001
-1.400002
-2.000000
-1.299999
-2.000000
-1.900002
-2.500000
-2.700001
-3.099998
-3.500000
-3.299999
-4.000000
-4.099998
-5.000000
-5.099998
NA
Modulation
QAM256
UNSUPPORTED
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
OFDM
Upstream
Channel Bonding Value
Index
1
2
3
Lock Status
ACTIVE
ACTIVE
ACTIVE
Frequency
23700000
36500000
30100000
Symbol Rate
5120 KSym/sec
5120 KSym/sec
5120 KSym/sec
Power Level
40.520599
42.770599
41.770599
Modulation
64QAM
64QAM
64QAM
Channel Type
US_TYPE_STDMA
US_TYPE_STDMA
US_TYPE_STDMA
 
Any help would be appreciated.
Frequent Visitor

Re: Months of Internet dropping. Same after change to leased Xfinity modem

Updated errors

 

ti_dhcp6c[3587]: 72001009-DHCPv6 - No Advertise or Reply Received 1 times 2019/3/06 18:20:51 Critical
ti_dhcp6c[3587]: 72001011-DHCPv6 - Missing Required Option 82 2019/3/06 17:20:49 Critical
ti_dhcp6c[3587]: 72001011-DHCPv6 - Missing Required Option 24 2019/3/06 17:20:49 Critical
ti_dhcp6c[3587]: 72001004-DHCPv6 Provision - 0 Retries Attempted with Last attempt at Wed Mar 6 22:20:48 2019 2019/3/06 17:20:49 Critical
ti_dhcp6c[3587]: 72001015-DHCPv6 Failed - No Prefix Available 2019/3/06 17:20:48 Critical
ti_dhcp6c[3587]: 72001014-DHCPv6 Failed - No Address Available 2019/3/06 17:20:48 Critical

 

 

Getting the option 24 and 82 DHCPv6 errors every hour on the hour. Is this a DHCP conflict with my ubiquiti router?