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SB8200

SB8200

DOCSIS® 3.1 Cable Modem

465 Topics
1,203 Replies

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465 Topics

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kpjbThe Many

asked in SB8200

SIP being blocked on SB8200

I’m trying to get a SIP circuit to register, but the SB8200 (used with Xfinity) is blocking something. When I switch to my AT&T circuit, the SIP comes up just fine. Is there a manual for this device? I can’t seem to find one.

292

9 months ago

DfacenteThe Many

asked in SB8200

Led light status on sb8200

I bought a new unit and on first plug in I see the second blue light on, the other 3 are not lit. What does the 2nd blue light mean?

5972

9 months ago

Papabear51The Many

asked in SB8200

unable to connect to Gui - SB8200

Sb8200 been running nearly a year and it's decided to not connect to the internet, won't connect to the configuration page either via ethernet direct connection. Is there an update out there or is this thing simply broken? Any help here appreciated

1321

9 months ago

ap_2023The Many

asked in SB8200

Modem admin page login SB8200

Hi Team,I am totally new to this and not a tech savy person.I was able to open the web page, 192.168.100.1, But i cannot login using the default password.Is there anyway to reset the admin password?Also once we login into the web page can we update the firmware?Can we get to know the connection statistics?

4071

9 months ago

RudyFThe Many

asked in SB8200

Sb8200 - Unable to access the SBC app

Whrn i open the app and click the “network” tab it just apins and never loads. Should i delete app and reinstall?

291

9 months ago

Mowree6The Many

asked in SB8200

arris stopped working all lights flashing - SB8200

My arris sb8200 stopped working this morning. Any ideas? All the light cycle through and flash.

29675

9 months ago

baeaver707The Many

asked in SB8200

SB8200 Two Separate Subnets

I was hoping to setup 2 routers on a newly purchased SB8200 modem. I had one router configured as 192.168.1.0/24 and the other as 192.168.2.0/24I have been Googling but am stumped. I was hoping to have 2 isolated networks - if it’s possible.If there’s a KB floating around, or if anyone has some guidance, I would sure appreciate it any help.Thank you, and my apologies for a rookie question.

821

9 months ago

megspsu910The Many

asked in SB8200

SB8200v3 - SSID for new modem

Where is the SSID number for a new modem?

871

9 months ago

Jenclark242The Many

asked in SB8200

Initial activation-dont see the modem in the network - SB8200

I am trying to setup my ARRIS modem MODEL SB8200. Xfinity has done everything on their end and can confirm there is a strong signal, however I am not seeing the modem in my network to login. Please advise...

MGoldenThe Many

My sb8200 has 2 internet ports. The #1 connects laptop to modem. It flashes orange. 2 connects my router to the modem. It flashes green. Shouldn’t both be flashing green?

1872

9 months ago

Mmj105The Many

asked in SB8200

sb8200 wouldn’t activate and enable bridge mode

I had an incompetent Xfinity tech tell me srros needs to reconfigure my modem cause it’s in bridge mode..After all that I realized he didn’t have me hook up my router and he was wondering why my wi fi wasn’t showing up anywhere..

901

9 months ago

rs1014The Many

asked in SB8200

Software Security Update for all modems - FBI communication, Chinese hacker - SB8200

does anyone know if Arris has pushed out any security updates for all their modems as per the recent FBI announcement that deals with Chinese hackers targeting personal modems and installing virus / bots ? I have an SB8200 Surfboard cable modem i am concerned about

1341

9 months ago

JclutterThe Many

asked in SB8200

modem not working on SB8200

The power light keeps blinking and non of the other lights are no. How can I fix it? I purchased the unit on 11/28/2023.

