Question

How can you disable TeamViewer from using/reserving port 80? I am certain in the previous version <v4.1.6 there used to be a radio button option in "options" which disabled it from needing it, but now I cannot find it.

Is port 80 serisouly required by this remote desktop app? It is conflicting with IIS on our development server and becoming a real pain.

Thanks all.

Answer 1

Did you enable the Direct-In Modus? You can disable it in

   Options > Advanced > Network > TeamViewer DirectIn check

From the manual, page 59 (PDF):

Check Opens a dialog where the availability of TeamViewer is checked. The DirectIn Ports 80 and 5938 do not have to be opened , however, TeamViewer can use these ports - if available - for establishing faster connections.

Answer 2

1. Open port 5938 (TCP) on your firewall.

2. Change the following registry keys.

   • [HKEY_LOCAL_MACHINE\SOFTWARE\ TeamViewer\Version4] Key ’GatewayAllowed’ set to 0 * [HKEY_LOCAL_MACHINE\SOFTWARE\TeamViewer\Version4] Key ’ListenHttp’ set to 0

Answer 3

The DirectIn check merely checks whether port 80 is forwarded through your router, it does not stop hijacking port 80. There is a registry change that you can make (two values need to be changes, one obvious, one non). I don't have the details with me, but if you telephone TV tech support, ignore their "this is just how it works" and insist on talking to a tech, you may be able to get it. I'll post the changes as soon as I get to my own computer.

Answer 4

my teamviewr's directCheckIn is not checked but it's still using port 80 when http://127.0.0.1 is entered into firefox, it says "This site is running TeamViewer"

how to turn off it? i need to run apache at 80

Answer 5

Starting the Apache server before teamviewer seems to solve this problem.

Answer 6

But if your web crashes TV will steal the 80 again, so it SUX !!! There is a listenHTTP reg. entry that you can kill, also start you web as service. All they use port 80 is for stating that "TeamViewer is cool and this site uses it!" The file is packed (UPX) and checksumed so it took me like half hour to just unpack the exe, and debug it, so i killed the evil at it's root, but come on, it would be easy to just allow the user to choose. You can always move your web server to another port, but come on, also there are some strange stuff going on in the TV process, some strange VPN connections are established sometimes, and there is a "backdoor" type entry by using just password ( at least it seems that way ) ;)

Answer 7

i went to windows firewall and unchecked team viewer in exeptions (not team viwer remote..) and tried it.... it worked for me

Answer 8

how to change teamviewer usage option ?