MgCamd Share Not Opening: Fix Guide (OSCam/CCcam)

If you've landed here searching for mgcamd: share not opening решение, you already know the specific hell of watching a green connection status while your channels stay completely black. The line looks connected. MgCamd isn't crashing. But nothing decodes. This guide works through the actual causes in order of likelihood — starting with your local config and ending at the server.

This isn't a "paste this template" walkthrough. Every section below assumes you already have MgCamd running and credentials in hand — you just can't get a card word out of them.

What 'Share Not Opening' Actually Means in MgCamd

The phrase "share not opening" describes a specific failure state that's completely different from a login error. MgCamd successfully authenticates to the newcamd server — user, password, port all check out — but when your box tunes to a channel and sends an ECM (Entitlement Check Message), no decrypted control word (dcw) comes back. The channel is encrypted. The decode loop never starts. Black screen.

Most guides conflate "can't connect" with "share not opening" and that's why they're useless for this problem.

Connection up vs. decode failing — two different problems

A login failure looks like a line that drops immediately or never shows as connected. MgCamd will log something like login failed or just repeatedly attempt to reconnect. You'll see the connection bounce in /var/log/mgcamd.log or wherever your image writes it.

A decode failure is quieter. The line appears up. MgCamd considers itself connected. But the ECM your box sends out goes unanswered. The channel never opens because no one is returning a valid CW for the current encryption period — which rotates every 10 seconds on most systems.

Reading the MgCamd log: ECM request, answer, and timeout markers

First thing: turn up verbosity. In /var/keys/mg_cfg, find the debug line and set it to level 3:

G: { 03 }

With that enabled, a healthy decode looks something like this in the log:

[mgcamd] ecm for caid 0x0500 pid 0x0136 provider 0x032820[mgcamd] dcw received from server 192.168.1.10:17000

A broken one looks like:

[mgcamd] ecm for caid 0x0500 pid 0x0136 provider 0x032820[mgcamd] ecm timeout, no answer from server

Or worse, you get no ECM request logged at all — which means MgCamd isn't even routing the channel's CAID to that line. Different problem, same black screen.

Newcamd protocol flow: login OK but no dcw

The newcamd handshake has two phases. Phase one: TCP connect, DES key exchange, user/pass authentication. Phase two: actual ECM/dcw traffic. You can pass phase one completely and still fail phase two. A wrong DES key is the classic example — the handshake sometimes completes in a degraded state that shows "connected" but produces nothing. An expired card on the server is another: login works fine, entitlement check returns empty.

Step 1: Verify the Newcamd Line and DES Key

Open /var/keys/newcamd.list and look at your CWS line. The format is:

CWS = hostname port username password 01 02 03 04 05 06 07 08 09 10 11 12 13 14

That last block is the DES key. It must be exactly 14 bytes — written as 14 space-separated hex pairs. Some configs write it without spaces as a 28-character hex string. Both formats exist; know which one your image expects.

newcamd.list syntax: CWS = host port user pass DES-key

A full working line looks like:

CWS = myserver.example.com 17000 myuser mypassword 01 02 03 04 05 06 07 08 09 10 11 12 13 14

After the DES key you can optionally pin a CAID and provider ID:

CWS = myserver.example.com 17000 myuser mypassword 01 02 03 04 05 06 07 08 09 10 11 12 13 14 0500 032820

Get that CAID/ident wrong and nothing for that provider will ever decode on this line, even if the server has the card.

The 14-byte (28 hex char) DES key trap

This is the single most common cause of the connected-but-black problem. Someone copies a DES key with a trailing space, drops a character, or pastes it from a PDF that substituted a zero for the letter O. The key looks fine at a glance. MgCamd connects. Nothing decodes.

Count your characters. If the key is written as pairs separated by spaces: count 14 pairs. If it's a continuous hex string: count 28 characters exactly. Not 27. Not 29. 28.

Also watch for lowercase vs. uppercase inconsistencies. The newcamd protocol is case-insensitive for hex, but some MgCamd builds have been known to misbehave with mixed case keys. Normalize to uppercase if you're chasing a ghost.

