Trouble adding channels when setting up a new tuner via ZIP EPG

Live TV & DVR
1
  • Problem: Unable to add more than 34 channels
  • The lineup/EPG Location name: Local Broadcast Listings
  • Your country: USA
  • Postal code: 54113
  • Region/market/city,state: Green Bay, WI

When I am mapping channels, I am unable to add any more than 34 channels. Once I add 35 or more, I get an error on the channel-mapping window: “There was a problem saving channel mappings. Please try again”. I can add up to 34 channels without a problem. It doesn’t matter which channels I choose. Looking at the logs, I believe it may be an issue with an HTML request that is too long? PMS is having trouble parsing the request. I am on the latest version of PMS, running in docker, behind a reverse proxy. Here is a picture of the error and a snippet from the logs:

Screenshot 2026-01-06 091931
Screenshot 2026-01-06 091931779×377 11.5 KB

Jan 06, 2026 09:00:50.187 [22756244441912] DEBUG - Request: [172.18.0.4:50956 (WAN)] OPTIONS /media/grabbers/devices/1/channelmap?channelsEnabled=2.1%2C2.2%2C2.3%2C2.4%2C2.5%2C5.1%2C5.2%2C5.3%2C5.4%2C11.1%2C11.2%2C11.3%2C14.1%2C14.2%2C14.3%2C14.4%2C14.5%2C26.1%2C26.2%2C26.3%2C26.4%2C26.5%2C26.7%2C31.1%2C31.2%2C31.3%2C31.4%2C31.5%2C31.6%2C31.7%2C31.8%2C32.1%2C32.2%2C32.3%2C32.4%2C32.5%2C32.6%2C38.1%2C38.2%2C38.3%2C38.4%2C49.1%2C49.3&channelMappingByKey%5B2.1%5D=5fc76badc40548002d70bb40-5fc705fb7c6557002ee1ec60&channelMapping%5B2.1%5D=2.1&channelMappingByKey%5B2.2%5D=5fc76badc40548002d70bb40-5fc705fb088e7d002d4c729e&channelMapping%5B2.2%5D=2.2&channelMappingByKey%5B2.3%5D=5fc76badc40548002d70bb40-5fc705fb088e7d002d4c72a8&channelMapping%5B2.3%5D=2.3&channelMappingByKey%5B2.4%5D=5fc76badc40548002d70bb40-5fc705fc598c41002da3dca6&channelMapping%5B2.4%5D=2.4&channelMappingByKey%5B2.5%5D=5fc76badc40548002d70bb40-5fc705fc598c41002da3dc9b&channelMapping%5B2.5%5D=2.5&channelMappingByKey%5B5.1%5D=5fc76badc40548002d70bb40-5fc705ffc40548002d545aa9&channelMapping%5B5.1%5D=5.1&channelMappingByKey%5B5.2%5D=5fc76badc40548002d70bb40-5fc705ea7c6557002ee1e924&channelMapping%5B5.2%5D=5.2&channelMappingByKey%5B5.3%5D=5fc76badc40548002d70bb40-5fc705ec7c6557002ee1e960&channelMapping%5B5.3%5D=5.3&channelMappingByKey%5B5.4%5D=5fc76badc40548002d70bb40-614b5c31a7274dae05841e03&channelMapping%5B5.4%5D=5.4&channelMappingByKey%5B11.1%5D=5fc76badc40548002d70bb40-5fc705fd7c6557002ee1eccc&channelMapping%5B11.1%5D=11.1&channelMappingByKey%5B11.2%5D=5fc76badc40548002d70bb40-5fc705fe088e7d002d4c72f6&channelMapping%5B11.2%5D=11.2&channelMappingByKey%5B11.3%5D=5fc76badc40548002d70bb40-5fc705fea2236e002d69f887&channelMapping%5B11.3%5D=11.3&channelMappingByKey%5B14.1%5D=5fc76badc40548002d70bb40-5fc705eb088e7d002d4c6ff6&channelMapping%5B14.1%5D=14.1&channelMappingByKey%5B14.2%5D=5fc76badc40548002d70bb40-620b9e58e5664fb3b9d0b9ce&channelMapping%5B14.2%5D=14.2&channelMappingByKey%5B14.3%5D=5fc76badc40548002d70bb40-5fc705ecdd53a6002d8f8f99&channelMapping%5B14.3%5D=14.3&channelMappingByKey%5B14.4%5D=5fc76badc40548002d70bb40-5fc705eca62668002dcefab4&channelMapping%5B14.4%5D=14.4&channelMappingByKey%5B14.5%5D=5fc76badc40548002d70bb40-5fc705ecdd53a6002d8f8f7d&channelMapping%5B14.5%5D=14.5&channelMappingByKey%5B26.1%5D=5fc76badc40548002d70bb40-5fc705e8c40548002d5454ca&channelMapping%5B26.1%5D=26.1&channelMappingByKey%5B26.2%5D=5fc76badc40548002d70bb40-5fc705e8c40548002d5454e1&channelMapping%5B26.2%5D=26.2&channelMappingByKey%5B26.3%5D=5fc76badc40548002d70bb40-5fc705e9a05ef8002e615c17&channelMapping%5B26.3%5D=26.3&channelMappingByKey%5B26.4%5D=5fc76badc40548002d70bb40-5fc705ec7c6557002ee1e95b&channelMapping%5B26.4%5D=26.4&channelMappingByKey%5B26.5%5D=5fc76badc40548002d70bb40-616975b0b0c931eda5fc8482&channelMapping%5B26.5%5D=26.5&channelMappingByKey%5B26.7%5D=5fc76badc40548002d70bb40-63991a6e6b7de99c12b9ce24&channelMapping%5B26.7%5D=26.7&channelMappingByKey%5B31.1%5D=5fc76badc40548002d70bb40-669685262101807f1adeaac0&channelMapping%5B31.1%5D=31.1&channelMappingByKey%5B31.2%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca60&channelMapping%5B31.2%5D=31.2&channelMappingByKey%5B31.3%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5f&channelMapping%5B31.3%5D=31.3&channelMappingByKey%5B31.4%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5b&channelMapping%5B31.4%5D=31.4&channelMappingByKey%5B31.5%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5c&channelMapping%5B31.5%5D=31.5&channelMappingByKey%5B31.6%5D=5fc76badc40548002d70bb40-681a0204bc034498bbc710ef&channelMapping%5B31.6%5D=31.6&channelMappingByKey%5B31.7%5D=5fc76badc40548002d70bb40-681a0204bc034498bbc710f0&channelMapping%5B31.7%5D=31.7&channelMappingByKey%5B31.8%5D=5fc76badc40548002d70bb40-68dfc3166e4c5c795829dacb&channelMapping%5B31.8%5D=31.8&channelMappingByKey%5B32.1%5D=5fc76badc40548002d70bb40-5fc705fb088e7d002d4c727e&channelMapping%5B32.1%5D=32.1&channelMappingByKey%5B32.2%5D=5fc76badc40548002d70bb40-5fc706016b022a002d77f34e&channelMapping%5B32.2%5D=32.2&channelMappingByKey%5B32.3%5D=5fc76badc40548002d70bb40-5fc705fc598c41002da3dcbf&channelMapping%5B32.3%5D=32.3&channelMappingByKey%5B32.4%5D=5fc76badc40548002d70bb40-60e83cbfde21f9002d85d09d&channelMapping%5B32.4%5D=32.4&channelMappingByKey%5B32.5%5D=5fc76badc40548002d70bb40-60e83cbfde21f9002d85d0a3&channelMapping%5B32.5%5D=32.5&channelMappingByKey%5B32.6%5D=5fc76badc40548002d70bb40-616975b03bc9af1e55315d0d&channelMapping%5B32.6%5D=32.6&channelMappingByKey%5B38.1%5D=5fc76badc40548002d70bb40-5fc705ecc40548002d545603&channelMapping%5B38.1%5D=38.1&channelMappingByKey%5B38.2%5D=5fc76badc40548002d70bb40-5fc705