No internet access

[johnbarry]

All of a sudden I have no internet access on my ethernet.

I have checked the cables and they seem ok.

My router has 2 ports one goes to sky and that’s fine, the other goes to a netgear.

The light is flickering on the router (to the netgear) the light (input) on the netgear is on. The light (output) from the netgear is on the light (input) in the computer is on, all the lights seem to flicker slighly.

Yet the rig internet status say unidentified network no internet access.

I have tried cutting the netgear out (direct from router to rig) still nothing.

All I can think now is Toyah Wilcox

PS I am writing this via WiFi from the router.

 

Cheers
John

[Margarita Stine]

Have you tried to hard reset it?

[wasbit]

This happens quite often when Openreach are working on the roadside box.

You could try Complete Internet Repair

link 

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Regards
wasbit

Rig 1: Optiplex 3050 SFF
Rig 2: Asus ROG G20CB (rebuilt wreck)
Rig 3: HP Elitebook 8440P

Dear Starfleet, hate you, hate the Federation, taking Voyager. - Janeway

[Ed P]

I would be very cautious about using the “Internet Repair Kit”. John obviously has not lost Internet. It is a Netgear router issue. Switch the Netgear and your Router off for 30 seconds, switch off your PC then switch back on.

The ‘flickering lights’ is symptomatic of the router/Netgear getting into a ‘deadly embrace’ somewhere/somehow. The hard reset route noted by Margarita nearly always cures it.

[johnbarry]

Welcome Margarita – thanks  I did try a hard reset and it didn’t want to know.

Thanks Roger I had a look on your link, it frightens me with protocols winsocketc.

I did try a network reset, no go.

Staying cautious I will leave the repair kit (as Ed avised)

Reading your post Ed I did switch off last night for a couple of mins.

It made no diffrence.

I came on just assumimg it’s still using my router.This is after I left all of it off last night.

I have no wifi on rig 2 (which didn’t work as this on ethernet) I started it and it connected (via ethernet)

I look at this and realized it’s working on ethernet.

So it seems it’s fixed, it must have needed a longer switch off (Ed) than 30secs.

It’s been off for 7-8hrs and now all seems back to normal I didn’t even notice.

Thanks all for the tips, much appreciated

 

Cheers
John

[Ed P]

I sometimes see this ‘flickering’ with my broadband router->Netgear switch (as noted by Wasbit this is normally when BT is screwing around with their boxes). Just to make certain that the BB router is not trying to handshake with the Netgear I switch off the lot for 30secs.

The flickering is symptomatic of a failed handshake, but either of both ends could be involved in the failed handshake, so it is best to do a complete hard reset of everything. If you needed more than 30secs then that means your DHCP handshake between your PC and your BB router was also screwed up. (offing the BB router usually fixes this as well)

[johnbarry]

Cheers Ed

I dod off the BB router for a min or 2, it didn’t help, it was after the long off it went ok. Ihaven’t a clue how long off it would have took but 8hrs did the trick.

Cheers
John

[Richard]

I have just had a period of no internet but before I did anything too wild I had a look at the router to see what angle it had on matters. Interestingly it was very responsive, faster than perhaps usual and reported that it had no WAN IP address and nothing was moving. I thought about a hard reset but before I could act all was back to normal.

I agree that Ed probably hit the nail on the head when he suggested something screwed with the DHCP this can effectively mess up access in some cases for all PCs and devices and in others just for some. It can be important to ensure that when you switch on after a ‘recovery break’ that not only enough recovery time was allowed before restarting but that a thought out order is followed Phased restarts might be wise to allow each device to stabilise it’s own working before it receives demands from other devices. This was the case with one long discarded router which became marginal for the demands it faced as the number of connected devices increased.

[wasbit]

My internet sometimes goes off about 1.30am. 1st test is always see if there’s a dial tone then phone 1471 just to make sure it’s working. I’ve always presumed this happens because either my ISP or BT is doing some work on the lines which loses the internet.

Interestingly this test resulted in finding out that the phone line wasn’t working although there was still internet access. The Openreach guy that fixed it told us there was corrosion on a below ground connector but because the second wire didn’t have corrosion the internet still worked. So apparently a phone needs two wire connected but the internet only one.

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Regards
wasbit

Rig 1: Optiplex 3050 SFF
Rig 2: Asus ROG G20CB (rebuilt wreck)
Rig 3: HP Elitebook 8440P

Dear Starfleet, hate you, hate the Federation, taking Voyager. - Janeway

[Alan Wood]

Hi Wasbit

Internet needs two connections. You can’t have a circuit without two. Can’t explain the situation you describe with any confidence. It may depend on whether you are connected by ADSL or Fibre.

[Richard]

I have heard about odd effects like these. It is true that a circuit does require both legs but sometimes different frequencies can cross barriers that others will not. Remember that ADSL is carried by different frequencies to voice which if I recall does require a little more DC energy. Having said that noise, a normal result of poor connections plays havoc with both voice and other signals so it is a real non-jackpot lottery as to what will happen in any given case. Sadly it is probably impossible to explain apart from saying weird stuff sometimes happens. One leg plus earth used to be a real odd ball case that happened in the past and might still cause issues.

[Author]

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