S33

DOCSIS 3.1 modem

  • 33 Topics
  • 71 Replies

33 Topics

G
The Many
GunnerThe Many
asked in S33

S33 login issue

I have the S33 and Archer Gx90 router, when I type the default IP. 192.168.100.1.  It times out so I cannot log into the modem to check status... If I unhook the router its works fine..... I just dont want the annoying process.    Thanks

2
G
The Many
1 day ago
F
The Many
FourthwindThe Many
asked in S33

S33 slow speeds with xfinity.

Both Arris and Xfinity pointing fingers at each other.  Paying for 1.2 gig and getting between 200 and 400 on ethernet.  Was getting 900plus on xfinity modem.  Attached are logs if someone can help me.31/12/1969 17:02:19 3 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=1c:93:7c:96:be:91;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; 31/12/1969 17:02:22 3 No Ranging Response received - T3 time-out;CM-MAC=1c:93:7c:96:be:91;CMTS-MAC=00:90:f0:3c:00:00;CM-QOS=1.1;CM-VER=3.1; 18/3/2023 07:09:40 3 SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=1c:93:7c:96:be:91;CMTS-MAC=00:90:f0:3c:00:00;CM-QOS=1.1;CM-VER=3.1; 18/3/2023 07:09:49 3 No Ranging Response received - T3 time-out;CM-MAC=1c:93:7c:96:be:91;CMTS-MAC=00:90:f0:3c:00:00;CM-QOS=1.1;CM-VER=3.1; 31/12/1969 17:00:15 3 CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz. 31/12/1969 17:00:20 3 SYNC Timing Synchronization failure - Failed to acquire QAM/QPS

0
F
The Many
1 day ago
M
The Many
Moe071The Many
asked in S33

S33v2

I purchased the S33, how can I tell if it's the v2 model?

2
M
The Many
5 days ago
F
The Many
FredZThe Many
asked in S33

S33 Modem Will Not Connect with Google Mesh Pro

I’m trying to connect Google Mesh Pro to my S33 for wireless internet.  I previously had this working for years.  I just switched to Xfinity Residential and I cannot get the Google Mesh to connect with the Arris.  It says ‘No Internet Connection’.  Wired connection is working fine.  The MAC address of the modem is registered with Xfinity. I found a post on Google Nest site that someone else had the exact same problem.  They registered MAC and SSN with Xfinity, but the post said they ‘got with Arris’.  It sounds like Arris had to do something?  Here is the part of the post “ I reached back out to Xfinity, gave them the information (they all of a sudden knew the issue once I had the answer) and then that’s where your suggestion came in. They sent me along to Arris and they then somehow connected my Nest Pro to the Modem. “

1
plemans
Rockstar!
13 days ago
M
The Many
MikeBThe Many
asked in S33

New S33 w/ Xfinity - Unable to see Event Log

I just got the S33 as my previous modem was no longer supported and I had been having connection issues.  With the S33 I am still having connection issues, I believe it’s the line, but in trying to troubleshoot myself I went to look at the Event Log and nothing shows up.  Why is this?  Do need a new software version?  All my status parameters are fine.

1
S
VIP
19 days ago
D
The Many
dgalonskaThe Many
asked in S33

Connection issue

My Arris Surfboard S33 will not connect to the internet after the Cox truck was outside yesterday. Cox claims there is no connectivity issue, but router is just stuck with a solid blue light now and none of our devices can connect. Any thoughts?

2
T
The Many
22 days ago
R
The Many
roninjgThe Many
asked in S33

internet constantly disconnects every few minutes

I have a brand new s33 that constantly disconnects every few minutes briefly. I have cox communications for an isp. I contacted their tech support and they checked by sending a signal and restarting the modem. They said everything looks fine on their end and that it must be the modem. I’ve tried multiple routers with the same problem. It started 2 days ago out of nowhere. Does anyone know what could be the problem 

1
S
VIP
26 days ago
R
The Many
roninjgThe Many
asked in S33

internet constantly disconnects every few minutes

I have a brand new s33 that constantly disconnects every few minutes briefly. I have cox communications for an isp. I contacted their tech support and they checked by sending a signal and restarting the modem. They said everything looks fine on their end and that it must be the modem. I’ve tried multiple routers with the same problem. It started 2 days ago out of nowhere. Does anyone know what could be the problem 

1
S
VIP
26 days ago
R
The Many
roninjgThe Many
asked in S33

s33 internet constantly cutting out

I have a brand new s33 the internet constantly disconnects every few minutes very briefly. I have cox communications cable internet. After speaking with their tech support they said they sent a signal to the modem and restarted it but the problem persists and they stated everything seems fine from their end. I have tried multiple routers with the same persisting problem. Does anyone know what could be the problem thanks 

1
S
VIP
27 days ago
R
The Many
rhshueThe Many
asked in S33

S33 event log change date

I have a s33 modem and need to change the date format from dd/mm/yy to the yy/mm/dd as the old motorola 6120 modems did in there event log.   also why is there not a option to send to a syslog server. it seems we are going backwards in usability. And before you give the standard line, even a raspberry pi can do this. 