ef8aba71002d8b7b03&channelMapping%5B38.2%5D=38.2&channelMappingByKey%5B38.3%5D=5fc76badc40548002d70bb40-5fc705ea104230002d14d8fe&channelMapping%5B38.3%5D=38.3&channelMappingByKey%5B38.4%5D=5fc76badc40548002d70bb40-5fc705f0336b43002e137d18&channelMapping%5B38.4%5D=38.4&channelMappingByKey%5B49.1%5D=5fc76badc40548002d70bb40-5fc705faa62668002dcefddc&channelMapping%5B49.1%5D=49.1&channelMappingByKey%5B49.3%5D=5fc76badc40548002d70bb40-5fc705fb104230002d14db75&channelMapping%5B49.3%5D=49.3 (8 live) #2903 Signed-in
Jan 06, 2026 09:00:50.187 [22756244441912] ERROR - Error parsing HTTP request: &channelMappingByKey%5B31.1%5D=5fc76badc40548002d70bb40-669685262101807f1adeaac0&channelMapping%5B31.1%5D=31.1&channelMappingByKey%5B31.2%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca60&channelMapping%5B31.2%5D=31.2&channelMappingByKey%5B31.3%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5f&channelMapping%5B31.3%5D=31.3&channelMappingByKey%5B31.4%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5b&channelMapping%5B31.4%5D=31.4&channelMappingByKey%5B31.5%5D=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5c&channelMapping%5B31.5%5D=31.5&channelMappingByKey%5B31.6%5D=5fc76badc40548002d70bb40-681a0204bc034498bbc710ef&channelMapping%5B31.6%5D=31.6&channelMappingByKey%5B31.7%5D=5fc76badc40548002d70bb40-681a0204bc034498bbc710f0&channelMapping%5B31.7%5D=31.7&channelMappingByKey%5B31.8%5D=5fc76badc40548002d70bb40-68dfc3166e4c5c795829dacb&channelMapping%5B31.8%5D=31.8&channelMappingByKey%5B32.1%5D=5fc76badc40548002d70bb40-5fc705fb088e7d002d4c727e&channelMapping%5B32.1%5D=32.1&channelMappingByKey%5B32.2%5D=5fc76badc40548002d70bb40-5fc706016b022a002d77f34e&channelMapping%5B32.2%5D=32.2&channelMappingByKey%5B32.3%5D=5fc76badc40548002d70bb40-5fc705fc598c41002da3dcbf&channelMapping%5B32.3%5D=32.3&channelMappingByKey%5B32.4%5D=5fc76badc40548002d70bb40-60e83cbfde21f9002d85d09d&channelMapping%5B32.4%5D=32.4&channelMappingByKey%5B32.5%5D=5fc76badc40548002d70bb40-60e83cbfde21f9002d85d0a3&channelMapping%5B32.5%5D=32.5&channelMappingByKey%5B32.6%5D=5fc76badc40548002d70bb40-616975b03bc9af1e55315d0d&channelMapping%5B32.6%5D=32.6&channelMappingByKey%5B38.1%5D=5fc76badc40548002d70bb40-5fc705ecc40548002d545603&channelMapping%5B38.1%5D=38.1&channelMappingByKey%5B38.2%5D=5fc76badc40548002d70bb40-5fc705ef8aba71002d8b7b03&channelMapping%5B38.2%5D=38.2&channelMappingByKey%5B38.3%5D=5fc76badc40548002d70bb40-5fc705ea104230002d14d8fe&channelMapping%5B38.3%5D=38.3&channelMappingByKey%5B38.4%5D=5fc76badc40548002d70bb40-5fc705f0336b43002e137d18&channelMapping%5B38.4%5D=38.4&channelMappingByKey%5B49.1%5D=5fc76badc40548002d70bb40-5fc705faa62668002dcefddc&channelMapping%5B49.1%5D=49.1&channelMappingByKey%5B49.3%5D=5fc76badc40548002d70bb40-5fc705fb104230002d14db75&channelMapping%5B49.3%5D=49.3
