Solved - Network scanning fails
Solved - Network scanning failsAdded by Yann Ormanns about 6 years ago
Hi everyone,
I am using tvheadend 4.2.6-62 on my Kodi HTPC (LibreELEC), and now I want to switch the setup to a 24/7 system. This system runs on Gentoo, and I simply do not manage tvheadend to scan the network successfully.
I use a Fritz!Box 6490 with Fritz!OS 7 as a Sat>IP streaming server - so I pass the argument "--satip_xml http://10.0.0.1:49000/satipdesc.xml" to tvheadend.
Aside my HTPC, I have tested a few versions:
- 4.2.7-17 on Ubuntu
- 4.3-1216 on Gentoo
- 4.3-1517 on Gentoo
Everyone of them is unable to get some data in while scanning the network, as the following log lines from the newest build show:
2018-11-02 17:56:07.851 [ INFO]:subscription: 0074: "scan" subscribing to mux "402MHz", weight: 6, adapter: "SAT>IP DVB-C Tuner #1 (10.0.0.1@UDP)", network: "DVB-C Netzwerk", service: "Raw PID Subscription" 2018-11-02 17:56:07.851 [ INFO]:mpegts: 610MHz in DVB-C Netzwerk - tuning on SAT>IP DVB-C Tuner #2 (10.0.0.1@UDP) 2018-11-02 17:56:07.851 [ INFO]:subscription: 0075: "scan" subscribing to mux "610MHz", weight: 6, adapter: "SAT>IP DVB-C Tuner #2 (10.0.0.1@UDP)", network: "DVB-C Netzwerk", service: "Raw PID Subscription" 2018-11-02 17:56:07.851 [ INFO]:mpegts: 434MHz in DVB-C Netzwerk - tuning on SAT>IP DVB-C Tuner #3 (10.0.0.1@UDP) 2018-11-02 17:56:07.851 [ INFO]:subscription: 0076: "scan" subscribing to mux "434MHz", weight: 6, adapter: "SAT>IP DVB-C Tuner #3 (10.0.0.1@UDP)", network: "DVB-C Netzwerk", service: "Raw PID Subscription" 2018-11-02 17:56:07.851 [ INFO]:mpegts: 362MHz in DVB-C Netzwerk - tuning on SAT>IP DVB-C Tuner #4 (10.0.0.1@UDP) 2018-11-02 17:56:07.851 [ INFO]:subscription: 0077: "scan" subscribing to mux "362MHz", weight: 6, adapter: "SAT>IP DVB-C Tuner #4 (10.0.0.1@UDP)", network: "DVB-C Netzwerk", service: "Raw PID Subscription" 2018-11-02 17:56:12.850 [ INFO]:mpegts: 362MHz in DVB-C Netzwerk - scan no data, failed 2018-11-02 17:56:12.850 [ INFO]:subscription: 0077: "scan" unsubscribing 2018-11-02 17:56:12.851 [ INFO]:mpegts: 434MHz in DVB-C Netzwerk - scan no data, failed 2018-11-02 17:56:12.851 [ INFO]:subscription: 0076: "scan" unsubscribing 2018-11-02 17:56:12.851 [ INFO]:mpegts: 610MHz in DVB-C Netzwerk - scan no data, failed 2018-11-02 17:56:12.851 [ INFO]:subscription: 0075: "scan" unsubscribing 2018-11-02 17:56:12.851 [ INFO]:mpegts: 402MHz in DVB-C Netzwerk - scan no data, failed 2018-11-02 17:56:12.851 [ INFO]:subscription: 0074: "scan" unsubscribing
My config under the newest build (the tuners have a slightly different config, because I tested the impact of the "specinv" parameter):
{
"tunercfgu": "Auto",
"tcp_mode": false,
"fast_switch": true,
"fullmux_ok": false,
"sigscale": 240,
"pids_max": 32,
"pids_len": 127,
"pids_deladd": false,
"fe": true,
"piloton": false,
"pids21": true,
"skip_ts": 0,
"disableworkarounds": false,
"device_uuid": "663d5d6c-f9f8-4bb4-84d4-444E6D2A2DDF",
"frontends": {
"DVB-C #1": {
"delsys": 0,
"transport_mode": 0,
"udp_rtp_port": 0,
"tdelay": 50,
"play2": true,
"grace_period": 0,
"teardown_delay": false,
"pass_weight": 1,
"specinv": 1,
"enabled": true,
"priority": 0,
"spriority": 0,
"displayname": "SAT>IP DVB-C Tuner",
"ota_epg": false,
"initscan": false,
"idlescan": false,
"free_weight": 0,
"remove_scrambled": false,
"networks": [
"3d276401e06bc0c924cf3e94b581833b"
],
"linked": "",
"type": "DVB-C",
"uuid": "783c66242e42be1959296f358a7668f8"
},
"DVB-C #2": {
"delsys": 0,
"transport_mode": 0,
"udp_rtp_port": 0,
"tdelay": 50,
"play2": true,
"grace_period": 0,
"teardown_delay": false,
"pass_weight": 1,
"specinv": 1,
"tunerbindaddr": "",
"enabled": true,
"priority": 0,
"spriority": 0,
"displayname": "SAT>IP DVB-C Tuner",
"ota_epg": false,
"initscan": false,
"idlescan": false,
"free_weight": 0,
"remove_scrambled": false,
"networks": [
"3d276401e06bc0c924cf3e94b581833b"
],
"linked": "",
"type": "DVB-C",
"uuid": "aca1f336b31c6552d43eb555ea1ca6b7"
},
"DVB-C #3": {
"delsys": 0,
"transport_mode": 0,
"udp_rtp_port": 0,
"tdelay": 50,
"play2": true,
"grace_period": 0,
"teardown_delay": false,
"pass_weight": 1,
"specinv": 2,
"enabled": true,
"priority": 0,
"spriority": 0,
"displayname": "SAT>IP DVB-C Tuner",
"ota_epg": false,
"initscan": false,
"idlescan": false,
"free_weight": 0,
"remove_scrambled": false,
"networks": [
"3d276401e06bc0c924cf3e94b581833b"
],
"linked": "",
"type": "DVB-C",
"uuid": "4ac81c649fd42d421cbabed680f64c0b"
},
"DVB-C #4": {
"delsys": 0,
"transport_mode": 0,
"udp_rtp_port": 0,
"tdelay": 50,
"play2": true,
"grace_period": 0,
"teardown_delay": false,
"pass_weight": 1,
"specinv": 2,
"enabled": true,
"priority": 0,
"spriority": 0,
"displayname": "SAT>IP DVB-C Tuner",
"ota_epg": false,
"initscan": false,
"idlescan": false,
"free_weight": 0,
"remove_scrambled": false,
"networks": [
"3d276401e06bc0c924cf3e94b581833b"
],
"linked": "",
"type": "DVB-C",
"uuid": "356e1cbe1d430d3bb6fcecdbcbac5fce"
}
}
}
What can I do to locate the cause for this problem? If any information is missing, please let me know.
Kind regards,
Yann
Replies (26)
RE: Network scanning fails
-
Added by Yann Ormanns almost 6 years ago
I finally got it working. It seems as one iptables rule was responsible for the problems - but I cannot figure out, which one. Although I allowed all traffic between my FritzBox and the PC, it seems that some traffic was blocked. Afterwards, I logged all blocked traffic and derived new firewall rules from that.
Thank you for your effort, Al Bundy!
Kind regards,
Yann
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