We have Hamachi installed on 4 servers and numerous clients to connect to the windows servers via RDP
One server has recently started going offline on hamachi - as if the client is turned off via the "power" icon. Logging on locally shows the client is "off", and clicking it is all fine.
Product is paid for and licensed and should be OK! it is OK on other servers.
Client is up to date, and has been removed/reinstalled via different methods.
Any suggestions on where to go from here? Any log files? Any settings to stop client going offline?
Server is Win 2008
The log file has some interesting bits in - this is *pronbably* when it vanished. It mentioned a netgear UPnP device - but I'm *certain* this servrer is plugged into an unmanaged basic netgeat GS108 type switch, and from there to a Draytek router. No managed netgear I'm aware of
(though will look under desks next time I'm there!)
04/05 17:59:25.853  tcp: http socket 760
04/05 17:59:25.853  pnp: cancel(034f7750)
04/05 17:59:25.853  pnp: 1 active requests, waiting 2000 ms ..
04/05 17:59:25.857  pnp: received 00000000 response part, 562
04/05 17:59:25.857  pnp: received 00000000 response
HTTP/1.1 500 Internal Server Error
SERVER:Linux/2.6.12 UPnP/1.0 NETGEAR-UPNP/1.0
04/05 17:59:25.857  pnp: 034b92c0 request FAILED, rc -2
04/05 17:59:25.954  pnp: term() completed
04/05 17:59:26.244  tap: device found, status enabled, running
04/05 17:59:26.245  vpn: disabling tap device ..
04/05 17:59:26.245  tap: do_status(ROOT\NET\0000, 0) ..
04/05 17:59:27.896  ses: on_ip_change()
04/05 17:59:29.094  ses: on_rt_change()
04/05 17:59:29.220  tap: SetupDiCallClassInstaller() ..
04/05 17:59:29.325  ses: on_rt_change()
04/05 18:00:02.646  tap: do_status(), rc 1
04/05 18:00:02.647  tap: job [Hamachi, JOB_set_tapdev, 0] done, result: success
04/05 18:00:02.647  vpn: on_set_tapdev(Hamachi, 0) -> ok
04/05 18:00:02.648  vpn: domain [Hamachi] -> 'VPN_disabled'
04/05 18:00:02.648  dbg: setup_vpn_domain [Hamachi]
04/05 18:00:02.648  dbg: vpn_domain::config - [Hamachi]
04/05 18:00:02.649  tap: job [Hamachi, JOB_set_tapdev, 0] start thread ..
04/05 18:00:02.649  tap: job [Hamachi, JOB_set_tapdev, 0] thread started
04/05 18:00:02.650  tap: set_tapdev(Hamachi, down) ..
04/05 18:00:02.650  tap: list_netdev_win32() ..
04/05 18:00:02.767  tap: device found, status disabled, not running
04/05 18:00:02.767  tap: already in a requested state
04/05 18:00:02.768  tap: job [Hamachi, JOB_set_tapdev, 0] done, result: success
04/05 18:00:02.768  vpn: on_set_tapdev(Hamachi, 0) -> ok
04/05 18:00:02.769  dbg: setup_vpn_domain [Hamachi]
04/05 18:00:02.769  dbg: vpn_domain::config - [Hamachi]
Hmm interesting, have you tried seeing if the Hamachi service itself crashes or if it's the whole UI. If it's just the service that stops you might be able set the service to recover.
services.msc > Properties > Recovery
No, service running OK, and UI was actually running, but just "powered off". Same on both servers. Restarting service made no difference. Only was was to click "poower on" button on UI
Do you know if this can be done from a script/tool/command line?
Interestingly, on the server I posted the log yesterday, I did a LAN scan and found an old netgear router being used as just an AP - e.g. wifi AP connected to LAN switch. No broadband connected. It was on a different subnet and in theroy the server should not know it exists, but it appears the router was advertising uPnP, and indeed there were uPnP sessions grabbed by the router from the server (!). So I've disabled uPnP on that router as if it was getting in the way, of course something would break. If it still crashes I'll get it unplugged. The log above mentions Netgear uPnP hence feeling confident.
The other server that powers hamachi off has a different log and no mention of a crash so can't figure that one out....
The Server near the netgear box has gone off line again , but no way to connect to check teh logs. Argh.
Oh - and lovely getting support from LMI - zero response from a support email! Thanks.
We have the same on our client computers. Hamachi poweroff himself. Only with a Power-on click it logged on again. I also don't get it why there is a power on/off button if you run hamachi by services. The services run, but a client can overrule by clicking power-/loggoff button. Bye bye connection.
We also asked support to change this or make a command option to auto poweron hamachi interface we can builld in a script. But no support from here, and we also have a paid account with 999 clients.
have the same Problem spread over many Companys , some Clinets and Servers switches semselfes to Offline like somebody Push the Power Off Button. Everything is Licenced and Paid. This is a Often Common Problem.