961

9 months ago

JadenHutsonThe Many

asked in SB8200

unable to access GUI web portal on SB8200

I cant access my routers web manager every way I try to get it google just fails and says ERR_CONNECTION_TIMED_OUT

2985

9 months ago

cmattsThe Many

asked in SB8200

sb8200 takes ~10mins to give routers updated ip - daily

Not sure if this is an isp issue, a modem issue, or an issue w my signal levels.im sure my isp - optimum - will blame me for not using their equipment,it seems like its could be an issue w my cable modem? Ive seen about 4-6 posts with seemingly similar issues. I also have the issue where you can not access the modem gui management page.i’ve been at the same location for 7yrs, had optimum residential cable, business cable, and now switched back to residential service for better price and 1gig service. This issue is new since replacing my old docsis 3.0 sb cable modem + router to the sb8200 + 2 different routers that both have the same issue.equipment is this - sb8200 -> router/firewall → switch → ap/ethernet.at least once a day my router loses the internet connection for about 10m. all the lights on the modem indicate that it is connected as normal. I suspect this is related to the isp dynamic address updatingif i plug my laptop in directly, it immediately receives an ip address and

1228

9 months ago

wrogers84The Many

asked in SB8200

slow speed internet on SB8200

I just updated from an old SB6121 to an SB8200. The internet is way slower from before. I checked the status page and it looks like all my power ratings are out of the norms. Any way I can correct this?

1101

9 months ago

PhiloThe Certified

asked in SB8200

how much can I tweak an SB8200?

This is the first time I’m using Arris products and I love them! is there anything more under the hood other than going through the app?

1315

9 months ago

scyfeurThe Many

asked in SB8200

Sb8200 only getting 100mbps on a 1gbps plan

had a zfinity technician rule out the splitter, coax cable, and ethernet cable a possible cause, down to being the modem itself causing the problem. what could be the reason for this failure. also i am hard wired to it (no router in between). could it be a hardware failure on the inside of the pcb board? if so which component that i may de sauder and re sauder.

1745

9 months ago

JadenHutsonThe Many

asked in SB8200

port fowarding with sb8200

can I port forward with a sb8200 router? if so how?

1231

9 months ago

Wc206The Many

asked in SB8200

sb2000 only 1 ethernet port working ?

Just bought a brand new sb8200. Came with 2 Ethernet ports but when I try to use both only 1 works??

822

9 months ago

miklcThe Many

asked in SB8200

SB8200 Blue light - No internet

My provider Mediacom has provisioned my new SB8200 but it has only the 1 blue download light lit, shouldnt all lights be on?? Also I can not connect to my netgear gigabit switch …..

2766

9 months ago

Tculbert8The Many

asked in SB8200

How to OPEN UDP Ports 500, 123 , 4500 on Arris SB8200

I am trying to connect my T-mobile cell spot and it says I need to open Ports 500, 123 & 4500. How do i do this? I have the Arris SB8200.

1181

9 months ago

GonzoHardingThe Many

asked in SB8200

SB8200 wont stay connected with Xfinity provider

My provider uses Xfinity and they say that the modem has issues on their end they say it is connecting and then drops it over and over...the modem is pretty much brand new...I refuse to believe it is unable to push the small town providers 1 gig speeds I know it's not the WiFi router cuz Ethernet from modem straight to my laptop is still not connecting...anyone know what my issue may be? And yes it's been provisioned to the provider this issue just started tonight

2362

9 months ago

truesnickThe Many

asked in SB8200

How to enable bridge mode on SB8200

How can i enable Bridge Mode on my SB8200 on my PC and not my phone? I do not have access to wifi at the moment and the mobile app has no way to connect to the modem My issue is that my router is not getting internet from my modem - but ive confirmed that the modem is getting internet, as I am hardwired to it and connected to my ISP, Cox

5802

9 months ago

denis9834The Many

asked in SB8200

Slow/intermittent internet connection on Sb8200

I have sb8200 with COX in Phoenix, and I have exactly same thing happening, started about 2 month ago and it would drop to 30 mbps every week or so, cox came out checked the line and said it was good.

2142

9 months ago

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