I have Comcast triple play and I play online MMO's and I've been getting booted from game servers, this happens multiple times a day. Speeds are good, they are over 50mb download and usually 10mb upload or at least close.
So I had a tech in this week, he said everything was fine, changed modem to a Cisco DPC3939 and changed splitter in case but I am still getting dropped once in a while. I looked at my signals my modem is showing and here they are:
Downstream
Lock Status Locked
Frequency 591MHz
SNR 40.946dB
Power 4.7dBmV
Modulation 256QAM
Upstream
Lock Status Locked
Frequency 23MHz
Symbol Rate 5120 KSym/sec
Power Level 33.250 dBmV
Modulation 64 QAM
I'm far from being an expert but from what I can tell it looks to me like my download numbers are ok but my upload Power Level seems low, potentially low enough I could get disconnects? So this made me check error logs and I found these periodically:
[Docsis][608]: Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out - Critical
[Docsis][608]: No Ranging Response received - T3 time-out - Critical
A quick google of these 2 errors says that these could drop connection:
T4 Timeout ( Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received )
Explanation: The cable modem did not received a station maintenance opportunity in which to transmit a Ranging Request (RNG-REQ) message within the T4 timeout period (30 to 35 seconds). The cable modem is resetting its cable interface and restarting the registration process. Typically, this indicates an occasional, temporary loss of service, but if the problem persists, check for possible service outages or maintenance activity on this particular headend system. This error message is DOCSIS event message is R04.0, Ranging Request.
T3 Timeout ( Ranging Request Retries Exhausted )
Explanation: The cable modem has sent 16 Ranging Request (RNG-REQ) messages without receiving a Ranging Response (RNG-RSP) message in reply from the CMTS. The cable modem is therefore resetting its cable interface and restarting the registration process. This typically is caused by noise on the upstream that causes the loss of MAC-layer messages. Noise could also raise the signal-to-noise ratio (SNR) on the upstream to a point where the cable modems power level is insufficient to transmit any messages. If the cable modem cannot raise its upstream transmit power level to a level that allows successful communication within the maximum timeout period, it resets its cable interface and restarts the registration process. This error message is DOCSIS event message is R03.0, Ranging Request.
My question is, based on these values and errors, am I likely losing connection? Should I be asking for a tech to come out again? Can he change the upload power level? Any help is appreciated.
↧