2
R
The Many
1 month ago
K
The Many
kcinpdxThe Many
asked in S33

S33 light is blue, but no internet connection. Xfinity

This has happened a few times now, but this time it has not come back on after 12 hours.  Router indicating no internet, and attempts at using wired ethernet connection have failed. Oddly enough the light remains blue even when I disconnect the coaxial cable.  The unit is only about a year old.  Any ideas?

1
P
The Certified
1 month ago
T
The Many
TigiriusThe Many
asked in S33

Xfinity and S33 modem slow speeds

I’ve got the infamous 1.2gig service from Xfinity, they have checked and replaced everything they have changed the channel that my box connects to to their service, my speeds have not exceeded 500 mbps which is less than half. I thought it was a double NAT issue because they can only provide their own gateway modems which act as routers as well, but it’s still happening with the new S33 Arris modem I purchased just last week. Is anyone else having this problem? Is there a quick fix to cause the modem to recognize at what speeds it should be getting?I have the app, but it’s no help for this problem whatsoever.

9
S
The Certified
1 month ago
B
The Many
btberlinThe Many
posted in S33

S33 not fully compatible with Optimum

My S33 requests an option that Optimum DHCP doesn’t support.  So, the DHCP server responds with an error, which takes time to resolve;  During that period I lose internet connectivity - annoying in the middle of a movie. 09:42:25 3 Successful LAN WebGUI login from 69.114.226.195 on 23/01/26 at 9:42 AM. 26/1/2023 23:20:52 4 DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=c0:94:35:03:9e:97;CMTS-MAC=00:01:5c:95:90:5f;CM-QOS=1.1;CM-VER=3.1; 26/1/2023 23:45:06 3 Successful LAN WebGUI login from 69.114.226.195 on 23/01/26 at 11:45 PM. 26/1/2023 23:58:48 3

0
B
The Many
1 month ago
E
The Many
equittkaThe Many
asked in S33

arris S33

I have purchased a arris surfboard S33.  When I set it up the green light keeps flashing and my computer won’t work? 

2
plemans
Rockstar!
2 months ago
GlamRockCowboy
The Many
GlamRockCowboyThe Many
asked in S33

S33 with Xfinity--No LED when blues should be showing

Xfinity just upgraded me to 800 Mbps (in return for a $10/month fee increase!).  They also informed me, however, that my existing equipment would NOT support such an increase.  In response, I bought and installed an S33, plus a Linksys AC1200, using their 2.5 Gbps LAN ports.  Although the modem seems to be working well, the one fly in the ointment, so to speak, is that, although the LED flashes orange, and then green, when the modem powers up, instead of showing blue, the LED seems to go blank!  In spite of this, however, my internet speed has increased well above the 800 Mbps mark, ranging from 900 to about 912 Mbps, and seems to be working smoothly!  I do know that the area where I live is on the outer fringes of their network in this area.  Could that have something to do with the LED not showing blue?  In any event, how should I proceed?  Thanks in advance for any advice or assistance!

2
N
VIP
2 months ago
T
The Many
tjchmielThe Many
asked in S33

s33 with Xfinity - Drop in Download speeds, Event Log incorrect date

Last month, I switched ISPs to Xfinity with an 800Mbps plan, but continue to use the same s33.  I have noticed my download speed will occasionally drops to be around100Mbps, independent of whether I use the 1Gitabit or 2.5Gigabit port.  using my ORBI router statistics, I can see the WAN port drops to 100M/Full down from 1000M/Full.  To get my speed back, I have to reconnect my patch cable (CAT6) from the modem to the router to the opposite port on the modem (1 vs. 2.5Gigabit). Sometimes I have to reboot the modem as well.   Unfortunately, I don’t know exactly when this change happens so I can’t check the event logs at that specific moment. I have seen this with my previous ISP as well, so I don’t think this is specific to the ISP.  So what would cause this?  How can I resolve?While investigating this issue, I did look at the event log to see if I can find anything unusual.  Two things I have found, but may or may not be related.My event log listed a number of incorrect initialized date

3
plemans
Rockstar!
2 months ago
A
The Many
acpiperThe Many
asked in S33

Connecting S33 to either my RAX50 (Gbe) router or GS110MX 10G Switch fails.

