Bizzare internet access problem
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Bizzare internet access problem
22-09-2007 6:06 PM
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have a problem with internet access. I am running 3 desktop PCs and a laptop through a router. They have all worked fine for a long time. Internet access is fine on most of them, however, on the main desktop I use I have recently encountered a problem whereby it can connect fine for a few minutes, but after that it seems to only access a couple of selected sites, eg my world client server at work, or a site called comunified that I use for texting. In both cases these are sites that I have to log in to.
Others, such as Google or BBC or Force 9 or the our bank, it just says it can't find the server. It is still connected to the net, because I can send and receive emails. Has anyone any ideas what might be happening?
The problem PC in question runs on Windows 98 and has AVG antivirus. It's worth noting that one of the other PCs which is fine is also 98 with AVG.
Re: Bizzare internet access problem
22-09-2007 6:19 PM
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Re: Bizzare internet access problem
22-09-2007 8:12 PM
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when you are getting 'page not found', try to access Google by typing 64.233.187.99 in the browser address bar (or 212.58.240.32 for the BBC).
If it works, you do have a DNS problem. Either your access to a DNS server is failing (wrong or no DNS server address; access blocked by firewall; ...) or your DNS cache is corrupt. Although the cache is supposed to be flushed automatically, you can try to force a flush with (from the Run... command line):
ipconfig /flushdns
(I think this is valid on Win98 but my Win98 experience was a long time ago)
Re: Bizzare internet access problem
23-09-2007 11:13 AM
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Re: Bizzare internet access problem
23-09-2007 11:53 AM
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Re: Bizzare internet access problem
23-09-2007 12:58 PM
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Re: Bizzare internet access problem
23-09-2007 5:08 PM
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Re: Bizzare internet access problem
23-09-2007 5:55 PM
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Re: Bizzare internet access problem
23-09-2007 6:12 PM
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I remember having this problem before and it would work fine in safe mode, but can't remember off hand what the solution was.
Re: Bizzare internet access problem
23-09-2007 6:30 PM
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Re: Bizzare internet access problem
24-09-2007 8:08 AM
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If you are, try disabling that too.
Have you also tried a factory reset of your router - usually a pin-hole somewhere that will reset all to default (it'll mean putting all your PN details in again) - just in case it's a router config issue somewhere?
Re: Bizzare internet access problem
24-09-2007 5:25 PM
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I use AVG anti-virus and have tried with it switched off and even de-installed it without any luck.
I don't run a separate firewall, but just use the one built in my router which is a Netgear DG834PN - I have tried turning that off, but still get the problem.
I've also tried the factory reset of the router now - I hadn't thought of that, so thanks - but still no luck.
I appreciate the help that's being offered. Any more suggestions will be gratefully received because this problem is giving me a serious headache.
Re: Bizzare internet access problem
24-09-2007 8:26 PM
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1. Make sure the address was outside the range dynamically assigned by your router (i.e. outside the pool size). Assuming it's a router with addresses in the range 192.168.0.x then something like 192.168.0.200 should be safe (and avoid conflicts). Enter 255.255.255.0 as the subnet mask.
2. Enter PN's DNS servers manually on the DNS Configuration tab
Servers are 212.159.6.10 and 212.159.6.9
3. Enter your router's IP address (i.e. 192.168.0.1 if that's what your router uses) as the default gateway on the gateway tab.
This page may help. (BTW Don't enter anything in the domain name field when entering DNS servers - leave it blank. The Host field can be your PC's name.)
Apologies if I'm telling you stuff you've already done but I've seen many people forget about the default gateway!!!
If you've changed the IP range used by your router away from the defaults (e.g. to 10.0.0.x) you'll need to substitute the appropriate values above.
Edit: Router default gateway IP and default IP range after checking router manual for DG834PN on Netgear site.
Re: Bizzare internet access problem
24-09-2007 10:21 PM
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The only other thing I can think of is whether I need to assign static IP addresses to the other 3 computers on the network too... what do you think?
Or any other ideas?
Re: Bizzare internet access problem
24-09-2007 10:39 PM
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I have no hard theories as to what is wrong Spark but my next move would be to back up the PC drive then roll back the PC with system restore to a date well before the problem appeared and see if it magically goes away.
If it does that might give some clues, an OS update or an application change or addition.
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