Linksys router no longer assigning DNS properly

[the FooL]

Lately, the PCs I had using DHCP wouldn't actually access the internet right after boot.
It would take several minutes to start working.

I traced it to the router not assigning the DNS servers properly.

The router can still assign IP addresses properly, it's just the DNS that isn't being set up properly.

Any ideas?
It's running the latest firmware already.

 

[tweekah]

Write down your two DNS servers and hard code them in your TCP/IP settings. Voila

 

[the FooL]

That defeats the purpose of DHCP.
Especially when the provider decides to change their DNS servers (which has already happened before).

 

[tweekah]

You can still hard code DNS servers on the computers NIC and have DHCP. Use one DNS server from your provider and and one from somewhere else.
If you don't like that route, then replace the router.

 

[JDMnAR1]

I assume you have reset your router and all that?

 

[avi85]

I had the same problem, my ISP changed the DNS server address and for some reason my linksys router would stick with the old ones no matter what so what I did was go to the dhcp menu in the router setup and there you can define the DNS addresses you want it to use even if they are different than the ones it gets from the ISP.
And voila, problem solved!

 

[the FooL]

Yep, I already restored to factory defaults and still had the problem.
Seems like the router is developing problems with setting up the DNS info to the PCs.
Even after setting the DNS address on the router, my Nintendo DS needs me to set the DNS to work.

 

[rasczak]

not sure if it's router based. try ipconfig /flushdns; then ipconfig /registerdns

sounds like all you really needed was to flush your DNS cache.

 

[the FooL]

tried that. No luck.
Also, if I reboot the machine, the dns should have been flushed right?

 

[rasczak]

what kind of router? make/model if you have latest firmware upgrade or not

are the trouble PC's wired/wireless?

how long has the issue been going on?

have you tried hard coding another DNS server as opposed to your isp's?

do you have a DNS server setup at home that you have your PC's pointing to first?

have you called your isp to find out if they have an outage?


If i thnk of more questions i'll post.

have you tried to connect the trouble PC's directly to your cable/dsl modem and connect to the internet that way? if how did the connection drop still or not?

if so, then it could be A.) your modem or B.) your isp.

if not, then your router could be the issue.

joe

 

[the FooL]

Well, I tracked down the problem (but not after buying another router).

The primary DNS address my PC kept picking up seemed oddly familiar, then I realized it was the static IP I gave to the NAS.
Seems that the NAS was advertising itself as a DHCP server (even though I disabled it).

I went to the NAS setup and reset the configuration (made it use a dynamic IP address instead).
Unfortunately, forgot to check the DHCP setting before I hit reset.

However, everything was fine afterwards.
Oh well, least I found the excuse I needed to upgrade to a gigabit router... though it'll only be useful when transferring between the PCs I own.