WNIC Failing in 7800N ?

[Tomken]

Over that last couple of days when I've booted up, I've been getting a yellow alert on the WiFi icon in the system tray which clears after a few seconds, yet doesn't occur when I use my ISP supplied router with exactly the same settings and was wondering if this could be a sign that the 7800N's wireless card could be starting to fail.

Other than for the last few weeks, I've been using the 7800N since July 2011 so it's now out of warranty.

[billion_fan]

Have you tried to set a static IP to one of the wireless computers to see if the same issue occurs?

[Tomken]

I have my ISP supplied router hooked up at the moment but will give that a try with the 7800N sometime over the next couple of days and report back.

If the DHCP is struggling, how could that be resolved ?

[billion_fan]

I have my ISP supplied router hooked up at the moment but will give that a try with the 7800N sometime over the next couple of days and report back.

If the DHCP is struggling, how could that be resolved ?

You try and use the 'Fixed Host' option

[Tomken]

Not sure what's going on here.

A couple of months back I'd looked up my ISP's (TalkTalk) DNS servers and found that when the router and laptop were set to 62.24.134.1 / 62.24.243.2 it was knocking ~20 secs off my boot up time but recently, the Internet started dropping out overnight and just resyncing at ~5.4 meg instead of the ~6.5 that I had been getting and subsequent reboots didn't bring it back up and after reporting a fault to TT, they sent me a D-Link 3680 to use as they prefer to have one of their own routers hooked up while they troubleshoot.

Anyway, they sorted that and as the 3680 was out performing the 7800N I decided to keep it on, but then the drops reoccurred so I hooked the 7800N back up to eliminate the 3680 as I'd noticed from inSSIDer, the 3680 was auto dropping from 20/40MHz to just 20MHz and then over the last few days the yellow alerts started.

I set up the laptop as a Fixed Host outside of the DHCP range and it made no difference.

Changed the laptop to auto DNS without any change until I reset the 7800N to auto DNS and no more yellow alerts.

Tried it with the router set to Open DNS and they returned, so for some reason the 7800N now doesn't like being set to any DNS other than Auto as they also occurred when I fixed the router to the servers they were displaying when set to Auto.

This didn't occur with the D-Link 3680 when set with the specific TT DNS servers.

[billion_fan]

Not sure what's going on here.

A couple of months back I'd looked up my ISP's (TalkTalk) DNS servers and found that when the router and laptop were set to 62.24.134.1 / 62.24.243.2 it was knocking ~20 secs off my boot up time but recently, the Internet started dropping out overnight and just resyncing at ~5.4 meg instead of the ~6.5 that I had been getting and subsequent reboots didn't bring it back up and after reporting a fault to TT, they sent me a D-Link 3680 to use as they prefer to have one of their own routers hooked up while they troubleshoot.

Anyway, they sorted that and as the 3680 was out performing the 7800N I decided to keep it on, but then the drops reoccurred so I hooked the 7800N back up to eliminate the 3680 as I'd noticed from inSSIDer, the 3680 was auto dropping from 20/40MHz to just 20MHz and then over the last few days the yellow alerts started.

I set up the laptop as a Fixed Host outside of the DHCP range and it made no difference.

Changed the laptop to auto DNS without any change until I reset the 7800N to auto DNS and no more yellow alerts.

Tried it with the router set to Open DNS and they returned, so for some reason the 7800N now doesn't like being set to any DNS other than Auto as they also occurred when I fixed the router to the servers they were displaying when set to Auto.

This didn't occur with the D-Link 3680 when set with the specific TT DNS servers.

Which section are you entering your DNS servers??

[Tomken]

In Basic/WAN

Tms7800.PNG

[billion_fan]

In Basic/WAN

Tms7800.PNG

Try the DNS servers 8.8.8.8 and 8.8.4.4

[Tomken]

Yes, still getting the alert with Google's servers.

I had checked to see if it still occurred with the Fixed Host deleted and reverted to DHCP and DNS set to auto and it did, so did an ipconfig /all to get the Mac to reinstate the Fixed Host and saw that IPv4 was still showing the Fixed Host IP address.

Did an ipconfig /release and renew, rebooted but the alert was still there and only resolves as a Fixed Host.

[billion_fan]

Yes, still getting the alert with Google's servers.

I had checked to see if it still occurred with the Fixed Host deleted and reverted to DHCP and DNS set to auto and it did, so did an ipconfig /all to get the Mac to reinstate the Fixed Host and saw that IPv4 was still showing the Fixed Host IP address.

Did an ipconfig /release and renew, rebooted but the alert was still there and only resolves as a Fixed Host.

When you input the DNS server on your computer they should override the DNS servers entered in the router, (a quick test to confirm this, is set a static DNS to one pc eg 1.1.1.1 which we know if not a DNS server, then try and browse the internet, via domain name, it will be blocked proving the PC does overrides the DNS servers entered in the router)