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About Bert-X
since
09-05-2017
02-20-2019
Bert-X
Contributor
46
Posts
6
Kudos
2
Solutions
02-20-2019
01:34 PM
A standard RG6 splitter will work if you are splitting to get a tv signal. For internet, you need to connect to your router port with ethernet cable or via WIFI.
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02-15-2019
03:45 PM
Also be sure the device you are using to test is capable of speeds greater than 100...
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01-19-2019
04:49 PM
Power cycle all of your units.
Try connecting your PC with gigabyte Ethernet speed (your PC may be the limiting factor) directly to the modem and see what speed you get. If still low, check all of the cables (try a different Ethernet cable and check all of the connections on the cables leading to the modem) and if that does not work, contact support.
If you get close to rated speed, then start debugging the other gear.
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01-18-2019
04:53 PM
You can sign on to many routers and see the WIFI clients. By knowing the MAC addresses you can determine if there is any unknown ones. The MAC address is sometimes printed on the device or can be seen when signed on.
Some routers allow you to set up selected MAC addresses and to exclude all others. You will have to go into the settings each time you add a new device.
You can also power off the router when not in use (at work, sleeping,..) which makes your WIFI less desireable to others.
Do change SSID, passwords, and use security.
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11-15-2018
11:39 AM
If it was me, I would be concerned. If the hacker is doing something real bad, the FBI will show up on your doorstep. They would have to be somewhat close to get your WIFI signal.
I do not know what router you have, but there are steps that you may be able to take that may help.
Change your router userid and password.
Turn off the router/Modem when not in use.
Keep checking and pausing when you notice them.
You may try moving your router or lowering the transmit power (WIFI router option) so you get the signal but the hacker does not.
Change SSIDs and passwords and use a very long hard password.
If your router has the options, a few things to try:
Make sure you are using all of the security features for WIFI.
Use WPA/WPA2 as that is the strongest.
Be sure remote management is turned off.
Set local management to be only selected PCs.
Set up wireless MAC filtering where you must enter all of the MAC addresses for all of your devices and allow only them to access the WIFI.
Set up Parental controls.
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11-15-2018
11:04 AM
I looked at the same two modems and I got the MB8600 about a year ago and have had no issues with it. My speed tier is only 150 so I am not pushing it very hard. I do not think you can go wrong with either.
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10-26-2018
04:27 PM
This may help.
https://www.xfinity.com/support/articles/personalize-customize-hnetwork-xfi
https://www.xfinity.com/support/articles/set-up-parental-controls-with-comcast-networking
Most routers will allow you see all of the WIFI connections. Check to see if there are any extra unknown ones. Depending on the router, you may be able to pause or delete them.
Be sure you are using the security options like WPA2-PSK for your wireless networks and strong passwords.
Some routers allow the setup of the devices using their MAC address (wireless MAC filtering) and you can exclude all other devices. Each time you add a device you will need to add it to the list in the router.
Also turning off the WIFI when not in use either by software options in the router or by powering off the router can deter others using it.
Hope this helps...
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09-23-2018
02:03 PM
WOW!
I have not heard of anything like that.
Who sent you the emails of the change?
When you changed the SSIDs, did you also change the guest networks?
If you router allows remote changes, be sure the option is turned off.
I would reccomend a reset of the modem/router which requires reentering all your settings. You can look up the procedure for doing the reset for your model.
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09-20-2018
10:09 AM
1 Kudo
I am not using DD-WRT in my router. I have a TP-link C8. I had to play with different settings before I got it to work. The settings I used for Comcast are:
DHCPv6
Get IPv6 prefix
Get IPv6 DNS server automaticlly
IPv6 Address assign type is SLAAC
Seems like I had to reboot my router before the changes took affect.
I use https://test-ipv6.com/ to test the connection.
Lets us know if this helps.
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08-15-2018
05:14 PM
Consider getting your own modem (The Comcast web site has models you can use for each speed level). You can go to a highter tier but do not go lower. It is cheaper to buy than rent in the long run. You must get one on the Comcast list.
If you have only one device (PC), attach it directly to the modem and you are done.
If you have more than one device, you have two different type of devices to select from.
1) A WIFI router which you can turn on/off WIFI.
2) A non-WIFI router to plug your devices into.
You can use just about any router and if not concerned with speed, select a low priced one.
Note: This will not work for you if you have the phone attached to the combo modem/router (Gateway) .
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08-11-2018
12:38 PM
Things to try...
1) Reboot your router
2) Reboot your modem
3) Power off the tablet and then back on (not just sleep mode)
4) On your tablet, remove the network SSID (on IPad it is the "forget this network" and then re-establish it
5) If you have multiple SSIDs on your router, try the other one if your tablet supports it.
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06-04-2018
11:44 AM
What routers are you using?
I think I would start by powering off both the modem and router, wait 30 seconds and power on modem first, wait till it normalizes and then power on the router.
If that does not work, power cycle the router and if you have a backup of the router when it was working, reload else reenter all of the settings.
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02-14-2018
08:52 AM
WIFI has two channels - 2.4 GHz and 5 GHz.
The 2.4 GHz is slower but works at father distances.
The 5 GHz is faster but not does not work as well at distance.
The SSIDs should be different for best performance and enables you to put specific devices on a specific channel. For example, you may want to put printers on the slower channel and your PC on the faster channel.
WIFI devices have different standards such as 802.11G, 802.11N, and 802.11AC.
“G” is the oldest and slowest. Next was “N’ which is faster. An “N” router will support both “G” and “N” standards. The current standard is “AC” and an “AC” router will support all three standards. And there are speed ranges of “AC” Routers.
Your WIFI speed may be limited depending on the model of your router.
Also on some routers, WIFI will slow down to the slowest connected device so if you have an old “G” device, it may be slowing your WIFI channel down to “G” speeds. Power off all of your WIFI devices and connect the only the test device.
Then of course the device you are testing the WIFI speed may be an issue as the WIFI driver in the device may be the limiting factor.
Hope this helps.
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01-05-2018
10:04 AM
go to https://mydeviceinfo.xfinity.com to see supported devices. I recommend that you get one of the upper tier models to allow for future as at some point the modem will no longer be supported. I also like separate modem and routers.
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01-04-2018
03:15 PM
I also live in Debary also and get slowdown at times but not anywhere as bad as that. I have Comcast Blast that they just upgraded to 100 Mbps. I tried both of those test sites and got 115 Mbps on Comcast and 119 Mbps on the Speedtest.net.
I would suggest you connect your computer directly to the Modem bypassing the router via cable and run the tests. It will help to determine if it is a router or a modem issue. If the speeds are still slow, first check to see if your modem is on the supported list (http://mydeviceinfo.comcast.net/). I replaced mine last year as it was on the “end of life” list and then went unsupported. Next I would try to reset the modem to factory settings if you can and retest. Then the next step would be to contact Comcast. If you need to replace the Modem, I suggest that you get one of the higher performing ones.
I also like separate modems and routers.
If the speeds are fine than you need to trouble shoot the Router.
Hope this helps.
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