Testing reachability: telnet/nc to the newcamd port

Before blaming config, confirm the TCP connection actually works from your box:

nc -zv myserver.example.com 17000

You want to see Connection to myserver.example.com 17000 port [tcp/*] succeeded!. If it times out or refuses, you're not even reaching the server — MgCamd showing "connected" while this fails means there's a cached/stale state, which clears on restart.

Common port numbers and firewall/NAT checks

Newcamd ports vary by server config but commonly run between 10000–20000. Some operators use 17000, 15000, or custom ranges. If you're behind CGNAT or double-NAT (common with mobile internet or some ISPs), the TCP connection from your box may appear to establish locally but the server never sees a real socket. The "connected" status in MgCamd is based on the local TCP handshake completing — it doesn't prove the server-side socket is functional.

Test from a different network if you suspect NAT issues. Also verify no firewall on your router is silently blocking outbound on that port.

Step 2: Check CAID, Provider and ECM PID Routing

Even with a perfect newcamd.list, ECMs can still go nowhere if MgCamd is routing them to the wrong line or the server's reader doesn't carry that CAID. This is the second most common cause of mgcamd: share not opening решение problems — and it's almost always invisible without verbose logging.

Restricting a line to the correct CAID/ident

In /var/keys/mg_cfg, the C: block defines which CAIDs each line handles. An example:

C: ( 0500 )C: ( 0500:032820 )

The second form pins to a specific provider ident within the CAID. If your server only carries ident 032820 but you send ECMs for ident 040810, those requests return nothing. Match the ident to what the server actually has — ask the operator if you don't know, or check OSCam webif.

When the channel's CAID isn't on the reader

Some channels broadcast multiple CAIDs on the same transponder. Your box might pick CAID 0x0100 (Seca) while the server only has 0x0500 (Viaccess). The solution is either to force your box to use the CAID the server carries, or configure MgCamd's priority list to prefer the correct one. In mg_cfg, the P: lines set priority order for CAIDs when multiple options are available.

ECM PID and multiple-CAID transponders

This edge case catches people frequently. A transponder carries one channel encrypted with two different CA systems — say Nagravision on PID 0x0600 and Irdeto on PID 0x0601. Your receiver might lock onto the Irdeto PID because it's listed first in the PMT. MgCamd sends the ECM to your Irdeto line, which has no card. Meanwhile your Nagravision line sits idle with a perfectly valid card that would decode it instantly.

Force the ECM PID in your receiver's channel settings if your image supports it, or configure MgCamd to route that specific CAID to the correct line exclusively.

Priority and ignore lists (mg_cfg C:/P: entries)

The I: (ignore) lines in mg_cfg are the inverse of C: — they tell MgCamd to never send a specific CAID/ident to a particular line. Use these when you have multiple lines and want to prevent a weak line from intercepting ECMs it can't answer:

I: ( 0500:040810 )

Combined with explicit P: priority entries, you can route each CAID/ident to exactly one line and eliminate race conditions between multiple CWS entries.

Step 3: Diagnose From the Server Side (OSCam/CCcam)

At this point, if your config looks correct, the problem might not be in your box at all. Getting server-side visibility is what separates a 20-minute fix from a 3-hour debugging session.

OSCam newcamd server: [newcamd] key, port, and user block

If the server runs OSCam, check /etc/oscam/oscam.conf and /etc/oscam/oscam.server. The newcamd listener needs a dedicated section in oscam.conf:

[newcamd]key = 0102030405060708091011121314port = 17000@0500:032820

The key = here must match the DES key in your newcamd.list exactly. The port binding optionally appends @CAID:ident to restrict what this listener serves. If the CAID/ident in your box doesn't match, OSCam may accept the ECM and immediately discard it.

User accounts live in /etc/oscam/oscam.user. Confirm your username has the correct CAID and ident in the caid = and ident = fields, and that disabled = 0.

OSCam webif status: reader, ecm, and 'not found' vs 'timeout'

OSCam's web interface (commonly accessible on port 8888 or 8383) is the most useful diagnostic tool you have. Under the ECM history tab, you'll see one of three results for incoming ECM requests:

• found — the card decoded it, a valid CW went back to MgCamd. If your box is still black, the fault is local.
• not found — OSCam received the ECM but no reader could answer it. Card missing, wrong CAID, or no entitlement.
• timeout — OSCam forwarded the ECM upstream but got no answer within the configured timeout. Upstream hop problem.

