I am working on the greek version of WindowsXp Home SP2 (windows firewall disabled), using Firefox 22.214.171.124 (treat as WebBrowser) and Comodo Firewall Pro 126.96.36.1997. I connect to the internet through a Touchspeed router with the firewall on (block all outbound and open specific ports for applications such as MSN, Skype, U-torrent).
I also run:
PCTools Spyware Doctor 188.8.131.52 (trusted application)
Nod32 Antivirus 2.7 (trusted application)
NetPeeker 2.82 (trusted application) with its firewall and throttle services disabled. I only
use it to check the active connections, download/upload speeds and total downloaded/uploaded
bytes for each application/process.
The problem I face is only with firefox. (U-torrent downloads/uploads ok). I can surf the
internet without any problem, but I cannot download any large file or view any large streaming
video because it seems that the connection dies out. Checking netpeeker, it seems that the
problems starts when at some point firefox decides not to send out data (I assume a standard
method of sending a receive notification to the other computer). The download speed gradually
drops until it reaches zero. No time out message, no log of blocking firefox in either defense+
Skype works fine, other processes like Isass.exe, CLMLService.exe alg.exe and MemCheck.exe seem
to be blocked too as there have zero oubound/inbound bytes, but system processes, svchost.exe
and nod32krn.exe connect ok. The only log I get is from Windows operating system (blocked
inbound ICMP) when source ports are 3 and 11, and destination ports are 0, 1, 3, 10 and 13.
These events have different times from the time I request a file for download. Some times when I clear the cache of firefox the download (in streaming media) continues, other
My global rules are shown in the snapshot, but the problem is there even when I have no global
rules except for the last block on echo requests (a rule created by the stealth my ports wizard
of Comodo, set at "alert me to incoming connections).
I triple checked my PC for malware / viruses. Nothing (it is a recenlty formatted PC and the
problem was there from the start).
I tried to run firefox in safe mode, but the problem persists.
I tried to completely remove firefox from the rules and re-assign it as a web-browser allowing
its every action, but no luck there.
The problem also persists when I disable the firewall and Defense+, even when I exit Comodo, and
only disappears when I uninstall Comodo completely.
I haven’t found any similar problem so far… Any ideas?
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