Skip to main content

    Support

    Offers

1225's profile
1225
20th Anniversary celebration
1st Like
1st Reply

Contributor

 • 

56 Messages

Monday, September 20th, 2021 3:37 AM

Closed

Not getting package speed with SB8200

I have the 400 Mbps package but I can't get download speeds higher than 95 Mbps, despite upgrading our modem from an incompatible SB6183 to an SB8200 (Software Version AB01.02.053.01_112320_193.0A.NSH), which is listed as compatible with my package on the Xfinity website. Uploads have been above 20 Mbps on both modems. I activated the new modem two weeks ago and the speed is still the same as with the old one. 

Question

 • 

Updated 

4 years ago

182

4

0

This conversation is no longer open for comments or replies and is no longer visible to community members.

Accepted Solution

EG

Expert

 • 

111.4K Messages

4 years ago

I am talking about directly to the 8200 cable modem (no router in the mix). Are you ? Does the computer that you are testing with have a 10/100/1000 (gigabit) ethernet port ?

(edited)

3

0

1225

Contributor

 • 

56 Messages

@EG   Thank you. That worked. All my uncorrectable errors vanished too. So, my router is probably bad? It's pretty old. 

4 years ago

0

EG

Expert

 • 

111.4K Messages

FWIW, the router wouldn't have anything to do with the modems bit errors. When you power cycle a cable modem, it resets the bit error counters all to zero.

What is the exact make and model number of the router ?

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.

Was your question answered? Please mark an Accepted Answer!tick

4 years ago

0

1225

Contributor

 • 

56 Messages

@EG  The router's an old RT-AC1200.

It's been almost two hours since I restarted the modem and there are still no uncorrectables. The last time I did I restarted it a week ago, there were about 10,000 on each channel within an hour. Maybe something was wrong with the signal last week. 

(edited)

4 years ago

0

EG

Expert

 • 

111.4K Messages

4 years ago

Is this with a WiFi connection ? If so, for a test, does a computer / device that is hardwired directly to the 8200 cable modem with an ethernet cable have the same problem ?

0

0

1225

Contributor

 • 

56 Messages

4 years ago

Hardwired and wireless speeds are identical.

0

0

EG

Expert

 • 

111.4K Messages

4 years ago

That router has only 10/100 ethernet ports. You need something more modernwithmore horsepower !!

0

0

forum icon

New to the Community?

Start Here