Suddenlink → Cisco DPC 3825 router fails after last nights update

Last night SL ran some kind of updates. Now I cant get my cisco dpc-3825 to work properly.
Connection seems to work fine however I get a failure of response from DNS server.
After they blamed my computers awhile and set up truck roll I had the activate the modem side of the Arris modem and I am back online.

Anyone else even have this cisco modem on suddenlink?
Seeing this problem?

Suggestion?

All I can say is boo on Cisco and Suddenlink. A DOCSIS 3.0 compliant modem should just work without a bunch of 'updates" from the ISP.

It didn't require an update, it required (a second) activation after ISP maintenance.

But modem/router combos often are junk. Sounds like this is one.

Followup

Tried to get this modem up and running again with truck roll. Good signal
4 dl channels
1 ul channel.
good IP
But the computers still says fails to connect to ISp dns server.

Tech says they have seen this with other cisco modems with wireless. We both think its something on SL end. He said they are working on it.
Guess I am stuck buying a new modem.

Just manually put in OpenDNS's or Google's DNS addresses on the router see if it resolves it.

no way to do it on this modem. It has 3 valid dns server IP addresses. Why it can not connect is beyond me.

Yea! Just like Windows OS should just work without a bunch of updates.

Technology changes...software changes...bugs are found...updates are needed.

Hello PLK. Are your computers using the dpc-3825 as their DNS servers or do you have them set to the actual public DNS servers?

If your computers are pulling DNS from the router, try setting them to the Suddenlink or Google DNS servers and see if that fixes your problem.

If that doesn't fix it, can you send me the following tests:
presuming you're running windows...run these in DOS

nslookup google.com 208.180.42.68
nslookup google.com 8.8.8.8
ping google.com
ping 208.180.42.68
ping 8.8.8.8

Really, and that's why almost all business class Cisco routers all run IOS 12.4 (circa 2001-2004) instead of IOS 15.1 (circa now)?

That would also have to take into account financials for upgrade fees and then man power and actual know how to upgrade it and operate it. There is a lot of IT out that that I wouldn't even want working at GeekSquad.

Back to OP, I would suggest looking for a modem and router separately. Better performance and easier to troubleshoot with.