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ORBI RBK50 - Network is up but "Offline" - I AM LOSING MY MIND
I have an RBK50 that I have been using for a year. I have made NO changes. ISP is the same, the modem it's connected to is the same - literally NOTHING has changed.
Suddenly this weekend, it...
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jlkass wrote:
I have an RBK50 that I have been using for a year. I have made NO changes. ISP is the same, the modem it's connected to is the same - literally NOTHING has changed.
Suddenly this weekend, it's been losing connection with the modem. By that I mean my Orbi network is up and available, but shows "offline".
- I have confirmed that the modem is operating normally but connecting a laptop to it directly. There are no problems. (this is an Arris Surfboard - modem only, no router)
- I have also confirmed with comcast that they can see the modem and it is operating normally (good signal, etc)
- My Orbi has the latest firmware.
- I have tried power cycling the entire network several times
- I have even tried a full factory rest and fresh install of my Orbi
Occasionally I can get it back online briefly, but then it falls off.
The *only* possible issue I have been able to isolate is that I have recently been trying to upload several gigabytes of photos on one of my laptops to a google drive account.
Is it possible that upload is being swamped and the router is falling over? Is that a thing? Any other suggestions other than the possibility that the router is just dead? Literally NOTHING has changed and I have tried literally every suggestion I have tried on the forum (above and beyong the normal trouble shooting)
It's an arris sb6141 surfboard.
I have already tried replacing the ethernet cable. I can try disabling IPv6.
I had to step away but ran a little experiment before leaving. Each time I restart the upload to Google drive, I lose the router's connection to the modem. When I eventually get it back up (full power cycle + time) and then DON'T restart the upload, it stays up!
So it looks like the upload is knocking the router off for some bizzare reason.
jlkass wrote:
It's an arris sb6141 surfboard.
I have already tried replacing the ethernet cable. I can try disabling IPv6.
I had to step away but ran a little experiment before leaving. Each time I restart the upload to Google drive, I lose the router's connection to the modem. When I eventually get it back up (full power cycle + time) and then DON'T restart the upload, it stays up!
So it looks like the upload is knocking the router off for some bizzare reason.This sounds to me like the ISP modem gets overloaded with packets from Orbi and then gets blocked. This can be caused by bufferbloat.
I believe that reducing the MTU size might help. The MTU size configuration can be found under >> ADVANCED >> Setup >> WAN Setup
- Will try the MTU tweak tonight, but wasn’t that all supposed to be ironed out with DOCSIS 3 modems?
The 6141 modem is getting a bit older for it's model. Also known for some bad performances and operation over it's history.
How long have you had the modem?
What is your ISP speed UP and Down that you pay for?
Let us know if any suggestions help.
jlkass wrote:
It's an arris sb6141 surfboard.
I have already tried replacing the ethernet cable. I can try disabling IPv6.
I had to step away but ran a little experiment before leaving. Each time I restart the upload to Google drive, I lose the router's connection to the modem. When I eventually get it back up (full power cycle + time) and then DON'T restart the upload, it stays up!
So it looks like the upload is knocking the router off for some bizzare reason.- I get about 60 down and 6 up, which I realize is not great. The isp is telling me they see zero problems with the modem although I understand that may not include an evaluation of its overall performance; just that it’s not “broken”
