SBG8300

Brand new out of box and Ethernet ports do not work. They flash green during startup but then stay dark. I'm just going to return via Amazon if there's no real advice.  The WiFi is just fine. 

I recently bought the Surfboad SBG8300. The WiFi signal is not great in various parts of the house. Is there a WiFi extender or a mesh system that is compatible with this modem/router? What should I add to the system to extend the WiFi signal? Thank you!

First of all, my speed test only shows 60 for download. That may be the problem? But I have an SBG8300, and I'm only getting sound on all my streaming services. The picture is black and buffering on Netflix. On Hulu and Peacock, I get sound, but the screen is green. Anybody ever have this problem or know how to fix it? I already restarted the modem. This problem is in my new TV. Old TV doesn't have this issue. On the TV with the problem, the home screens on all streaming services are good and clear.

I purchased a new SBG8300 from Amazon a little over a month ago and it had been working fine. Last week the wifi connection started dropping out. Devices wouldn’t stay connected. It turned out that one of the issues was with my service provider. Their issue was all fixed on Friday and they even let me use one of their routers over the weekend to ensure everything stayed connected correctly. Now I have switched back to the SBG8300 and added the same ssids as before. Hardwired devices work as they should. 5G WiFi devices stays connected 90% of the time. 2.4G WiFi devices will not connect at all. The 2.4G ssid continually goes in and out back to back and never lets anything connect and even when it does, it doesn’t have internet access. I also had an issue with devices auto connecting even though the ssid/password are exactly the same as before. This is a continuing issue after multiple power cycles and factory resets. What could be the issue? 

I just setup the SBG8300 and now that I have the device configured I was wondering if there was a way to backup the settings just in case ?

The http://192.168.0.1 will not connect. It’s as if it does not exist. I finally was able to go to another webpage while looking for entry, (SBG8200), finding an SBG8300 access page beneath & accessed the numbers above, with https:// Redirect. I clicked the box “Proceed”, the page says “502 Bad Gateway. Certificate verify failed: self signed certificate in certificate chain”. Why doesn’t your own (ARRIS) web pages work??? Remind me again why I spent my money to not have access to my Surfboard???

should I use a booster with my 8300 and if so, any model recommendations?  2nd floor of home has slower internet 

I’m trying to connect my tv to this new modem I purchased...following the instructions in the book..using the 192.168.0.1 was able to rename it but then it kicked me out and can’t get back to where I was and none of the passwords work.  Please help. 

Over the last couple days, my internet keeps going in and out. I had cox come out and they tested everything on their end and said nothing is wrong. Being that my modem is less than 2 years old, he thought maybe it hasn’t been updating. How can I check on this? 

I've unplugged all cables from and power cord from modem. The blue online comes immediately on, but will not show reading for Wifi.. any ideas?

Trying to login to my SBG8300 and get ALERT Operation Failed. Called Tech Support and they said my warranty has expired but if I wanted support I would have to get a warranty.

How do you reset the modems name and password?

I just purchased a SBG8300 and I have xfinity 1GB plan. I previously was using an sbg6950ac2. We are direct connecting via ethernet.With the old modem, we were getting speeds of around 400 MBS using comcast speed test so we decided to upgrade. However, with the new modem we are only getting around 150MBS. We tried multiple devices and different cables. Interestingly I am getting around 350MBS using my galaxy phone using wifi…Comcast of course says they are not the problem and that I should contact the manufacturer of the modem. Any suggestions?

Man,From everything Im reading on this forum and Xfinity forums, I really should have thought sixteen times over about getting this model.So:Looking for some suggestions here. I am a gamer, Xbox One Series X, PS5, Switch, you name it. I was not getting the speed I wanted to stream and game with friends, etc. I was paying Xfinity for one of their basic router modem combos and had the 800mbps plan. Surprisingly it was really decent speeds for that plan but my upload was capped and it was causing lag in certain situations. I bought the new router (SBG8300 which was listed as a compatible device) but Im not getting anywhere near the 1.2gbs and now Im hearing it doesn’t truly support the gigabit plans from individuals on here. Im thinking of returning this router tomorrow and getting a better model. Any suggestions on models? I am getting like 250-300mbps on direct ethernet (expensive double braided ethernet), and seems like better speeds over 5ghz wifi. But I

