⚡ Quick answer: A blank guide is usually a mismatch between the channel ID in your playlist and the channel ID in your EPG source — not a broken EPG feed. Check that before assuming the EPG source itself is down.
An empty or wrong EPGalmost always traces back to one of three causes: an unreachable EPG URL, a channel-ID mismatch between your playlist and EPG source, or a timezone offset. Working through them in order isolates which one you're dealing with.
Step 1: Confirm the EPG URL Works
Paste your EPG (XMLTV) URL into a web browser. A working source downloads or displays XML data listing channels and programs. If it errors out, the link itself is wrong or expired — get a current one from your provider before troubleshooting anything else.
Step 2: Understand Channel-ID Matching
Each channel in your M3U playlist carries an identifier (often called tvg-id) that tells your player which entry in the XMLTV EPG source corresponds to that channel. If a channel's ID doesn't exactly match the ID used in the EPG source, that specific channel shows no data — even though the EPG feed itself is working correctly for every other channel. This is the single most common cause of EPG problems, and it explains why you might see a guide that works for some channels but not others.
Step 3: Fix a Channel-ID Mismatch
Most full-featured IPTV playerslet you manually assign a specific EPG channel to a playlist channel when automatic matching fails — typically by long-pressing or selecting the channel and looking for an "Edit" or "EPG Channel" option, then searching for and selecting the correct match from the EPG source. This fixes individual channels without needing to touch the playlist or EPG source itself.
Step 4: Check for a Timezone Offset
If program titles appear but the times look consistently shifted — a show listed as airing at the wrong hour, for example — that points to a timezone mismatch rather than missing data. Check both your player's timezone setting and, where adjustable, the EPG source's configured timezone, since either one being wrong shifts every listed time by the same offset.
Step 5: Clear Cache and Refresh
After correcting a URL, channel mapping, or timezone setting, clear your player's cache and refresh the guide. Players commonly cache the previous EPG data, so a fix won't visibly take effect until the cached version is cleared and the guide re-fetches fresh data.
When to Contact Your Provider
If the EPG URL itself won't load in a browser, or every channel shows no data at all rather than just a few, the issue is likely on the provider's side rather than something fixable in your player's settings — contact support at that point rather than continuing to troubleshoot channel-by-channel.
Frequently Asked Questions
Why is my EPG showing no program data at all?
The most common causes, in order, are: an incorrect or unreachable EPG (XMLTV) URL, a mismatch between your playlist's channel IDs and the EPG source's channel IDs, or a timezone offset making the data look empty for the current time slot.
What is a tvg-id and why does it matter?
tvg-id is an identifier attached to each channel in an M3U playlist that tells your player which entry in the XMLTV EPG source corresponds to that channel. If a channel's tvg-id doesn't exactly match the id used in the EPG source, that channel won't show program data even though the EPG itself is working fine for other channels.
Why do my EPG times look wrong or shifted?
This is usually a timezone configuration issue — either your player's timezone setting or the EPG source's timezone doesn't match your actual location, which shifts every listed program time by a consistent offset (often exactly by whole hours).
Can I manually map a channel to fix EPG mismatches?
Yes, most full-featured players let you manually assign a specific EPG channel to a specific playlist channel when the automatic tvg-id matching fails — usually accessed by long-pressing or selecting the channel and looking for an "Edit" or "EPG channel" option.
Do I need to clear cache after fixing an EPG issue?
Yes, generally. After correcting a URL, channel mapping, or timezone setting, clear your player's cache and refresh the guide so it re-fetches EPG data using the corrected configuration rather than continuing to show stale cached results.
Why does EPG work for some channels but not others?
This points to a per-channel tvg-id mismatch rather than a broader EPG source problem — if the guide were entirely broken, no channel would show data. Check the specific channels with missing data against the EPG source's channel list for a naming or ID discrepancy.