That three-way split localizes the fault precisely. "Found but black" is a local PID/cam issue. "Not found" is a card/entitlement issue. "Timeout" is an upstream chain issue.

CCcam newcamd export and share visibility

For CCcam servers, check /etc/CCcam.cfg. The newcamd export section needs a NEWCAMD LISTEN PORT: entry and corresponding N: host port username password DES-key client definitions — or the server-side equivalent for outbound shares. In the CCcam info pages (usually port 16001), verify the card you expect is actually in the shares list and marked as locally available, not just as a remote share from another hop that might be down.

Card availability, AU, and entitlement checks

A technically perfect config can still produce "share not opening" if the card itself has no valid entitlement. Cards expire. Providers rotate keys with EMM updates. If AU (Automatic Update) isn't working — the card needs to be physically in a reader connected to a server that's actively receiving EMMs — entitlements go stale and decode stops even though the card is present and OSCam shows it as active.

On OSCam, check the reader status in webif: look at the entitlement list and the last EMM timestamp. A card that hasn't received an EMM in days is suspect.

Step 4: Fix Timing, Cache and ECM Rate Limits

If the config is correct and the card has entitlements, but you still hit intermittent black screens or freeze-after-a-few-seconds, the issue is timing-related. This covers the hardest category of mgcamd: share not opening решение problems because they look different every time.

ECM timeout tuning in mg_cfg (M: / T: values)

MgCamd's timeout for waiting on a dcw response is controlled by the M: (max ecm time) value in mg_cfg, often expressed in units of 100ms. A setting like:

M: { 3 }

Means MgCamd waits 300ms before giving up on a CW response. For a server two hops away with some latency, that's tight. Bump it to 6 or 8 (600–800ms) and test. Going too high creates a different problem — you might miss a CW rotation period and get a freeze instead of a seamless picture. Balance it based on your actual server latency.

The freeze-after-a-few-seconds pattern specifically happens when CW rotation occurs (roughly every 10 seconds) and the new CW doesn't arrive in time. The previous CW expires, the picture freezes, and depending on your box, it may or may not recover. Tighter timing control on the server side, or using OSCamd's CW cache, can smooth this out.

cache-ex / cache peers causing stale CWs

OSCam's cache-ex feature lets multiple OSCam instances share decoded CWs. This is normally a performance win — a CW that was just decoded by one server gets served instantly to the next requester. But a misconfigured cache peer can serve a stale CW from the previous crypto period. Your box gets a CW that looks valid, applies it, and the picture is garbage or frozen because the encryption has already rotated.

If you're seeing brief picture (1–2 seconds then freeze), disable cache-ex temporarily and see if it stabilizes. If it does, the cache peer is returning wrong data.

ECM rate limiting and 'too many ecm' throttling

Servers under load often implement ECM rate limiting per user account. If your box is sending ECMs too quickly (channel hopping, bad PMT parsing sending duplicate requests), the server will start dropping requests. In OSCam logs this shows as too many ecm or simply silence — the ECM is received and discarded without a response.

Peak-hours-only black screens are almost always this. The server's reader is overwhelmed. There's not much you can do client-side except reduce unnecessary ECM traffic — don't scan channels rapidly, make sure your box isn't sending duplicate ECMs for the same PID, and wait out the peak period.

Interference from a second cam (softcam priority)

This one is subtle and genuinely causes the "worked yesterday, broken today" scenario. If a second softcam was installed or enabled — or if your image has a built-in decoder that activates on certain CAIDs — it can grab the ECM before MgCamd gets it. The built-in cam fails to decode (no card), returns nothing, and MgCamd never sees the request at all because the ECM was consumed upstream.

Check your image's cam priority settings and make sure MgCamd has highest priority for the CAIDs you're sharing. Disable competing cams entirely for those CAIDs if your image supports it. The symptom is: ECM log in MgCamd shows no requests at all for a channel that should be requesting them.

Working through these steps systematically is the only reliable path when facing mgcamd: share not opening решение errors — there's no single fix because the failure can live in six different places. Start local (DES key, CAID routing), move to server-side verification (OSCam webif, CCcam shares), then investigate timing and interference. The OSCam "found / not found / timeout" split is the most powerful diagnostic tool available and most people never use it.