I do not know if this is entirely correct or not, but it seems to me my TP-Link MR3220 with an ZTE MF112 USB plugged in seems to crash when I use Google Instant search. By crash I mean you log into the router web page and it says device unplugged and/or identifying but it never reconnects. I find I have to reboot the router and/or unplug the ZTE MF112 to get it going again. If I disable Google instant search it seems to work OK. Now I have not tested this theory thoroughly but I noticed I seemed to have problems after doing google searches and narrowed it down to instant search.
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3G/HSPA/LTE Routers
- Thread starter morkhans
- Start date
I had no further problems with Google Instant turned off until I connected my other netbook to the TP-Link router wirelessly, at this point the Internet stopped again but this time when I went into the Router web interface it said identifying rather then device unplugged and it actually managed to identify and connect back up to the Internet without me rebooting or unplugging it.
It just did it again, the internet went down and the web interface said it was identifying the USB stick, after a couple of minutes it reconnected to the Internet by itself. Since disabling google instant search I have not had it say device unplugged leaving me with no option but to reboot the router or unplug the modem. It may be disconnecting from the Internet because I have max idle set to 15 minutes. In anycase its a lot better now with google instant off.
Well I was using the Internet for a few hours and lost the Internet again, this time when I logged into the TP-Link MR3220 Router it was the dreaded device unplugged message. So it seems apart from google instant search there are other situations which can cause the issue. In anycase I just rebooted the router from within the web management and it then identified the modem and reconnected. Still its a whole lot better for having google instant search switched off and I can get at least a few hours Internet use out of it before it needs a reboot.
Right now I am getting somewhere, just before I lost the Internet again last time with the device unplugged message I logged into ebay and went to my ebay and my feedback. I thought nothing of it at the time but I just logged into ebay again and the same thing happened device unplugged, so as well as google instant search logging into ebay and going to my ebay/my feedback causes it to happen as well.
So basically if you avoid doing these things the Internet should be pretty reliable as I have not expierienced the problem browsing to most sites.
Ok an update, it now seems there maybe no pattern to its occurence as I logged into eBay a third time and had no problems, also I lost the Internet again with the device unplugged message simply by viewing this site. The only pattern I can make out is that I had a period of a couple of hours when the problem did not occur so maybe its all to do with the signal and state of the mobile network. Damn I really thought I was onto something with this ;( but it seems to happen at random and it can work fine for some hours.
Now looking into the possibility that a DECT Cordless phone is causing all the problems, it was being used between 8 - 8:30 pm this evening UK Time around the time I was having problems and I do not seem to be having problems at the moment. I shall monitor this and provide an update with my findings.
ajax
Executive Member
Have you tested with the modem plugged in directly on the pc? I had router instability issues which just magically disappeared after a while. I think your problem lies with Cell C.
I am not in South Africa on Cell C though, I am in Jersey, Channel Islands, United Kingdom on the Sure Cable & Wireless HSDPA network. Its still disconnecting the same way, this morning it was device unplugged when I awoke and I rebooted the router then it said device unplugged again after a few minutes.
You know I am seriously starting to think it has a whole lot to do with the DECT phone, it was in use earlier when I last had the device unplugged message and since then its been hang up for the last hour or so and I have not had the device unplugged message again since.
It has disconnected twice but it said identifying and reconnected by itself and that may be to do with the 15 minutes idle time I have set. I think it adds up the idle minutes until it reaches 15 rather then start again each time the connection is idle.
EDIT: It just said identifying again and I do not think it had been idle for 15 minutes but at least its not saying device unplugged from which it cannot seem to recover.
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ajax
Executive Member
You should try the modem plugged in directly on the pc. DECT phones use other frequency bands and if your DECT is OFCOM certified (not sure if they do certify wireless devices like ICASA in SA) then it "shouldn't" be interfering in other bands.
I just think the DECT phone is preventing the 3G modem from going from the unplugged state to the identifying state. I think the ZTE MF112 3G modem might have some sort of compatibility issue with the Router although the firmware supports it. If I could find a modem bin file for the MF112 maybe I could try that. In anycase since the DECT phone has been hung up I have not had to reboot the router to get the Internet going again.
EDIT: Not entirely sure I am giving it enough time to go from unplugged to identifying as now when I lose the connection, sometimes it does say unplugged but then switches to identifying and reconnects to the Internet. When I woke up this morning it was in the unplugged state and did not seem to want to recover but maybe I am not giving it enough time to recover.
