+ 0 Votes Comcast and wireless Tig2 7 years ago Let's just go to the bottom line- I have the same problems with Comcast in MN. My solution was to wire the connection. Wireless from Comcast is as useless as a screen door on a submarine. This is why they won't even try to support you if there is a router between you and the modem. "They do not support this configuration". A couple of things that you can do- kill power to both the modem and the router. Wait a minimum of one minute. Plug in the modem. Let it POST and go to a normal state. Now restart your router. Now boot up or reboot. At worst case, the software "restart" will want to run. That is okay. Your connection is verifiably hosed if you can ping your gateway (router) but not your DNS server (on the Comcast side of your connection). After several heated arguments with Comcast that required them to send multiple service techs to my home, they finally admitted that there had been a major outage in my area- probably a combination of the cold and their refusal to upgrade their infrastructure- that had lasted several weeks. And, incidentally, the wire to the house that they installed while the house was being built, had been installed wrong. If Comcast is the only game in town, play it using the formulae above. Other options? DSL is just as bad. Good luck! + 0 Votes Guessing here. Ron K. Updated - 4 years ago My router has to have an IP address assigned to it because the default router address is the same as the modems, 192.168.0.1. <br> Assigning the router's IP adress to 192.168.1.1 enables the router to work properly as long as the network connections on the PCs don't have static IP addresses unless they're within the range of the new network address. <br> Choose to automatically assign network card IP addresses. Leave the Gateway and DNS sever area's empty or choose automatic.<br> Without your router make and model number I can't look up the manual to see what page you have to change. I suggest getting your manual and/or reading the router setup section. + 0 Votes Try a router restart mjd420nova 7 years ago From your wireless connection to the router, do a restart of the router without shutting anything off. This should clear up the problem. I've experienced the same problem and found it to be others getting into the wireless. Be sure to capture your MAC address for your machine, enter it into Blocking and lock out all others. + 0 Votes try this sreya_sabrina 7 years ago 1.power off ur modem,router and ur computer for 2 min. and after u power them up ...try going online.. 2.dont do a mac filteration on ur router.. 3.do the wireless profile configuration once again.. + 0 Votes Wireless Router Problems --using Comcast danpeoples 6 years ago Comcast has had some major issues lately and instead of fixing them properly they have reacted by locking down there service. Now they are purposely blocking any type of router connected to there service. I have two wireless routers that worked with comcast until a week ago. If I connect those routers to a friends DSL connection they still work fine but not with comcast. Comcast will only work with a PC running DHCP connected directly to there equipment. The other thing you can do is to connect your PC to the comcast router and run ipconfig /all to get the IP information and then set your router to the same static IP settings and plug the router into the Comcast modem. Your router will work with the static IP address until the lease expires after a couple of hours. + 0 Votes It can be fixed! ajewell1 6 years ago 1st- if you have vista- uninstall the network adapter. don't re-install it. Let it do it on it's own, which will put the settings back to working w/comcast. If you choose re-install it just puts the same thing back on the network, rather than searching for the correct settings. I have a plain 4port belkin wireless router and it's fine. But it took a million phone calls to comcast, toshiba and finally microsoft for me to get the correct info. Comcast is clueless- good luck + 0 Votes Spoof the MAC address of your PC NIC. 1bn0 6 years ago The modem will think your router is your P.C. http://techrepublic.com.com/5208-6230-0.html?forumID=101&threadID=224785&messageID=2282657 + 0 Votes Comcast Router TruelyHateComcast 4 years ago I had the comcast router and it was not working with our linksys router so Comcast told us to buy their router, and once again, we are having the same freakin problem.