Arris SBG8300 as provided does not allow VPN pass-thru.  There is article (link below) that provides direction how to do so.  But this requires newer firmware version 01.02.078.04.NCS or later to enable via ALG sub-menu. My box has earlier firmware 1.01.137.NCS which does not have the ALG menu.  Thus I cannot enable VPN.Arrris support says contact my ISP (Spectrum) to push new firmware.BUT: Spectrum doesn’t have the new firmware; they say that Arris has not provided any updates since the 1.01 version.SO: caught in nowhere land, cannot use VPN.  The link below is helpful ONLY if you have firmware 1.02.078 or later; if you do not, then apparently SOL??Anyone else having this issue?  Any work-around?? Link below that helps if you have proper firmware:http://

On my SBG8300l what would cause a single Ethernet port to deliver 10/100 while the other three deliver gigabit speeds? With Xfinity Speed Test, Ports 1, 3, and 4 deliver 250Mbps+ download, but Port 2 delivers a maximum of 92Mbps.

Hi, Im trying to block a device in managed devices but the add blocked device does not show up. here is a sceen shot of my options. can you guide me on how to add a blocked device? Thank you! 

I bought SBG8300,  internet is through Xfinity , however Samsung Smart is not able to connect the internet /WIFI. I am not sure what settings needs to do to connect TV to Wifi.

Upgraded to the SBG8300 a few weeks ago.  First couple of weeks went flawlessly then started having issue with internet dropping.  Talked to Xfinity, no issues shown on their end.  Did factory reset on the SBG8300, still having intermittent dropping issues.  Power cycling the modem brings everything back online until the next instance (could be hours between occurrences).   Pulled event logs from today’s drop at 9:21  

I have the same problem with the 8300 model.   I don’t have access to the devices I want to block so can’t adjust parental control settings or address settings and they seem to continue to connect even if I change the passwords and reboot. Also the surfboard app shows devices connected to a different channel than what they are logged in on. 

I purchased the 8300 from an online marketplace. The seller seems to have setup the login credentials which I don’t have access to. How do I go about setting up a new user id and password on the App so I can access the router settings?  

Hello All,I just bought the SBG8300. I am getting 570 MBps on Ethernet direct to Modem, and 70 MBps to Wifi. Spectrum 500 Plan iMac 2022 - 10 feet from router  Connected to 5 GHz No other devices connectredI see this complain in this community, but there is only a single reply and no conclusion. Googled it too. Thanks Everyone! Bill 

I used the 192.168.0.1 to access my Arris SBG8300 Admin dashboard to change my wifi passwords. I wqs able to successfully change 1 PW for my 2.4G but as soon as it changed I lost wifi and access to the portal. I called xfinity to aak them to relink my modem using the new PW but they said “not my problem” basically and that bc I don't have an xfinity modem they don't have access to help. I need to get access back to my admin and reset my login PW too bc I realized I may have done all this wrong. So essentially I changed 1 wifi PW when I have several attached to my account ie: 5G, guest accts etc. So I’m at a loss on what to do bc none of my devices will now log back into admin. When I try I get the “ safari, couldn’t open the page because the server stopped responding” error every time. Help!!!!

I understand how to enter in websites and/or words to be blocked via the parental control using my Arris SBG8300.  I understand making sure blocking is enabled and/or entering times for blocking.  But I have a few issues I can't figure out how to solve.   Issue #1 (and most important):Most websites I enter are blocked, but some I have entered are not blocked.  For example, I need to block redgifs.com and youtube.com.  These, along with a few more explicit sites, still are accessible on my kid’s school issued chromebooks. Issue #2I would like to delete or edit some of the websites I have previously entered to be blocked, but when I click on Edit or the trash can icon, I get an error message (500 - Internal Server Error). Issue #3Sometimes when I log into Parental Controls, the number of blocked websites is changed.  Some are missing.  Is there a limit I don’t know about?  I have unplugged my SBG8300 f

How do I find my network path?