Strange issue with Cradlepoint MBR-900
Okay, now that the tower issue I was having previously seems to have been resolved and my connection speeds have finally stabilized for the first time in quite a long time I've hit another strange issue.
I have a Cradlepoint MBR-900 that I use to transmit my connection to a few devices in my house, it generally works great and I've never had any real issues with it -- until now...
When I run a ping to the router I normally get a 1-3ms response time, but the moment I activate the connection of my Sierra 598U the ping instantly increases to 30-800ms, where the 300-800ms spikes come once every 15 seconds or so with the response hanging around 30-50ms on average. Disconnect the modem, ping drops back down.
I thought it was something to do with interference but I've never had it give me any trouble in that regard before, and those every 15-second spikes between my laptop and the router cause the speed of the connection to drop to near nothing, and the overall speed is also heavily decreased while the modem is connected to the router. I tried changing the wifi channels on the modem, and while some worked better than others (the lower channels resulted in a near-constant 700-1,200ms ping) and the auto-channel setting has done nothing but give me issues with interfering with cordless phones and my microwave (oddly enough) so I tend to pick a channel that works and stick with it; 11 and 12 always served me well in the past.
I don't have an extension cord for the modem handy but my next logical step would be to try that and see if moving the modem away from the router a bit would help, but I figured I'd ask some opinions around here beforehand to make sure there's nothing I'm missing before I go out and pick up a USB extension.
Plugging the modem directly into the laptop has normal speeds and latency -- however the signal is weaker than it is on the router, as I have the router placed in the optimum signal location I could find when I moved into this house.
Not really sure what else to try besides the extension cable thing, and I'm not sure why that would help anything if the problem just started appearing out of the blue today; could the router be taking a crap on me?
I think if you have Traffic Shaping set it does that. I have it set on mine to 384(UP), 1024(DOWN), when multiple devices are connected doing pings I can get up to 700ms+, this is because it's prioritizing traffic by delaying the response time of the traffic it sees as non-time essential. When I disable it, pings across the board decrease dramatically, but bandwidth bottlenecks occur.
|reply to JSmith67744 |
If dexter's suggestion doesn't quite do it, then maybe try the following:
Log into the router and check the dbm before going out for the extension cable. Cradlepoint's can serve as a power booster for the USB modems (which was the initial reason for the use of the extender cables) as they require a bit more power to perform better and get a stronger signal.
Correct me if I'm wrong but the MBR900's are the older version and the newer is the MBR95 and I've noted some happier users with the upgrade so it may be time to retire it. Does it have the same reaction while hard wired to the computer as it does via WIFI?
Sometimes changing the mode to b/g/n or to b/g if you already have all three can make a difference.
The only other suggestion I can think of is to see if the Sierra tends to get warmer to the touch while in the router compared to the computer.