Modems

DOCSIS 3.0 and 3.1 cable modems

1021 Topics

A
The Many
abclf768The Many
asked in Modem - General

Connection losses about 4-5 times daily

Hello,  I work from home using ethernet directly into the modem (hard wired) and have been having several intermittent connectivity issues.  System stall, and the modem losses internet connection.My work tech support says it's my provider. My internet provider says it's my modem.  What is the life of a modem? I think mine is about 4 years old.   And, what are the signs /symptoms that indicate my modem is going bad? 

3
S
VIP
4 months ago
B
The Many
BelthaThe Many
asked in SB8200

Downstream frequency not detected - SB8200

Hi, I have bought my modem since August 2023 as a replacement to the modem provided by my ISP. SB8200 never managed to work, and it show the following symptoms : 1. The green light of downstream keep flashing green 2. Startup ProcedureAcquire Downstream Channel : 0 Hz : In ProgressConnectivity State : In Progress : Not SynchronizedBoot State : In Progress : UnknownConfiguration File : In Progress        Security : Failed : BPI+DOCSIS Network Access Enabled : Denied 3. Downstream Bonded ChannelsChannel ID : 0Lock Status : Not LockedModulation : OtherFrequency : 0 HzPower : if the cable is disconnected, it's around -51.6d BmV. When it's connected, the value changed randomly, have values around 0 and sometimes become even positive.SNR/MER : 0.0 dBCorrected : 0Uncorrectables : 0 4. Event logAll the time i have this error"SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" And sometimes t

2
S
VIP
4 months ago
N
The Many
Nroethel57The Many
asked in SB8200

No changes in led light while doing factory reset on SB8200

Only green power light. Factory reset does nothing. No flashing lights. No reboot. Nothing. Plugged in for several minutes. New modem. Lights were working. Did a factory reset. Now nothing but "I'm plugged in".

1
S
VIP
4 months ago
J
The Many
JovinavangThe Many
asked in Modem - General

internet not working.

My internet is not working. Xfinity tried to help reboot but not successful. They said the problem may be the modem and I need to contact them but there is no phone number anywhere?? 

1
S
VIP
4 months ago
S
The Many
scubadudeThe Many
asked in SB8200

No internet on SB8200

I have talked to Cox Tech support twice, they did everything on their end to setup the SB8200.They sent rests to the modem 5 separate times and I unplugged it everytime, the modem does not respond. All the lights go green and only one eventually turns solid blue….absolutley nothing else happens after at least 1.5 hourse on the phone with Cox Tech support.I need this unit replaced.

1
S
VIP
4 months ago
M
The Many
MjwilandThe Many
asked in S33

need a phone number to talk to someone

Why is there no phone number to call????

1
S
VIP
4 months ago
B
The Many
Bob HallThe Many
asked in Modem - General

CM3200B Cable modem - Power connector

We as a company have been using the CM820B Cable modem. (240 volt internal PSU)We now want to purchase 100 * CM3200B Devices. 12 volt  external PSU.Cannot find specs for the DC power connector.We need  a “Brick” type PSU 12 volt @ 2 Amp - 2.1 * 5. 5 mm connector does not fit (5.5 to big)Measured supplied PSU  connector @ 1.1 * 5.1mm.Anyone know a “brick” PSU that will work or can confirm the actual size of the connector on the CM3200B 

1
S
VIP
4 months ago
M
The Many
mrwildbobThe Many
asked in SB8200

SB8200 Change Management IP

How to change the Management IP.  192.168.100.1 conflicts with the network subnet.

1
S
VIP
4 months ago
D
The Many
Dvecch1The Many
asked in Modem - General

Unable to access the modem with customized password

Cannot access modem with the password I created 

2
S
VIP
4 months ago
P
The Many
PhillipmbaThe Many
asked in SB8200

SB8200 event log wont clear

I’ve followed the instructions to factory reset the modem several times but the event log doesn’t clear. Is there anything I can do?

3
S
VIP
4 months ago
B
The Many
Bman22The Many
asked in S33

s33 blinking green

I just got it today. Talked to rcn registered the Mac it's still just blinking green 

7
S
VIP
4 months ago
T
The Many
troykentkingThe Many
asked in SB8200

Unable to connect Xbox with SB8200

Can’t connect xBox

1
S
VIP
4 months ago
R
The Many
roattwThe Many
asked in SB8200

SB 8200 Version number? And no support options?

I cant find a clear answer on versions for SB8200.  Other questions have been asked but no clear answer.  Need v3 as preferred for Spectrum.  And am I correct that there is no way to contact Arris support unless you pay for the support tier?  Thanks !

2
R
The Many
4 months ago
N
The Many
Nroethel57The Many
asked in SB8200

No internet on SB8200

Only green power light. Factory reset does nothing. No flashing lights. No reboot. Nothing. Plugged in for several minutes. New modem. Lights were working. Did a factory reset. Now nothing but "I'm plugged in".