EDIT2: It seems that as long as you have the 3G stick set to connect on demand when it loses the connection it will go from unplugged to identifying and reconnect to the Internet automatically, however whilst the DECT phone was in use it did reconnect but the Internet was unusable as I could not ping any sites, had to manually disconnect and it manually reconnect again which I happened to do when the DECT phone had been hung up then it worked fine until I lost the connection again some time later but it automatically reconnected OK. So it appears the DECT phone does have some impact of the functioning of the router *sometimes* and I recommend you have it set to connect on demand with an idle time of 15 minutes.
EDIT3: I disconnected and reconnected whilst the DECT phone was in use and the Internet worked fine, so it appears that the DECT phone does not always have an impact on the functioning of the router OR that sometimes when the router connects you cannot ping any sites without reconnecting but as long as you have the modem set to connect on demand it will always go from unplugged to identifying and then connect to the Internet.
EDIT4: It appears that when the situation arises that it connects to the Internet but you cannot get to any sites or ping any sites then it is time to reboot the router rather then manually disconnect and reconnect as although that might work the router is on its way to crashing and sometimes you cannot bring up the web interface after even. As I say this only happened the first time whilst the DECT phone was in use but that may have been a coincedence.
So to summarise leave the 3G modem set to connect on demand this means that when it loses its connection instead of just sitting there saying device unplugged it will reidentify the modem and reconnect automatically. However if you find that it connects but you cannot get to any sites a router reboot is the best option. As I say this only happened to me after a few hours and whilst the DECT phone was in use but its entirely possible that the DECT phone has no influence over this and it was just a coincedence. I hope this does not happen too much.
EDIT5: Right I have now managed to reproduce the problem where the modem stays in the unplugged state, it seems that when it connects but you cannot get to any sites or ping any sites the router needs to be rebooted and the modem needs to be unplugged and replugged.
When I only rebooted the router it connected but still no sites were accessible until rebooted it again and I unplugged and replugged the modem. It seems connect on demand does not work in this situation but it does work for the sporadic disconnects that you get every so often which can be recovered from.
Its just once it connects but you cannot access the Internet its totally screwed and the router and modem need rebooting and unplugging replugging and this happens from time to time and its nothing to do with the DECT phone.
It would seem that it would be a good idea to set the idle time to 0 so it remains active but regardless of this it will still lose the connection from time to time and sometimes its not recoverable without rebooting the router and unplugging/replugging the modem which is a shame. Most probably some incompatibility between the router and the modem.
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I have now uploaded the MF190 Cellcom BIN file to the router, I have an MF112 but there is no BIN file for that as its already supported in latest router firmware (which I have updated too). So far I have had an hour and a half without any disconnections since uploading the BIN file but this in no way means my problems are solved only time will tell. Also I noticed that when the router connects to the Internet but I cannot ping any sites and the DNS servers are wrong.
EDIT: Nah its still not right, it was unplugged again this morning and when that happens its best to power cycle the router and unplug/replug the USB stick to get it going again.
EDIT2: Have now updated to the beta firmware data 25/01/11 posted earlier in this thread and I have turned off CD autorun on my stick.
EDIT: Nah its still not right, it was unplugged again this morning and when that happens its best to power cycle the router and unplug/replug the USB stick to get it going again.
EDIT2: Have now updated to the beta firmware data 25/01/11 posted earlier in this thread and I have turned off CD autorun on my stick.
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Update: I noticed that sometimes I would have a stable connection for hours then I would stop using the laptop and ther Router would disconnect from the Internet after 15 minutes idle time as per the setting in the Router. Then when it reconnected automatically the next time I used the laptop it would have the incorrect DNS servers auto assigned in the Router meaning the Internet would not work - I was unable to get to any sites or ping host names.
So I have now manually defined the DNS servers in the Router with the ones I know to be correct and I believe this should improve the reliability of the Router to some extent and may even fix the problem altogether. I will report back on this in due course.
So I have now manually defined the DNS servers in the Router with the ones I know to be correct and I believe this should improve the reliability of the Router to some extent and may even fix the problem altogether. I will report back on this in due course.
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Just my 2cents worth: Since Saturday my black Speedstick has been more stable, but plugged in directly into the PC. Via the TP-Link Router it is very unstable and disconnects a lot. The Sitecom router has the same problem. So, i will be dumping both those!