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Can ping, email; can't browse http

Discussion in 'Networking' started by tgtsg, Jan 25, 2007.

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  1. tgtsg

    tgtsg Thread Starter

    Joined:
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    I have this few-minutes-after-Windows-started-then-browsing-http-fails problem, on Win98 First Edition. Hope that long name summarises the problem: browsing works initially for a few minutes after Windows started, then fails. Afterwards, browsing to https still works, POP email works, Ping works on both name and numeric IP address forms. No proxy, not running server app - as far as I am aware.

    So it's a destination port 80 problem, and not a DNS problem.

    This problem occurred on two separate occasions, under different setups. Should provide some contrast to eliminate possible culprits:

    First setup (Oct 2005) -

    1.1. Cable broadband, with cable modem and separate Belkin wireless router. Win98 desktop PC on wired Ethernet connection.
    1.2. Zonealarm (free version) autostarted. No problem browsing.
    1.3. Restarted Win98 with other firewalls such as Kerio and Tiny replacing ZA. Got browsing problem.
    1.4. Went back to using ZA.

    Second setup (recent) -
    2.1. ADSL (UK) broadband, D-Link DSL wireless modem-router. Win98 desktop PC on wired Ethernet connection.
    2.2. (same as 1.2, with latest ZA free version for Win98)
    2.3. (same as 1.3, but with Kerio only)
    2.4. Exited Kerio (so then no software firewall running), didn't help.
    2.5. Tried IPCONFG Release/Renew, didn't work.

    With no software firewall being auto-/manually run, browsing problem is as described. So it's not the software firewall (ZA or Kerio). Nor is it Cable/DSL, nor(?) the router. And nothing to do with wireless.

    I then started ZA manually. *** Browsing problem gone! ***

    Even after I exited ZA, and with or without starting Kerio, browsing still continues working.

    Now I manually start and stop ZA just once right after Win98 started, then start Kerio before downloading/browsing.

    Questions (please note it's Win98 non-SE):
    1. Why does browsing to http only works for a few minutes initially (no software firewall)?
    2. Why should just briefly running ZA fix the browsing problem (contrary to other people's problem with ZA)? Does ZA alter my networking config when it runs? Does it leave something running even after exiting - I couldn't find anything ZA-related using various process/DLL viewers (but then neither could I find TClockEx which is in fact running - maybe I need a better process/DLL viewer).

    Thanks in advance for your help
     
  2. tgtsg

    tgtsg Thread Starter

    Joined:
    Jan 25, 2007
    Messages:
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