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CM700 time mismatch and login issues
I have been having trouble logging into the GUI for my modem. Lots of page not found and one "unsupported protocol" error. I read about that and it says a time discrepancy could be the cause. I hav...
Well, it looks like it was that butt connector... or perhaps just needing to also clean and tighten the ISP side.
First, I connected the ISP cable directly to the modem outside and plugged the ethernet into a laptop. Accessed the GUI and correctables and uncorrectables were 0. So, I installed a fresh new splitter out there to the cable that runs to the network closet and tested similarly in there and success, errors still 0, so my cable is good. Phew.
So, I then reconnected CM700 modem output ethernet to the router to restore my network and everything is working... EXCEPT I can no longer log onto the modem GUI to check or monitor this going forward. On any device, wired or wifi. On any browser. I just get "can't reach page, took too long to respond" errors. Just like it had been for weeks lately until somehow miraculously I started being able to logon this morning. But that is just gone again? I really don't understand what is blocking me from reaching the modem admin GUI.
I seem to be able to mostly log on today without too many issues wifi and wired PCs. For the last week I could get in very rarely. Only today on Edge browser I get unsupported protocol. No issues on Chrome. Powers and SNR all within spec. Status shows good.
I am doing this because I have been getting some connectivity issues and dropouts. The CM700 event log showed some "critical" errors, T3 errors.
There is one butt connector between the Xfinity service cable and a cable I have run to my closet where the modem sits and feeds my Linksys 3200ACM router. Can't eliminate that butt connector. In the interim I have cleaned and tightened those connections and reset the event log. Nothing so far.
Here is the connection and channel info. BTW, I just got another T3 timeout error in the log.
Please post a capture of the Event Log.
You have lots of Correct and Un-correctables that should be all zeros. This mostly comes from bad cabling, splitters or fittings that are not done well or snug. I would check your cabling from the ISP service box to the modem. Remove any splitters and make sure fittings are snugs and cable doesn't have any kinks or sever bends.
I am suspecting that I may have a bad Comcast service cable. Similar happened once upon a time... But it could also be my coax that feeds my closet that is butted to the Comcast cable. There are no splitters. Just a simple butt connection, one in, one out. I can run a temp coax from this butt connection outside through the door or window to the modem to see if that makes a difference before I call them to come check their cable.
Here is the log file from this morning. I have since cleaned and tightened the outside butt connections but I have had one more T3 timeout since then.
OK, The ISP needs to resolve those Critical messages in the Event log.
