sing its internet connection, but not its connection to the LAN. Cycling th= e connection by physically unplugging and plugging it back in fixes it ever= y time.
h support, physically checked out all the wiring, etc.
LAN and 7845i are on it as well, has a lot of static on it. All the phones = have filters on them, so its not the DSL bleeding over.
Noisy DSL line could do it and interfere with packet transmission. also make sure your not losing power for few seconds during night router,switch etc should be on a UPS to keep power smooth to equipment this is a very common problem with IP cameras as well.
I've got a 7847i in 4204 emulation mode, and for some reason, it keeps losing its internet connection, but not its connection to the LAN. Cycling the connection by physically unplugging and plugging it back in fixes it every time.
I've checked all the LAN settings, telnetted AlarmNets servers as per tech support, physically checked out all the wiring, etc.
The only thing I can think of is that the line the DSL, so of course the LAN and
7845i are on it as well, has a lot of static on it. All the phones have filters on them, so its not the DSL bleeding over.
Sound likely to you? Any other reasons such a thing would happen? Help a brother out.
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seen problem where a smal router would freeze up till someone disconnect one network wire from it then autonegociate would fire back up the device, so knowing what he discconect will tell me where is the problem..
losing its internet connection, but not its connection to the LAN. Cycling = the connection by physically unplugging and plugging it back in fixes it ev= ery time.
ech support, physically checked out all the wiring, etc.
e LAN and 7845i are on it as well, has a lot of static on it. All the phone= s have filters on them, so its not the DSL bleeding over.
a brother out.
Sometimes you'll find that there's just "something" about a particular router that doesn't jive with something on YOUR network but will work without a hitch on another network with different components. Go figure!
"Jim" a écrit dans le message de groupe de discussion : email@example.com...
Totally true, had once a big argument with a network specialist...or so... telling him that his 3com switch had a non compatible auto negociate with my DVR so I could not connect it directly to his switch, the only way to make it work was if I used a small switch (d-link 4 port) between the dvr and
the dvr was setup to 100mb full duplex and the switch was allways detecting the dvr as 10mb full duplex.. damn it was hell to make him understand that autonegociate doesnt allways work..after 3 days of email and visit on site (he didnt want the dlink switch to stay there) he finally reprogram the port on the switch to be fix at 100mb full duplex..all was well after that..
One other time a customer was using a small network ionterface from dsc to do local and outside download for a pc4020 and dsl3 for user..
the customer was complaining that he was not able to connect to the device during the day.. just at night.. That was very strange.. On site I pluged my laptop and started sniffing the packet on the network cable that was going to the device..there was about
30mb/s of broadcast packet going to every computer on the network(broadcast packet are data sent to all device on a network...) But the catch was that the device was a 10mb/s half duplex old thing.. try to send 30,b/s to a
10mb/s device you will overload it and you wont be able to communicate with it.. The network guys told me that it was impossible to have that much broadcast on there network. so I made them download ethereal (now wireshark) and they were not knowledgable enough to understand what there were looking at..
I had to bring from the shop a laptop I used to debug real nasty problem on network that had computer associate port sniffer ( A damn good program but a bit pricey) then with a pie chart diagram of the packet received on that computer for 10 minute they did understood the obvious..
Know what was all this broadcast stuff.. Radio station.. 5 or 6 people were listening to some radio station over the internet..all different one. Usely it should not have created any problem. But here there proxy server for the network were converting Unicast packets to broadcast packets...(Unicast is a way to send only one packets over internet and have it restransmit to every one at once that ask for it..so radio station dont have to send there data to 30000 pople at once (think of the bandwith needed for that!!!)
So networking is a strange world.. anything and the inverse can happen and you need some really good alarm tech to understand it..
Sounds like you get into it a lot deeper than I do.
I'm more of a trial and error trouble shooter and if I can't figure it out, call the manufacturer tech line. Only do residential and small business simple network setups. Router, maybe a switch or two, a few computers. I've networked a couple of home automation/whole house audio/video systems. Always setting up from scratch so there's not much trouble shooting to do. Most of what I do works the first time so I must be doing something right.
I don't know what "regulation" would have to do with training but the way I see it around here, there's a total lack of training in basic IP networking skills. What I believe is the problem is a clash of traditions. For as long as I can remember ( and that's a pretty long time) since the alarm trade is hardware based, manufacturers have offered free seminars on installation techniques in the hope that you would use their products. In the IP trade, they don't have any actual hardware to sell, so the tradition has been, if you want to learn about it, you have to pay for it. So, now, since the osmosis of the IP trade into the alarm trade has been taking place, the seminars that are being offered fall into the $150 to $250.00 range and alarm companys and technicians aren't going to pay that kind of money to get something that has always been available free of charge. Somebody has got to smarten up and you know it's not going to be the alarm installation companys. Thus it's going to take a reeeealy long time before this gets to be routine in the trade.
"Jim" a écrit dans le message de groupe de discussion : firstname.lastname@example.org...
Well regulation here state that every one heve to do 6000 hour as an apprentice before being a tech, in those 6000 hour they hae to do some class training, so we have to offer them sone training..
So all those training are also available to the tech, and the best part of it, its free for the tech, they even have there expense paid for to be there..(in fact its not realy free, the boss pay 1 cent by hour worked for all the poeple working in the construction business in the whole province.. with 140 million worked every years, the pot got pretty high and we have a lot of training availble..
The required training is a good idea. However, if it has anything to do with unions, if what I've seen down here is any example, all the training in the world hasn't made but only a handfull of electricians any smarter than a brick. All of the education they are required to have, hardly qualifies most of them to install a wall outlet. It's only due to the political power that the unions have that gets them qualified to install alarm systems without having to take courses and take a state test to qualify for a state alarm license. Yet only one in 50 knows what a door contact does. What good does the requirements and hours of training do if it isn't absorbed? There is no enforcement and anyone can get away with what ever they did before only now, the legitimate alarm companys get to pay the state for their license. There are just as many non licensed companys as there used to be and if you report it to the Dept of State, they don't have any way to go out and stop them. All they do is license, not enforce. Since it's a state law I can only guess that we'd have to call the State police and I'm sure they'd be right out there trying to arrest all the non licensed alarm companys they could find ...... just as soon as they finished their doughnuts.
I know the feeling Jim..Here licencing is enforce and there are poeple paid by the CCQ
to go around and ask permits and licence to anyone working in the construction business..
But since alarm is a something done very quick and often take less then a day to do, its not easy to catch the bad guys.. So I have to go around find them and call the inspector on site... Let me tell you that my 6 foot 240 pound body is helping ensure that every one stay cool.. ;-) but I still cary on me my pen camera to record the one that want to provide me with knee that bend the other way and the one that want me to show a new smile with less teeth ;-)
As our friend in Ottawa stated there is also a new law that ask for anyone doing an alarm job in here to cary a permits that state good conduct (no crminal record and such thing).. That law is pretty cool since it become a criminal offence to do so..So now I will call the cops on those job site ;-)
Maybe you should pay Robert a vist and see if he can advise you where to buy a "pen gun" instead. That's not a job I would want around here. For $50.00 and a six pack they could hire some Honduran to make sure you never go home again. And I have no doubt that for not too much more they'd never even find you again. You'd be feeding the fishes ...... in very tiny pieces.