@JK6399 if your OFDMA channels are showing inactive, and you're still seeing disconnects, I'd say that you have a cable signal problem of some type. Are we talking about ethernet connected devices in this case? Disconnects with Wifi don't necessarily indicate the same issue is at hand.
Can you log into your modem, navigate to the STATUS .... DOCSIS WAN tab and copy the Downstream Overview, from that line all the way to the bottom of the OFDM/OFDMA Overview. Select that entire area, then right cick .... Copy. In a new post, right click .... Paste. That should paste in the entire table as it appears in the modem. Disregard the data that sits above the Downstream Overview.
Thanks for the reply @Datalink. Yea I tried that this morning when I saw some of the posts saying their OFDM channels are being disabled, tried it again now but still no luck. It's not a line issue as I've had 2 techs in the past week come to check, and the tech yesterday also replaced the modem.
one issue resolved, but another remains.
The latency spikes are out of control. Some games you won't notice it because the way the game handles ping adversity is good and you can't tell because it doesn't affect you locally.
Other games, you "rubber-band" and it redraws everything that just happened, so basically you "do something" in game and see it on your screen, but the game rubber bands you back to 5 seconds prior and all of the events happen again but usually it causes a weird after effect where your movement gets messed up and you bang into walls and such.
Obviously it's great to not be disconnecting, but if you game... several games will experience this brutal issue.
@Datalink thanks for reply, there were many tech. visit and also troubleshoot on rogers tech. support with no result (every time tech visit home, removing/installing couple of filters, new connector and replace modem). Works for couple of days, some time week, and start issue again.And yes, it's ethernet connected device, not a wifi.
|Port ID||Frequency (MHz)||Modulation||Signal strength (dBmV)||Channel ID||Signal noise ratio (dB)|
|Receiver||FFT type||Subcarr 0 Frequency(MHz)||PLC locked||NCP locked||MDC1 locked||PLC power(dBmv)|
|Port ID||Frequency (MHz)||Modulation||Signal strength (dBmV)||Channel ID||Bandwidth|
|Channel Index||State||lin Digital Att||Digital Att||BW (sc's*fft)||Report Power||Report Power1_6||FFT Size|
@JK6399 here are your signal levels:
There's no way that this meets spec. Ask @RogersAndy, Moin, Corey, or Tony to check the OFDM MIBS which is the OFDM sub-channel data just to see if its ok. The OFDM channel runs from 350 Mhz up to 447 Mhz, so within that frequency band there is a signal rise which might be ok for the OFDM channel to operate. The question is, what do those signal levels do to the automatic gain control that the modem is probably running. Don't know but thats a question that I'd be asking.
Personal opinion, you have a combination of a neighbourhood node or line amplifier problem coupled with a cable issue.
1. Has the external cable been replaced during all of this?
2. Do you have underground or overhead cabling? With underground cabling the techs can run a check to determine if there are any breaks in the cable and it can be tested from both ends. Thats a Time Domain Reflectometry (TDR) test to look for problems in a length of cable. It will pinpoint the first, maybe more, locations in a cable where there might be a break or reflection caused by a short.
If you have overhead cabling, I wouldn't expect a tech to climb a utility pole to run the test, but, hey, you never know.
I think you need a Senior tech (real Rogers tech) to look into this, or possibly a maintenance crew, which the moderators can arrange.
That signal line should be a flat line at 0 dBmV, not bouncing all over the place. There is no way that the signal levels are within the maximum slope allowed by Rogers or the DOCSIS specs.
Yes, I'm bridged and also on an asus router, but I don't think there are any settings in my router that are going to prevent latency jumps. I've tried bridged and just connected directly to the modem. No matter what, I get these spikes. I just finished trying to play a game mid day while my kid napped and it was infuriating. Just rubber banding around because of these latency hops. It's terrible.