1
plemans
Legends
4 months ago
R
The Many
ronmax999The Many
asked in SB8200

SB8200 Speed gets Slow

I have Xfinity and my normal speeds are about 700mb.  However, every few days my speed slows down to 3mb and I have to boot the SB8200 to get the speeds back up.  All front lights always stay green even if there is a provider issue.???  Today no internet with all lights green, reboot the Aris and internet is back.???

5
plemans
Legends
4 months ago
E
The Many
eegleThe Many
asked in SB6190

Arris phone number for support - SB6190

Does Arris have a phone number to contact their support?

1
S
VIP
4 months ago
B
The Many
Borders67The Many
asked in S33

No Internet S33 Xfinity

Hi, we just got the Modem S33 with Mesh. We did a walkthrough with Xfinity to activate our Modem. They stated on their end that, it is showing we have service. We have a solid blue light, but when try to connect our devices it say connected but with no Internet. Please Help!! 

1
S
VIP
4 months ago
T
The Many
trleahyThe Many
asked in SB8200

Unable to connect laptop with SB8200

I’m not able to connect my new SB8200 to my laptop to activate it. The top light is green, the 2nd one is blue and the other 2 stay green (it should be white - blue - blue -white). I’ve restarted it multiple times and also used the reset button but nothing changes. I can reconnect my old SB6190 using the exact same connections and it works fine. Any suggestions?

1
S
VIP
4 months ago
C
The Many
cmerritt3The Many
asked in SB8200

Need Assistance configuring 2nd ethernet port my Arris Surfboard SB8200

I just purchased the Arris Surfboard SB8200 modem.  Comcast has already registered and configured on their end.  I have two ports on the modem, I have one port direct connected to my wife’s work computer that has an IP address.  The other port is to my router for WiFi which is not getting an IP address for it.  I was informed to call ARRIS to configure the new modem. I’m waiting on hold for a support rep now.  Figure I can get some answers/help from the community.

3
D
The Many
4 months ago
L
The Many
lannitravenThe Many
asked in SB8200

New Ooma Telo Won't Connect With Arris SB8200

I’ve had an Ooma Telo VOIP router for making phone calls for over a decade.  Recently my Ooma Telo started acting up, requiring frequent reboots to get my phone system to work. In response I ordered a new Ooma Telo but was unable to get it to work with my Arris 8200. After three hours of phone calls to the technical support folks at Ooma, I was sent the following instructions:“Please also check and make sure that the firewall on your modem and/or router have been disabled. Ooma uses the following application ports for outbound data and voice traffic:UDP and TCP So you need to make sure those service ports are open on your internet connection”Has anyone else encountered this difficulty? My first thought was that the new Ooma Telo might be defective.

2
plemans
Legends
4 months ago
D
The Many
DoggydearThe Many
asked in Modem - General

what is the bandwidth of my Arris SB 6141?

Hi, I’m having trouble connecting a Simplisafe base station to my Wi-Fi and they said it might be due to being on the wrong bandwidth. I checked with Xfinity and they couldn’t help me since it’s not their equipment. The other things SS said was that their equipment wouldn’t work if we are using VPN. I explained to them that I have several devices from different manufacturers all connected to the Internet...no problem.Would bandwidth and VPN be a problem?

2
plemans
Legends
4 months ago
B
The Many
BigdougiepThe Many
asked in SB8200

Connecting Google Nest with SB8200

My SB8200 does get Internet and is working but my Google nest router doesn't seem to get anything from it so I can't learn in my nest router 

3
D
The Many
4 months ago
J
The Many
Joe NolanThe Many
asked in SB8200

Who changes the default login password on the sb8200

If I install new sb8200 cable modem, who changes the login password to modem when done?does the cable company do that or do i changed it from default? 

3
D
The Many
4 months ago
J
The Many
JosephD9The Many
asked in S33

Xfinity Gigabit Arris 33 Slow Internet Speeds

This has been a very frustrating experience. For several months I’ve had slow internet speeds and I’ve called both Arris and Comcast and both companies blame the other. I finally got a comcast tech to come out and he says that there is nothing wrong with the signal coming into my home. So now I am back to looking for support from Arris. This modem is less than 1 year old. I pay for 1.2 gigabits but I consistently less than 400. Comcast assures me the issue is related to my modem. I would appreciate any help in resolving the issue. From what I’ve been able to figure out, the Arris S33 is compatible with Xfinity up to 2gbs. Is my device faulty?  

1
S
VIP
4 months ago
D
The Many
DomThe Many
posted in SB6190

Wi-Fi not connected in SB6190

Wi-Fi goes off at night unplug the system plug back in dosent come back 

0
D
The Many
4 months ago
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