X-Original-Method: OPTIONS
X-Original-URL: ``https://plex.theturtlesrock.com/media/grabbers/devices/1/channelmap?channelsEnabled=2.1%2C2.2%2C2.3%2C2.4%2C2.5%2C5.1%2C5.2%2C5.3%2C5.4%2C11.1%2C11.2%2C11.3%2C14.1%2C14.2%2C14.3%2C14.4%2C14.5%2C26.1%2C26.2%2C26.3%2C26.4%2C26.5%2C26.7%2C31.1%2C31.2%2C31.3%2C31.4%2C31.5%2C31.6%2C31.7%2C31.8%2C32.1%2C32.2%2C32.3%2C32.4%2C32.5%2C32.6%2C38.1%2C38.2%2C38.3%2C38.4%2C49.1%2C49.3&channelMappingByKey[2.1]=5fc76badc40548002d70bb40-5fc705fb7c6557002ee1ec60&channelMapping[2.1]=2.1&channelMappingByKey[2.2]=5fc76badc40548002d70bb40-5fc705fb088e7d002d4c729e&channelMapping[2.2]=2.2&channelMappingByKey[2.3]=5fc76badc40548002d70bb40-5fc705fb088e7d002d4c72a8&channelMapping[2.3]=2.3&channelMappingByKey[2.4]=5fc76badc40548002d70bb40-5fc705fc598c41002da3dca6&channelMapping[2.4]=2.4&channelMappingByKey[2.5]=5fc76badc40548002d70bb40-5fc705fc598c41002da3dc9b&channelMapping[2.5]=2.5&channelMappingByKey[5.1]=5fc76badc40548002d70bb40-5fc705ffc40548002d545aa9&channelMapping[5.1]=5.1&channelMappingByKey[5.2]=5fc76badc40548002d70bb40-5fc705ea7c6557002ee1e924&channelMapping[5.2]=5.2&channelMappingByKey[5.3]=5fc76badc40548002d70bb40-5fc705ec7c6557002ee1e960&channelMapping[5.3]=5.3&channelMappingByKey[5.4]=5fc76badc40548002d70bb40-614b5c31a7274dae05841e03&channelMapping[5.4]=5.4&channelMappingByKey[11.1]=5fc76badc40548002d70bb40-5fc705fd7c6557002ee1eccc&channelMapping[11.1]=11.1&channelMappingByKey[11.2]=5fc76badc40548002d70bb40-5fc705fe088e7d002d4c72f6&channelMapping[11.2]=11.2&channelMappingByKey[11.3]=5fc76badc40548002d70bb40-5fc705fea2236e002d69f887&channelMapping[11.3]=11.3&channelMappingByKey[14.1]=5fc76badc40548002d70bb40-5fc705eb088e7d002d4c6ff6&channelMapping[14.1]=14.1&channelMappingByKey[14.2]=5fc76badc40548002d70bb40-620b9e58e5664fb3b9d0b9ce&channelMapping[14.2]=14.2&channelMappingByKey[14.3]=5fc76badc40548002d70bb40-5fc705ecdd53a6002d8f8f99&channelMapping[14.3]=14.3&channelMappingByKey[14.4]=5fc76badc40548002d70bb40-5fc705eca62668002dcefab4&channelMapping[14.4]=14.4&channelMappingByKey[14.5]=5fc76badc40548002d70bb40-5fc705ecdd53a6002d8f8f7d&channelMapping[14.5]=14.5&channelMappingByKey[26.1]=5fc76badc40548002d70bb40-5fc705e8c40548002d5454ca&channelMapping[26.1]=26.1&channelMappingByKey[26.2]=5fc76badc40548002d70bb40-5fc705e8c40548002d5454e1&channelMapping[26.2]=26.2&channelMappingByKey[26.3]=5fc76badc40548002d70bb40-5fc705e9a05ef8002e615c17&channelMapping[26.3]=26.3&channelMappingByKey[26.4]=5fc76badc40548002d70bb40-5fc705ec7c6557002ee1e95b&channelMapping[26.4]=26.4&channelMappingByKey[26.5]=5fc76badc40548002d70bb40-616975b0b0c931eda5fc8482&channelMapping[26.5]=26.5&channelMappingByKey[26.7]=5fc76badc40548002d70bb40-63991a6e6b7de99c12b9ce24&channelMapping[26.7]=26.7&channelMappingByKey[31.1]=5fc76badc40548