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Connectivity issues

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New Poster

Connectivity issues

I recently upgraded from 200 MBs to 1 GBs service.  To handle that speed I had to upgrade my modem so I purchased the ARRIS Group, Inc. SBG8300 which was recommended on the Xfinity site.  The service is now very unstable.  Sometimes good, sometimes not.  And the strange thing is that after I restart the modem it shows up on the xfinity page and Im able to connect and restart it for a bit of time.  But after a few hours the xfinity page says "We're having trouble finding a signal" so I cant remote restart it.  

I have been on with customer service (via chat) several times and they say they are refreshing the signal but it doesnt seem to be resolving.

 

Anyone else see this - any ideas?

 

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New Poster

Re: Connectivity issues

I checked and it seems all my signal levels are good but I do see the following in my modem logs - does it mean something?

 

Unerrored CodewordsCorrectable CodewordsUncorrectable Codewords

1830094
559030611
1830094
1830094
1830094
1830094
1830094
1830094
1830094
1830093
1830094
1830093
1830094
1830094
1830093
1830094
1830094
1830093
1830094
1830094
1830093
1830094
1830094
1830093
1830094
1830094
1830094
1830094
1830094
1830094
1830093
1830094
0
3735936685
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3735936685
0
0
0
Highlighted
Diamond Problem Solver

Re: Connectivity issues

You should post all your stats together upstream, downstream etc . What you think is good May not be

I am a Retired Official Comcast Employee
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New Poster

Re: Connectivity issues

Downstream

 

IndexLock StatusFrequency (Hz)SNR (dB)Power Level (dBmV)Modulation

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
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
525000000
453000000
459000000
465000000
471000000
477000000
483000000
489000000
495000000
501000000
507000000
513000000
519000000
531000000
537000000
543000000
549000000
555000000
561000000
567000000
573000000
579000000
585000000
591000000
597000000
603000000
609000000
615000000
621000000
627000000
633000000
40.366287
40.946209
40.946209
40.946209
40.946209
40.366287
40.946209
40.946209
40.946209
40.366287
40.366287
40.946209
40.946209
40.946209
40.366287
40.946209
40.366287
40.946209
40.946209
40.946209
40.946209
40.366287
40.366287
40.366287
40.366287
40.366287
40.366287
40.366287
40.946209
40.366287
40.366287
7.400002
7.599998
7.400002
7.300003
7.300003
7.800003
7.599998
7.500000
7.500000
7.699997
7.699997
7.599998
7.500000
7.199997
7.099998
6.599998
6.900002
6.099998
6.900002
6.699997
5.900002
6.599998
6.599998
6.199997
7.000000
6.699997
6.699997
7.099998
6.800003
7.199997
7.300003
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
QAM256
Highlighted
New Poster

Re: Connectivity issues

upstream

 

IndexLock StatusFrequency (Hz)Symbol Rate (KSym/sec)Power Level (dBmV)ModulationChannel Type

1
2
3
4
ACTIVE
ACTIVE
ACTIVE
ACTIVE
30100000
17300000
23700000
36500000
5120
5120
5120
5120
47.020599
47.020599
46.770599
47.270599
64QAM
64QAM
64QAM
64QAM
US_TYPE_STDMA
US_TYPE_STDMA
US_TYPE_STDMA
US_TYPE_STDMA