Connecting S33 to either my RAX50 (Gbe) router or GS110MX 10G Switch fails, but it connects fine to my PC.  Any ideas why?  Using Cat 8

3
A
The Many
2 months ago
C
The Many
cpearcy1The Many
asked in S33

Schedule periodic reset of S33 modem to improve performance

I find that my 1.2 Gb speed from Xfinity periodically slows down from about 900 Mbs to about 100 Mbs.  This is remedied by restarting the modem by unplugging it for about a minute.  Is there a way to schedule a periodic restart of the S33 modem via its app?   I am thinking that, if not, I could connect it to a smart plug and schedule it to periodically turn off and on in the middle of the night.Also how often should the modem be restarted for optimum performance?

4
plemans
Rockstar!
2 months ago
R
The Many
RCabThe Many
asked in S33

Warranty Replacement

Purchased S33 modem May 2022. Kept overheating and dropping network connection. Spent 2 hrs troubleshooting with Cox and said modem is bad. Requesting assistance with warranty replacement. Thanks. 

1
S
VIP
2 months ago
ModulusVJ4
The Many
ModulusVJ4The Many
asked in S33

S33 with Xfinity 1.2 gigabit plan only getting 500-600 mbps down + another issue

Simply put I have Xfinity 1.2 gig service with a not even year old S33 modem.  When I plug my Chromebook via gigabit Ethernet adapter into the 2.5 or 1 gig port I get around 500-600 mbps down.  Xfinity tech comes out & connects his meter to the incoming cable & showed me it was getting 1.299 gig.  Then he plugged his meter into the cable coming out of the 2.5 gig port and it also showed 1.299 gig down.  That’s the first issue, now the rest of it that makes no sense to me;I have a band new Amplfi Alien router w/ the LCD touch screen.  It shows Xfinity’s speed coming into the router usually between 750-810 mbps but when I plug my Chromebook into one of its LAN ports I get 570 mbps down which I don’t understand.  Then here’s the last piece that makes me even more perplexed;I have a TP-Link RE650 gigabit range extender (which is connected via wifi to the Alien router) and when I plug my Chromebook into the LAN port on the range extender I get speeds of 720-800 mbps down.So at it’s

1
S
VIP
2 months ago
T
The Many
tjmnwlThe Many
asked in S33

user manual for s33 cable modem

Where can I find an online user manual for a s33 cable modem?

1
S
VIP
2 months ago
M
The Many
MarkMastracchioThe Many
asked in S33

W21 online but not showing in app. Cant add satellite

Modem - S33Router - W21 Dual PackProblem - I have no issues adding my S33 modem to SB Central but after that, I add my first W21 router and after completing successfully the app asks me if I want to add a satellite “now or later”. Whichever I choose it then shows a loading wheel in front of the app and I cannot do anything else. If I wait it out, app crashes. If I force close and come back, it starts all over again. Only showing my S33 as the only device on my network. However, the first W21 is online, blue solid LED and transmitting wifi. I’ve opened a case with Arris but doesn’t seem to be going anywhere. I’m ready to return everything and have Xfinity send me another rental.  NOTE. I’ve tried 3 different iPhones and 2 different iOS versions. 

2
M
The Many
2 months ago
J
The Many
Jerry MagersThe Many
asked in S33

Malfunctioning Modem/Router

My brand new Arris Modem/Router was working fine until a Comcast technician unplugged it last night.  Now nothing works.  No streaming, E Mail Googling etc.  Nothing.  Comcast tells me I am getting a good signal and that I should contact Arris to address the problem.  I rebooted it this morning and I have no Internet service.

2
J
The Many
2 months ago
P
The Many
pmokoverThe Many
asked in S33

S33 Dimensions

How tall (top-to-bottom) is the S33?

2
N
VIP
3 months ago
E
The Many
EdVThe Many
asked in S33

Syslog?

Is there any way to send the Event Logs to a syslog server?Local carrier is having issues, but wants to see local modem logs before they’ll open a Support ticket.

3
S
VIP
3 months ago
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