002d70bb40-669685262101807f1adeaac0&channelMapping[31.1]=31.1&channelMappingByKey[31.2]=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca60&channelMapping[31.2]=31.2&channelMappingByKey[31.3]=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5f&channelMapping[31.3]=31.3&channelMappingByKey[31.4]=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5b&channelMapping[31.4]=31.4&channelMappingByKey[31.5]=5fc76badc40548002d70bb40-669a5d92809c1f68c1bbca5c&channelMapping[31.5]=31.5&channelMappingByKey[31.6]=5fc76badc40548002d70bb40-681a0204bc034498bbc710ef&channelMapping[31.6]=31.6&channelMappingByKey[31.7]=5fc76badc40548002d70bb40-681a0204bc034498bbc710f0&channelMapping[31.7]=31.7&channelMappingByKey[31.8]=5fc76badc40548002d70bb40-68dfc3166e4c5c795829dacb&channelMapping[31.8]=31.8&channelMappingByKey[32.1]=5fc76badc40548002d70bb40-5fc705fb088e7d002d4c727e&channelMapping[32.1]=32.1&channelMappingByKey[32.2]=5fc76badc40548002d70bb40-5fc706016b022a002d77f34e&channelMapping[32.2]=32.2&channelMappingByKey[32.3]=5fc76badc40548002d70bb40-5fc705fc598c41002da3dcbf&channelMapping[32.3]=32.3&channelMappingByKey[32.4]=5fc76badc40548002d70bb40-60e83cbfde21f9002d85d09d&channelMapping[32.4]=32.4&channelMappingByKey[32.5]=5fc76badc40548002d70bb40-60e83cbfde21f9002d85d0a3&channelMapping[32.5]=32.5&channelMappingByKey[32.6]=5fc76badc40548002d70bb40-616975b03bc9af1e55315d0d&channelMapping[32.6]=32.6&channelMappingByKey[38.1]=5fc76badc40548002d70bb40-5fc705ecc40548002d545603&channelMapping[38.1]=38.1&channelMappingByKey[38.2]=5fc76badc40548002d70bb40-5fc705ef8aba71002d8b7b03&channelMapping[38.2]=38.2&channelMappingByKey[38.3]=5fc76badc40548002d70bb40-5fc705ea104230002d14d8fe&channelMapping[38.3]=38.3&channelMappingByKey[38.4]=5fc76badc40548002d70bb40-5fc705f0336b43002e137d18&channelMapping[38.4]=38.4&channelMappingByKey[49.1]=5fc76badc40548002d70bb40-5fc705faa62668002dcefddc&channelMapping[49.1]=49.1&channelMappingByKey[49.3]=5fc76badc40548002d70bb40-5fc705fb104230002d14db75&channelMapping[49.3]=49.3

2

I solved this by bypassing the reverse proxy. URL is too long for reverse proxy buffer. Found my answer from this post: EPG matching: >159 channels not possible - Request URI too large
Sorry about the duplicate.

3

No Problem, but for me it’s not solved.

I don’t have a proxy to bypass….

:man_shrugging:

4

Can this be marked as an issue to be fixed? It seems that throwing all these mappings within the HTML request header is not the ideal way to handle this type of request.

5

I am marking this as unsolved and moved it to the correct forum category.

This is an issue that has been filed and is being looked into. Appears to be the sam ethat is reported here EPG matching: >159 channels not possible - Request URI too large Unfortunately I do not have an ETA