Question about Arris Touchstone 450a (CM450) Modem
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Posted on Jan 02, 2017
SOURCE: Blinking light on the DSL modem.
Unfortunately it sounds like the modem may need to be replaced. I had the same issue. Even after doing a complete shutdown, resetting all the cables, restarting the modem and then the computer, it still did not work. After you get the modem replaced, I would suggest you get a spare, possibably from e-bay, so if this happens again, you will not be without DSL Service.
Posted on Dec 29, 2007
This would indicate a problem with the cable connection, modem,or your ISP
Try replace the cable that comes from the RF connector to the wall outlet (use a good quality one)
Also if you have ANY form of splitter / divider in that line that was not supplied by your ISP for splitting a modem signal then remove it.
Check the output of the power supply for the modem if the psu is faulty then replace with a universal adaptor that can supply both the correct voltage and current (they are usually listed on the original psu eg. 9V 500mA)
DO NOT use any psu that cannot meet those two numbers a 300mA supply will not be suitable but one that is slightly higher eg. 650mA will.
If you still have problems then contact your ISP for a replacement.
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Posted on Aug 19, 2009
There could be a couple of causes for this issue. Your internet could be degraded when it gets to your house causing disconnects. You will have to contact your Internet Service Provider in order to have them resolve this issue. Normally, they will replace splitters and may even replace lines outside of your house. You could also be having problems with the modem directly. The may replace this. You could also try to upgrade the software on it. Click here for the update page for Arris.
Typically, I recommend you unplug the router, plug the computer directly in the modem and see if you still have the problem. If you still have the problem then you know it is just the modem. If the problem resolves itself then you know the most likely culprit is the router.
I would also recommend that you update your router firmware as well. Do a google search for the brand name of the router and go to the companies website, look in the support/downloads section for updated software.
--If possible, try a different Ethernet port on your router. You may have a bad port.
--Take out and reinsert all Ethernet cables on your network. Loose cables can cause disconnects.
--If possible, replace the Ethernet cables. Bad cables can cause this.
Lastly, you could be having an issue with the Network card(NIC) on your computer. Network cards are either built into the modem or external(a card you insert into the motherboard). Using the process of elimination and the steps above, you can hopefully narrow down the problem to one specific component of your network.
Let me know if you have any questions.
Posted on May 17, 2011
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